Communications: directive radio wave systems and devices (e.g. – Clutter elimination
Reexamination Certificate
2009-05-07
2010-06-01
Gregory, Bernarr E (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Clutter elimination
C342S089000, C342S118000, C342S134000, C342S135000, C342S137000, C342S175000, C342S195000
Reexamination Certificate
active
07728765
ABSTRACT:
A method for clutter filtering staggered pulse repetition time data signals is provided. The method comprises the steps of receiving a plurality of staggered pulse repetition time data signals. The data signals may comprise one or more desired signals and one or more clutter signals. The method further comprises separating the staggered pulse repetition time data signals into a first separated data sequence and a second separated data sequence. The first and second separated data sequences comprise equally spaced data samples. The method also comprises the step of filtering the one or more clutter signals from the first and second separated data sequences.
REFERENCES:
patent: 3480953 (1969-11-01), Shreve
patent: 3631490 (1971-12-01), Palmieri
patent: 3727224 (1973-04-01), Webb
patent: 3950749 (1976-04-01), Wiedemann
patent: 4040057 (1977-08-01), Cross et al.
patent: 4137532 (1979-01-01), Taylor et al.
patent: 4730189 (1988-03-01), Siegel et al.
patent: 4890113 (1989-12-01), Jacomini
Doviak, R.J. and D.S. Zrnic: 1993, Doppler Radar and Weather Observations, Academic Press, San Diego, Califoma, 2ndedition.
Frehlich, R., 2000: Simulation of coherent doppler lidar performance for space-based platforms, Journal of Applied Meteorology, 39, 245-262.
Frehlich, R., L.B. Cornman, and R. Sharman, 2001: Simulation of three-dimensional turbulant velocity fields. Journal of Applied Metorology, 40 246-258.
Frehlich, R. and M.J. Yadlowsky, 1994: Performance of mean-frequency estimators for doppler radar and lidar. Journal of Atmospheric and Oceanic Technology, 11, 1217-1230, corrigenda, 12, 445-446.
Sachidananda, M. and D. Zrnic, 2000: Clutter filtering and Spectral Moment Estimation for Doppler Weather Radars Using Staggered Pulse Repetition Time (PRT). Journal of Atmospheric and Oceanic Technology, 17, 323-331.
Sachidananda, M. and D.Zrnic, 2002: An Improved Cultter Filtering and Spectral Moment Estimation Algorithm for Staggered PRT Sequences. Journal of Atmospheric and Oceanic Technology, 19, 2009-2019.
Sachidananda, M., D. S. Zrnic, and R.J. Doviak, 1999: Signal design and processing techniques for WSR-88D ambiguity resolution. part-3. Technical report, National Severe Storms Laboratory.
Siggia, A. and J.R. Passarelli: 2004, Gaussian model adaptive processing (gmap) for improved ground clutter cancellation and moment calculation. Proceedings of Third European Conference on Radar in Meteorology and Hydrology, ERAD, Visby, Gotland, Sweden, 67-73.
Torres, S., M. Sachidananda, and D.S. Zrnic, 2004: Signal design and processing techniques for WSR-88D ambiguity resolution: Phase coding and staggered PRT data collection, implementation, and clutter filtering. part-8. Technical report, National Severe Storms Laboratory.
Zrnic, D.S., 1975: Simulation of weatherlike doppler spectra and signals, Journal of Applied Meteorology, 14, 619-620.
Zrnic, D. S. and P. Mahapatra, 1985: Two Methods of Amibiguity Resolution in Pulse Doppler Weather Radars. Aerospace and Electronic Systems, IEEE Transactions on, AES-21, 470-483.
M. Sachidananda and Dusan S. Zrnic, Systematic Phase Codes for Resolving Range Overlaid Signals in a Doppler Weather Radar, Journal of Atmospheric and Oceanic Technology, vol. 16, Oct. 1999.
J.C. Hubbert, M. Dixon and S. Ellis, Weather Radar Ground Clutter, Part II: Real Time Identification and Filtering.
Gray Grant
Hubbert John
Meymaris Gregory
Gregory Bernarr E
The Ollila Law Group LLC
University Corporation of Atmospheric Research
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