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AuthorsTitleJournalVol No.Page Nos.Pub. DateBin No.
J. B. VanArsdale, M. J. Deutch, M. A. Lombardi, G. K. Nelson, J. A. Sherman, J. Spicer, W. C. Yates, D. C. Yost, and S. M. BrewerDissemination of UTC(NIST) over 20 km of commercial optical fiber with active phase stabilizationOpt. Lett.492545-2548202405153266
A. Hati, M. Pomponio, and C. NelsonUltralow PM and AM Noise Generation With an Ensemble of Phase-Coherent OscillatorsIEEE T. Ultrason. Ferr.71332-339202402013251
M. Pomponio, A. Hati, and C. NelsonUltra-Low Phase Noise Frequency Division with Array of Direct Digital SynthesizersIEEE T. Instrum. Meas.735501310/1-18202312253257
K. Tarasov, B. Bauer, S. Olsen, E. Grayver, H. Feil, J. Sherman, A. Montare, M. Deutch, G. Nelson, M. Lombardi, T. Marczewski, and D. HoweTime Transfer using High-Definition Television (HDTV) Broadcast Transmitters in Common ViewProc. 2023 PTTI Mtg. 140-149202301243210
A. Hati and C. W. NelsonA Simple Optimization Method for Generating High-Purity Amplitude and Phase ModulationIEEE T. Instrum. Meas.711005009/1-9202206273168
A. Hati, M. Pomponio, C. Humiston, J. Lettang, and C. Nelson30 GHz Regenerative Frequency Divide-by-3Proc. 2022 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 4 p.202204243164
N. V. Nardelli, T. M. Fortier, M. Pomponio, E. Baumann, C. Nelson, T. R. Schibli, and A. Hati10 GHz generation with ultra-low phase noise via the transfer oscillator techniqueAPL Photonics7026105/1-10202202083148
J. A. Sherman, L. Arissian, R. C. Brown, M. J. Deutch, E. A. Donley, V. Gerginov, J. Levine, G. K. Nelson, A. N. Novick, B. R. Patla, T. E. Parker, B. K. Stuhl, D. D. Sutton, J. Yao, W. C. Yates, V. Zhang, and M. A. LombardiA Resilient Architecture for the Realization and Distribution of Coordinated Universal Time to Critical Infrastructure Systems in the United States: Methodologies and Recommendations from the National Institute of Standards and Technology (NIST)NIST Tech. Note 2187 189 p.202111033141
F. C. S. da Silva, A. B. Kos, G. E. Antonucci, J. B. Coder, C. W. Nelson, and A. HatiContinuous-capture microwave imagingNat. Commun.128 p.202106253137
N. V. Nardelli, T. M. Fortier, M. Pomponio, E. Baumann, C. Nelson, T. R. Schibli, and A. HatiTransfer Oscillator Technique for 10 GHz Generation with Ultra-Low Phase Noise < -100 dBc/Hz at 1 Hz offsetProc. 2021 Conf. Lasers and Electro-Optics 2 p.202105093166
M. Pomponio, A. Hati, and C. NelsonFPGA-based Low-Latency Digital Servo for Optical Physics ExperimentsProc. 2020 IEEE Freq. Cont. Symp. 2 p.202010223116
A. Hati and C. W. NelsonMultipath Parameter Extraction and Correction from Frequency Dependent Amplitude FadingProc. 2020 IEEE Intl. Freq. Cont. Symp. 5 p.202010223099
G. NelsonA Century of WWVJ. Res. Natl. Inst. Stan.124124025/1-31201909243066
A. Hati and C. NelsonW-band Vibrometer for Non-contact Thermoacoustic ImagingIEEE T. Ultrason. Ferr.661536-1539201908263031
V. Gerginov, F. C. S. da Silva, A. Hati, and C. NelsonAn Atomic Sensor for Direct Detection of Weak Microwave SignalsIEEE T. Microw. Theory673485-3493201908163029
A. Hati and C. W. NelsonMultipath Mitigation from FM-AM CorrelationProc. 2019 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 3 p.201904153055
A. Hati, C. Nelson, and D. HowePhase Modulation Noise ReducerUnited States Patent - No. 10,050,608 19 p.201808043050
A. Hati, F. C. S. daSilva, V. Gerginov, and C. W. NelsonEffect of Local Oscillator Performance on Ultra-wideband Indoor Localization SystemProc. 2018 IEEE Intl. Freq. Cont. Symp. 3 p.201805212978
D. Herman, S. Droste, E. Baumann, J. Rosland, D. Churin, A. Cingoz, J. Deschenes, I. H. Khader, W. C. Swann, C. Nelson, N. R. Newbury, and I. CoddingtonFemtosecond Timekeeping: Slip-Free Clockwork for Optical TimescalesPhys. Rev. Appl.9044002/1-6201804032928
A. Hati, C. W. Nelson, D. Pappas, and D. A. HowePhase noise measurements with a cryogenic power-splitter to minimize the cross-spectral collapse effectRev. Sci. Instrum.88114707/1-5201711272892
G. Stefansson, F. Hearty, P. Robertson, S. Mahadevan, T. Anderson, E. Levi, C. Bender, M. Nelson, A. Monson, B. Blank, S. Halverson, C. Henderson, L. Ramsey, A. Roy, C. Schwab, and R. TerrienA Versatile Technique to Enable Sub-Milli-Kelvin Instrument Stability for Precise Radial Velocity Measurements: Tests with the Habitable-Zone Planet FinderAstrophys. J.8331-15201612162869
A. Hati, C. Nelson, and D. HowePhase Modulation Noise ReducerUnited States Patent - No. 9,407,206 18 p.201608022884
A. Hati, C. W. Nelson, D. A. Howe, and C. F. M. DanielsonPower Splitter Thermal Noise Correlations in Cross-spectrum Noise MeasurementsProc. 2016 IEEE Intl. Freq. Cont. Symp. 4 p.201605092853
C. Barnes, A. Hati, C. Nelson, and D. HowePractical Evaluation of a 50 km Fiber Link Utilizing a Commercial ModemProc. 2016 IEEE Intl. Freq. Cont. Symp. 4 p.201605092851
A. Hati, C. W. Nelson, and D. A. HoweMeasurement of AM-to-PM Conversion in a Quartz-MEMS ResonatorProc. 2016 IEEE Intl. Freq. Cont. Symp. 4 p.201605092847
C. W. Nelson, A. Hati, and D. A. HoweCross-spectral Collapse from Anti-correlated Thermal Noise in Power SplittersProc. 2016 EFTF Conf. 4 p.201604042844
A. Hati, C. W. Nelson, and D. A. HoweOscillator PM Noise Reduction from Correlated AM NoiseIEEE T. Ultrason. Ferr.63463-469201603112789
A. Hati, C. W. Nelson, and D. A. HoweCross-spectrum measurement of thermal-noise limited oscillatorsRev. Sci. Instrum.87034708/1-8201603012828
D. A. Howe, A. Hati, C. W. Nelson, and L. Nugent-GlandorfOptical-to-RF Frequency Synthesis: Application Priorities for Ultra-low Phase NoiseFrontiers in Optics 2015 3 p.201510182786
P. Adamson, I. Anghel, N. Ashby, A. Aurisano, G. Barr, M. Bishai, A. Blake, G. J. Bock, D. Bogert, R. Bumgarner, S. V. Cao, C. M. Castromonte, S. Childress, J. A. B. Coelho, L. Corwin, D. Cronin-Hennessy, J. K. de Jong, A. V. Devan, N. E. Devenish, M. V. Diwan, C. O. Escobar, J. J. Evans, E. Falk, G. J. Feldman, B. Fonville, M. V. Frohne, H. R. Gallagher, R. A. Gomes, M. C. Goodman, P. Gouffon, N. Graf, R. Gran, K. Grzelak, A. Habig, S. R. Hahn, J. Hartnell, R. Hatcher, J. Hirschauer, A. Holin, J. Huang, J. Hylen, G. M. Irwin, Z. Isvan, C. James, S. R. Jefferts, D. Jensen, T. Kafka, S. M. S. Kasahara, G. Koizumi, M. Kordosky, A. Kreymer, K. Lang, J. Ling, P. J. Litchfield, P. Lucas, W. A. Mann, M. L. Marshak, D. Matsakis, N. Mayer, A. McKinley, C. McGivern, M. M. Medeiros, R. Mehdiyev, J. R. Meier, M. D. Messier, W. H. Miller, S. R. Mishra, S. Mitchell, S. Moed Sher, C. D. Moore, L. Mualem, J. Musser, D. Naples, J. K. Nelson, H. B. Newman, R. J. Nichol, J. A. Nowak, J. O'Connor, M. Orchanian, R. B. Pahlka, J. Paley, T. E. Parker, R. B. Patterson, G. Pawloski, A. Perch, S. Phan-Budd, R. K. Plunkett, N. Poonthottathil, E. Powers, X. Qiu, A. Radovic, B. Rebel, K. Ridl, S. Romisch, C. Rosenfeld, H. A. Rubin, M. C. Sanchez, J. Schneps, A. Schreckenberger, P. Schreiner, R. Sharma, A. Sousa, N. Tagg, R. L. Talaga, J. Thomas, M. A. Thomson, X. Tian, A. Timmons, S. C. Tognini, R. Toner, D. Torretta, J. Urheim, P. Vahle, B. Viren, A. Weber, R. C. Webb, C. White, L. Whitehead, L. H. Whitehead, S. G. Wojcicki, J. Wright, V. Zhang, and R. ZwaskaPrecision measurement of the speed of propagation of neutrinos using the MINOS detectorsPhys. Rev. D92052005/1-10201509172788
P. D. Schwindt, Y. Jau, H. L. Partner, D. K. Serkland, A. Ison, A. McCants, E. Winrow, J. Prestage, J. Kellogg, N. Yu, C. D. Boschen, I. Kosvin, D. Mailloux, D. Scherer, C. Nelson, A. Hati, and D. A. HoweMiniature Trapped-Ion Frequency Standard with 171 Yb+Proc. 2015 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 752-757201504132799
A. Hati, C. W. Nelson, and D. A. HowePM Noise Measurement at W-BandIEEE T. Ultrason. Ferr.611961-1966201412122732
A. Hati, C. W. Nelson, B. Riddle and D. A. HoweA 40 GHz Air-Dielectric Cavity Oscillator with Low Phase Modulation NoiseNCSLI Measure J. Meas. Sci.948-54201409012729
A. Hati, C. W. Nelson, and D. A. HoweReducing oscillator PM noise from AM-PM noise correlationElectron. Lett.501195-1197201408142737
D. A. Howe, A. Hati and C. W. NelsonUltra-low Phase Noise Frequency Synthesis from Optical Atomic Frequency StandardsProc. 2014 EFTF Conf. 4 p.201406262738
C. Nelson, A. Hati, and D. HoweCollapse of the Cross-spectral FunctionProc. 2014 IEEE Intl. Freq. Cont. Symp. 2 p.201405222725
A. Hati, C. Nelson, and D. HoweCorrelation Measurements between PM and AM Noise in OscillatorsProc. 2014 IEEE Intl. Freq. Cont. Symp. 3 p.201405222724
M. A. Lombardi and G. K. NelsonWWVB: A Half Century of Delivering Accurate Frequency and Time by RadioJ. Res. Natl. Inst. Stan.11925-54201403122702
C. Nelson, A. Hati, and D. HoweA collapse of the cross-spectral function in phase noise metrologyRev. Sci. Instrum.85024705-7201402252697
D. A. Howe, A. Hati, and C. W. NelsonUltra-low Phase Noise Oscillators and Synthesizers for Managing and Relieving Spectral Congestion: A Tutorial IntroductionProc. 2013 PTTI Mtg. 263-264201312052768
C. Nelson, A. Hati, and D. HowePhase inversion and collapse of the cross-spectral functionElectron. Lett.491640-1641201312052698
A. Hati, C. W. Nelson, C. Barnes, D. Lirette, T. Fortier, F. Quinlan, J. A. DeSalvo, A. Ludlow, S. A. Diddams, and D. A. HoweState-of-the-Art RF Signal Generation From Optical Frequency DivisionIEEE T. Ultrason. Ferr.601796-1803201309022646
T. M. Fortier, F. Quinlan, A. Hati, C. Nelson, J. A. Taylor, Y. Fu, J. Campbell, and S. A. DiddamsPhotonic microwave generation with high-power photodiodesOpt. Lett.381712-1714201305142665
F. Quinlan, T. M. Fortier, H. Jiang, A. Hati, C. Nelson, Y. Fu, J. Campbell, and S. A. DiddamsExploiting shot noise correlations in the photodetection of ultrashort optical pulse trainsNat. Photonics7290-293201303102649
J. A. DeSalvo, A. Hati, C. Nelson, and D. A. HowePhase-Noise Measurement System for the Terahertz-BandIEEE T. Ter. Sci. Tech.2638-641201211302599
A. Hati, C. W. Nelson, C. Barnes, D. Lirette, J. A. DeSalvo and D. A. HoweUltra-low-Noise Regenerative Frequency DividerIEEE T. Ultrason. Ferr.592596-2598201211112609
S. Mahadevan, L. Ramsey, C. Bender, R. Terrien, J. T. Wright, S. Halverson, F. Hearty, M. Nelson, A. Burton, S. Redman, S. Osterman, S. A. Diddams, J. Kasting, and M. EndlThe Habitable-Zone Planet Finder: A Stabilized Fiber-Fed NIR Spectrograph for the Hobby-Eberly TelescopeProc. 2012 SPIE Conf.844684461S-14201209242639
C. W. Nelson and D. A. HoweA Sub-Sampling Digital PM/AM Noise Measurement SystemNCSLI Measure J. Meas. Sci.770-73201209012650
A. Hati, C. W. Nelson, N. Ashby, and D. A. HoweCalibration uncertainty for the NIST PM/AM noise standardsNIST Spec. Publ. 250-90 33 p.201207312582
T. M. Fortier, C. W. Nelson, A. Hati, F. Quinlan, J. Taylor, H. Jiang, C. W. Chou, T. Rosenband, N. Lemke, A. Ludlow, D. Howe, C. W. Oates and S. A. DiddamsSub-femtosecond absolute timing jutter with a 10 GHz hybrid photonic-microwave oscillatorAppl. Phys. Lett.100231111-3201206072601
T. M. Fortier, C. W. Nelson, A. Hati, F. Quinlan, J. Taylor, H. Jiang, C. W. Chou, N. Lemke, A. Ludlow, D. Howe, C. W. Oates, and S. A. DiddamsA hybrid 10 GHz photonic-microwave oscillator with sub-femtosecond absolute timing jitterProc. 2012 IEEE Intl. Freq. Cont. Symp. 763-764201205242634
K. J. Hughes, A. Hati, C. Nelson, and D. HoweVibrational Analysis of Stabilized LasersProc. 2012 IEEE Intl. Freq. Cont. Symp. 602-605201205242630
C. W. Nelson and D. A. HoweA Sub-Sampling Digital PM/AM Noise Measurement SystemProc. 2012 IEEE Intl. Freq. Cont. Symp. 21-24201205242629
D. A. Howe, A. Hati, C. W. Nelson, and D. LirettePM-AM Correlation Measurements and AnalysisProc. 2012 IEEE Intl. Freq. Cont. Symp. 16-20201205242628
J. A. DeSalvo, A. Hati, C. Nelson, and D. A. HowePhase-Noise Measurement of a 670 GHz SourceProc. 2012 IEEE Intl. Freq. Cont. Symp. 25-28201205242627
D. Lirette, C. Barnes, A. Hati, J. A. DeSalvo, C. W. Nelson, and D. A. HoweCommon-Arm Counter Propagating Phase Bridge for Vibration Sensitivity MeasurementProc. 2012 IEEE Intl. Freq. Cont. Symp. 529-532201205242626
A. Hati, C. W. Nelson, C. Barnes, D. Lirette, J. A. DeSalvo, T. Fortier, F. Quinlan, A. Ludlow, T. Rosenband, S. A. Diddams, and D. A. HoweUltra-low-noise Regenerative Frequency Divider for High Spectral Purity RF Signal GenerationProc. 2012 IEEE Intl. Freq. Cont. Symp. 625-628201205242625
J. Lowe, M. Deutch, G. Nelson, D. Sutton, W. Yates, P. Hansen, O. Eliezer, T. Jung, S. Morrison, Y. Liang, D. Rajan, S. Balasubramanian, A. Ramasami, and W. KhalilNew Improved System for WWVB BroadcastProc. 2011 PTTI Mtg. 163-184201111142591
D. A. Howe, D. Lirette, N. Ashby, A. Hati, and C. NelsonCharacterizing Dynamic Effects of Oscillator Power CyclingProc. 2011 PTTI Mtg. 353-362201111142590
C. W. Nelson, A. Hati, and D. A. HoweCommon-Arm Counter-Propagating Interferometer for Fiber Vibration MeasurementsIEEE Photonic. Tech. L.231633-1635201111012375
C. Barnes, A. Hati, C. W. Nelson, and D. A. Howe5 MHz Phase Detector With Low Residual FlickerElectron. Lett.472 p.201109152554
T. Li, B. Argence, A. Haboucha, H. Jiang, J. L. Dornaux, D. Kon�, A. Clairon, P. Lemonde, G. Santarelli, C. Nelson, A. Hati, and E. BurtLow Vibration Sensitivity Fiber Spools for Laser StabilizationProc. 2011 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 739-741201105022580
C. Barnes, A. Hati, C. W. Nelson, and D. A. HoweResidual PM Noise Evaluation of Radio Frequency MixersProc. 2011 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 724-728201105022556
D. A. Howe, N. Ashby, D. Lirette, A. Hati, and C. NelsonLimited Live-time Measurements of Frequency SpectraProc. 2011 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 99-102201105022553
A. Hati, C. W. Nelson, and D. A. HoweVibration Sensitivity of Optical Components: A SurveyProc. 2011 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 532-535201105022552
J. Taylor, S. Datta, A. Hati, C. Nelson, F. Quinlan, A. Joshi, and S. A. DiddamsCharacterization of Power-to-Phase Conversion in High-Speed P-I-N PhotodiodesIEEE Photonics Journal3140-151201102012494
A. Hati, C. W. Nelson, B. F. Riddle, and D. A. HoweHigh Spectral Purity Oscillator at 40 GHz: Design Using Air-Dielectric CavityProc. 2010 IEEE Intl. Freq. Cont. Symp. 437-439201006022468
J. A. Taylor, F. Quinlan, A. Hati, C. W. Nelson, S. A. Diddams, S. Datta, and A. JoshiPhase Noise in the Photodetection of Ultrashort Optical PulsesProc. 2010 IEEE Intl. Freq. Cont. Symp. 684-688201006022465
C. W. Nelson, A. Hati, J. F. Garcia-Nava, and D. A. HowePhase noise suppression in frequency comb generatorsProc. 2010 IEEE Intl. Freq. Cont. Symp. 440-442201006022464
A. Hati, C. W. Nelson, and D. A. HowePhase-lock Loops in Vibration EnvironmentsProc. 2009 PTTI Mtg. 303-312200911162435
A. Hati, C. W. Nelson, and D. A. HoweVibration-Induced PM and AM Noise in Microwave ComponentsIEEE T. Ultrason.562050-2059200910012322
M. A. Lombardi, A. N. Novick, J. P. Lowe, M. J. Deutch, G. K. Nelson, D. D. Sutton, W. C. Yates, and D. W. HansonWWVB Radio Controlled Clocks: Recommended Practices for Manufacturers and Consumers (2009 edition)NIST Spec. Publ. 960-14 68 p.200909082422
N. Ashby and R. A. NelsonThe global positioning system, relativity, and extraterrestrial navigationProc. IAU Symp.2619 p.200904272444
A. Hati, C. W. Nelson, and D. A. HoweEffect of Vibration on PM and AM noise of Oscillatory and Non-oscillatory Components at 10 GHzProc. 2009 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 524-529200904202371
A. Hati, C. W. Nelson, and D. A. HoweVibration-induced PM Noise in Oscillators and its SuppressionAerial VehiclesCh. 13259-286200901012328
J. A. Taylor, C. W. Nelson, A. Hati, N. Ashby, and D. A. HoweResidual Vibration-induced PM Noise of a Rigid Optical Fiber SpoolProc. 2008 PTTI Mtg. 549-557200812012343
A. Hati, C. W. Nelson, J. Taylor, N. Ashby and D. A. HoweCancellation of Vibration-Induced Phase Noise in Optical FibersIEEE Photonics Tech. Lett.201842-1844200811152119
C. W. Nelson, A. Hati, and D. A. HoweRelative Intensity Noise Suppression for RF Photonic LinksIEEE Photonics Tech. Lett.201542-1544200809152293
J. Taylor, C. W. Nelson, A. Hati, N. Ashby, and D. A. HoweVibration-induced PM noise measurements of a rigid optical fiber spoolProc. 2008 IEEE Intl. Freq. Cont. Symp. 807-810200805192310
W. Zhou, O. Okusaga, C. Nelson, D. Howe, and G. Carter10 GHz Dual loop opto-electronic oscillator without RF-amplifiersProc. 2008 SPIE Conf.689768970Z/1-6200802122908
C. W. Nelson, A. Hati, D. A. Howe, and W. ZhouMicrowave Optoelectronic Oscillator with Optical GainProc. 2007 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 1014-1019200705292250
N. Ashby, D. A. Howe, J. Taylor, A. Hati, C. W. NelsonOptical Fiber Vibration and Acceleration ModelProc. 2007 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 547-551200705292240
K. M. Hudek, A. Hati, D. A. Howe, C. W. Nelson and W. ZhouFurther Examination of the Injection-Locked Dual Optoelectronic OscillatorProc. 2007 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 796-800200705292239
A. Hati, C. W. Nelson, D. A. Howe, N. Ashby, J. Taylor, K. M. Hudek, C. Hay, D. J. Seidel, and D. EliyahuVibration sensitivity of microwave componentsProc. 2007 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 541-546200705292234
D. A. Howe, A. Hati, C. W. Nelson, J. Taylor, and N. AshbyActive Vibration-induced PM Noise Control in Optical Fibers: Preliminary StudiesProc. 2007 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 552-556200705292233
D. A. Howe, A. Sen Gupta, C. W. Nelson, and F. L. WallsHigh Spectral Purity Microwave Oscillator Using Air-Dielectric CavityUnited States Patent No. 7,075,378 10 p.200607112180
H. Ascarrunz, F. L. Walls, A. Hati, C. W. Nelson, and D. A. HoweA Regenerative Frequency CombProc. 2006 IEEE Intl. Freq. Cont. Symp. 60-64200606052168
A. Hati, C. W. Nelson and D. A. HoweLow Phase Noise Amplifier and Oscillator Using Feed-Forward Technique at 10 GHzProc. 2006 IEEE Intl. Freq. Cont. Symp. 228-232200606052159
A. Hati, D. A. Howe, and C. W. NelsonComparison of AM noise in commercial amplifiers and oscillators at X-bandProc. 2006 IEEE Intl. Freq. Cont. Symp. 740-744200606052158
B. F. Riddle and C. W. NelsonImpedence Control for Critically Coupled CavitiesProc. 2005 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and PTTI 488-493200508292123
D. A. Howe, J. Lanfranchi, L. Cutsinger, A. Hati, and C. W. NelsonVibration-induced PM Noise in Oscillators and Measurements of Correlation with Vibration SensorsProc. 2005 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and PTTI 494-498200508292103
A. Hati, C. W. Nelson, J. F. Garcia Nava, D. A. Howe, F. L. Walls, H. Ascarrunz, J. Lanfranchi, and B. F. RiddleW-band dual channel AM/PM noise measurement system - an updateProc. 2005 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and PTTI 503-508200508292094
M. A. Lombardi, A. N. Novick, J. P. Lowe, M. Deutch, G. K. Nelson, D. Sutton, W. Yates, and D. W. HansonWWVB Radio Controlled Clocks: Recommended Practices for Manufacturers and ConsumersNIST Spec. Publ. 960-14 64 p.200501011976
G. K. Nelson, M. A. Lombardi, and D. T. OkayamaNIST Time and Frequency Radio Stations: WWV, WWVH, and WWVBNIST Spec. Publ. 250-67 161 p.200501011969
C. W. Nelson, D. A. Howe and A. Sen GuptaUltra-low Noise Cavity Stabilized Microwave Reference Oscillator using an Air-dielectric ResonatorProc. 2004 PTTI Mtg. 173-178200412072007
A. Sen Gupta, D. A. Howe, C. Nelson, A. Hati, F. L. Walls, and J. F. Garcia NavaHigh Spectral Purity Microwave Oscillator: Design Using Conventional Air-Dielectric CavityIEEE T. Ultrason. Ferr.511225-1231200410011995
A. Hati, C. W. Nelson, J. F. Garcia Nava, D. A. Howe, and F. L. WallsW-band dual channel PM/AM noise measurement systemProc. 2004 Joint Mtg. IEEE Intl. Freq. Cont. Symp. And UFFC Conf. 298-302200408231978
J. F. Garcia Nava, A. Hati, C. W. Nelson, A. Sen Gupta, F. L. Walls, and T. N. TassetParallel Configuration for Conjugate Regenerative DividersProc. 2003 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 1037-1041200305041890
A. Sen Gupta, D. A. Howe, C. W. Nelson, A. Hati, F. L. Walls and J. F. Garcia NavaHigh-Spectral-Purity Microwave Oscillator: Design Using Conventional Air-Dielectric CavityProc. 2003 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 423-429200305041887
T. E. Parker, V. S. Zhang, A. McKinley, L. M. Nelson, J. Rohde, and D. MatsakisInvestigation of instabilities in two-way time transferProc. 2002 PTTI Mtg. 381-390200212031866
S. Francis, B. Ramsey, S. Stein, J. Leitner, M. Moreau, R. Burns, R. A. Nelson, T. R. Bartholomew, and A. GiffordTimekeeping and time dissemination in a distributed space-based clock ensembleProc. 2002 PTTI Mtg. 201-214200212021869
D. A. Howe, A. Hati, C. W. Nelson, F. L. Walls, J. F. Garcia Nava and A. Sen GuptaWide-Range Microwave Frequency Synthesis Using An Offset Passive ResonatorProc. 2002 IEEE Intl. Freq. Cont. Symp. 584-589200205281802
D. A. Howe, C. W. Nelson, F. L. Walls, J. F. Garcia Nava, A. Hati, and A. Sen GuptaA 100 GHz AM and PM Noise Measurement System: Preliminary Design and PerformanceProc. 2002 IEEE Intl. Freq. Cont. Symp. 690-698200205281801
S. R. Jefferts, J. H. Shirley, T. E. Parker, T. P. Heavner, D. M. Meekhof, C. W. Nelson, F. Levi, G. Costanzo, A. DeMarchi, R. E. Drullinger, L. Hollberg, W. D. Lee, and F. L. WallsAccuracy evaluation of NIST-F1Metrologia39321-336200201011823
R. A. Nelson, D. D. McCarthy, S. Malys, J. Levine, B. Guinot, H. F. Fliegel, R. L. Beard, and T. R. BartholomewThe leap second: its history and possible futureMetrologia38509-529200112011530
A. Sen Gupta, J. F. Garcia Nava, C. W. Nelson, D. A. Howe, and F. L. WallsMicrowave Synthesizers for Atomic Frequency StandardsProc. 2001 Freq. Stand. Metrology Symp. 577-579200109091570
M. A. Lombardi, L. M. Nelson, A. N. Novick, and V. S. ZhangTime and Frequency Measurements Using the Global Positioning System (GPS)Cal Lab Int. J. Metrology826-33200108011424
M. Deutch, E. Farrow, J. P. Lowe, G. Nelson, D. Okayama, D. Patterson, D. Sutton, and W. YatesNIST Time and Frequency Broadcasts from Radio Stations WWVB, WWV, and WWVHProc. 2001 NCSLI Conf. 14 p.200107291434
J. Levine, M. A. Lombardi, L. M. Nelson, and V. S. ZhangTechnical Reference Manual for NIST Automated Computer Time Service (ACTS)NISTIR 6611 95 p.200107261422
T. E. Parker, P. Hetzel, S. R. Jefferts, S. Weyers, L. M. Nelson, A. Bauch, and J. LevineFirst Comparison of Remote Cesium FountainsProc. 2001 IEEE Intl. Freq. Cont. Symp. 63-68200106041484
L. M. Nelson and J. LevineUnderstanding Limitations of GPS Carrier Phase Frequency Transfer on a Transatlantic BaselineProc. 2001 IEEE Intl. Freq. Cont. Symp. 205-210200106041475
T. E. Parker, P. Hetzel, S. R. Jefferts, S. Weyers, L. M. Nelson, A. Bauch, and J. LevineFirst Comparison of Remote Cesium FountainsProc. 2001 EFTF Conf. 57-61200103061457
A. Sen Gupta, F. L. Walls, J. F. Garcia Nava, and C. W. NelsonMicrowave Synthesisers for Atomic Frequency StandardsProc. 2001 ICTF Conf. 59-69200102061464
M. A. Lombardi, L. M. Nelson, A. N. Novick, and V. S. ZhangTime and Frequency Measurements Using the Global Positioning System (GPS)Proc. 2001 Meas. Sci. Conf. 10 p.200101251417
L. M. Nelson and J. LevineExamining GPS Carrier Phase Analysis to Evaluate the Accuracy of Frequency Transfer using Data from NIST and PTBProc. 2000 PTTI Mtg. 57-64200011281428
J. F. Garcia Nava, C. W. Nelson, and F. L. WallsCross Correlation Techniques Applied to the Measurement of PM and AM Noise in Pulsed AmplifiersProc. 2000 IEEE Intl. Freq. Cont. Symp. 506-510200006061382
L. M. Nelson, J. Levine, and P. HetzelComparing Primary Frequency Standards at NIST and PTBProc. 2000 IEEE Intl. Freq. Cont. Symp. 622-628200006061378
K. M. Larson, J. Levine, L. M. Nelson, and T. E. ParkerAssessment of GPS Carrier-Phase Stability for Time-Transfer ApplicationsIEEE T. Ultrason. Ferr.47484-494200003011328
M. Deutch, D. W. Hanson, G. Nelson, C. Snider, D. Sutton, W. Yates, P. Hansen, and B. HopkinsWWVB Improvements: New Power from an Old TimerProc. 1999 PTTI Mtg. 523-535199912071406
L. M. Nelson, J. Levine, T. E. Parker, K. M. Larson, and P. HetzelComparison of Atomic Frequency Standards at NIST and PTB Using Carrier-Phase GPSProc. 1999 PTTI Mtg. 449-459199912071355
L. M. Nelson, K. M. Larson, and J. LevineReview of GPS Carrier-Phase and Two-Way Satellite Time Transfer Measurement Results between Schriever Air Force Base and the United States Naval ObservatoryProc. 1999 ION GPS Conf. 1023-1033199909131338
L. M. Nelson, K. M. Larson, and J. LevineCalibration of Carrier Phase GPS ReceiversProc. 1999 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 230-234199904131317
W. D. Lee, C. W. Nelson, D. A. Jennings, L. O. Mullen, J. H. Shirley, F. L. Walls, R. E. Drullinger, T. E. Parker, A. Hasegawa, K. Fokuda, N. Kotake, M. Kajita, and T. MorikawaAccuracy Evaluations and Frequency Comparison of NIST-7 and CRL-01Proc. 1999 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf. 62-65199904131315
K. M. Larson, L. M. Nelson, J. Levine, T. Parker, and E. D. PowersA Long-term Comparison Between GPS Carrier-Phase and Two-satellite Time TransferProc. 1998 PTTI Mtg. 247-255199812011293
D. M. Meekhof, S. R. Jefferts, W. D. Lee, and C. W. NelsonPreliminary Results from the NIST Cs Fountain Frequency StandardIEEE CPEM 1998 Conf. Dig. 130-131199807061450
A. Hasegawa, K. Fukuda, N. Kotake, M. Kajita, T. Morikawa, W. D. Lee, C. W. Nelson, D. A. Jennings, L. O. Mullen, J. H. Shirley, and R. E. DrullingerDevelopment of an Improved Optically Pumped Primary Frequency StandardIEEE CPEM 1998 Conf. Dig. 177-178199807061449
A. Hasegawa, K. Fukuda, N. Kotake, M. Kajita, T. Morikawa, W. D. Lee, C. W. Nelson, D. A. Jennings, L. O. Mullen, and J. H. ShirleyAn Improved, Optically Pumped, Primary Frequency Standard: Joint Development by CRL and NISTProc. 1998 IEEE Intl. Freq. Cont. Symp. 61-63199805261242
S. R. Jefferts, D. M. Meekhof, L. Hollberg, R. E. Drullinger, W. D. Lee, F. L. Walls, C. W. Nelson, F. Levi, and T. E. ParkerNIST Cesium Fountain Frequency Standard: Preliminary ResultsProc. 1998 IEEE Intl. Freq. Cont. Symp. 2-5199805261237
R. Beard, I. Galysh, J. Oaks, M. Largay, P. Landis, W. Reid, M. Ehnert, R. Eisenhauer, D. W. Hanson, L. M. Nelson, A. J. Clements, J. Durden, L. Brownhill, J. Wright, C. Duffy, J. Kasik, and J. BuissonC-and Ku-Band Two-Way Satellite Time Transfer Comparison ExperimentProc. 1997 PTTI Mtg. 253-263199712022366
L. M. Nelson, P. Axelrad, and D. M. EtterAdaptive Detection of Code Delay and Multipath in a Simplified GPS Signal ModelProc. 1997 ION GPS Conf. 569-581199709161211
M. A. Weiss, V. Zhang, L. M. Nelson, V. Hanns, and M. RegaladoDelay Variations in Some GPS Timing ReceiversProc. 1997 IEEE Intl. Freq. Cont. Symp. 304-312199705281205
J. Li, E. Ferre-Pikal, C. W. Nelson and F. L. WallsReview of PM and AM Noise Measurement SystemsProc. 1997 Intl. Conf. Microwave and Milli. Wave Tech. 197-200199703031528
E. S. Ferre-Pikal, F. L. Walls, and C. W. NelsonGuidelines for Designing BJT Amplifiers with Low 1/f AM and PM NoiseIEEE T. Ultrason. Ferr.44335-343199703011139
C. W. Nelson, F. L. Walls, and C. K. BoggsExtending the Range for Precision AM Noise MeasurementsProc. 1996 IEEE Intl. Freq. Cont. Symp. 854-857199606051156
F. L. Walls, F. G. Ascarrunz, C. W. Nelson, and L. M. NelsonFrequency Synthesis and Metrology at 10^(-17) and BeyondProc. 1995 Freq. Stand. Metrology Symp. 468-470199510161095
M. A. Lombardi and L. M. NelsonRecent Improvements Made to the NIST Frequency Measurement ServiceProc. 1995 NCSL Conf. 793-804199507161075
F. L. Walls, E. S. Pikal, and C. W. NelsonTutorial: Fundamental Concepts and Definitions in PM and AM Noise Metrology; Discussion of Error Models for PM and AM Noise Measurements; State-of-the-Art Measurement Techniques for PM and AM Noise (3 parts)Proc. 1994 PTTI Mtg. 255-279199412061077
L. M. Nelson, C. W. Nelson, and F. L. WallsRelationship of AM to PM Noise in Selected RF OscillatorsIEEE T. Ultrason. Ferr.41680-684199409011015
F. L. Walls, C. W. Nelson, M. Siccardi, and A. De MarchiA New 5 and 10 MHz High Isolation Distribution AmplifierProc. 1994 IEEE Intl. Freq. Cont. Symp. 567-57119940601498
E. S. Ferre, L. M. Nelson, F. G. Ascarrunz, and F. L. WallsRelationship of AM to PM Noise in Selected Microwave Amplifiers, rf Oscillators, and Microwave OscillatorsProc. 1993 ICNF Conf. 611-61419930816490
L. M. Nelson and F. L. WallsEnvironmental Effects In Mixers and Frequency Distribution SystemsProc. 1992 IEEE Freq. Cont. Symp. 831-83719920527971
C. W. Nelson, F. L. Walls, F. G. Ascarrunz, and P. A. PondProgress on Prototype Synthesizer Electronics for ^(199)Hg^+ at 40.5 GHzProc. 1992 IEEE Freq. Cont. Symp. 64-6919920527970
F. L. Walls, L. M. Nelson, and G. R. ValdezDesigning for Frequency and Time Metrology at the 10^(-18) LevelProc. 1992 EFTF Conf. 477-48119920317967

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