Communications: directive radio wave systems and devices (e.g. – Return signal controls radar system – Receiver
Reexamination Certificate
2008-01-08
2008-01-08
Sotomayor, John B (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Return signal controls radar system
Receiver
C342S195000, C342S104000, C342S109000, C342S089000, C342S099000, C342S196000
Reexamination Certificate
active
11180811
ABSTRACT:
The present invention relates to active sensor applications, and more particularly is directed to efficient systems and methods for detection and tracking of one or more targets. The invention provides a method for receiving signals reflected from one or more targets, processing the received signals and the transmitted signal to compute two or more slices of the cross ambiguity function associated with the signals, and estimating the signal delay and the Doppler shit associated with the targets from the computed slices.
REFERENCES:
patent: 3827629 (1974-08-01), Max et al.
patent: 4339176 (1982-07-01), Lee
patent: 4389092 (1983-06-01), Tamura
patent: 4440472 (1984-04-01), Cohen
patent: 4462032 (1984-07-01), Martin
patent: 4468093 (1984-08-01), Brown
patent: 4531195 (1985-07-01), Lee
patent: 5416488 (1995-05-01), Grover et al.
patent: 5555532 (1996-09-01), Sacha
patent: 5583512 (1996-12-01), McEligot
patent: 5808580 (1998-09-01), Andrews, Jr.
patent: 6232913 (2001-05-01), Lehtinen
patent: 6636174 (2003-10-01), Arikan et al.
patent: 7081848 (2006-07-01), Adams
patent: 7221701 (2007-05-01), Arikan et al.
patent: 7224721 (2007-05-01), Betz et al.
patent: 2004/0042531 (2004-03-01), Arikan et al.
patent: 2004/0071200 (2004-04-01), Betz et al.
patent: 2004/0085241 (2004-05-01), Arikan et al.
patent: 2006/0082491 (2006-04-01), Arikan et al.
patent: 61212781 (1986-09-01), None
P. M. Woodward, Probability and Information Theory, with Applications to Radar, McGraw-Hill Book Co., Inc., pp. 115-125, 1953.
V. Namias, “The fractional order Fourier transform and its application to quantum Mechanics”, J. Inst. Math. Appl., vol. 25, pp. 241-265, 1980.
W. Lohmann and B. H. Soffer, “Relationships between the Radon-Wigner and fractional Fourier transforms”, J. Opt. Soc. Am. A, vol. 11, pp. 1798-1801, 1994.
A. K. Özdemir and O. Arikan, “Fast computation of the ambiguity function and the Wigner distribution on arbitrary line segments”, IEEE trans. Signal Process., vol. 49, No. 2, pp. 381-393, Feb. 2001.
A. K. Özdemir and O. Arikan, “Efficient computation of the ambiguity function and the Wigner distribution on arbitrary line segments”, in Proc. IEEE Int. Symp. Circuits and Systems, vol. IV, pp. 171-174, May 1999.
I. Raveh and D. Medlovic, “New properties of the Radon transform of the cross-Wigner/ambiguity distribution function”, IEEE Trans. Signal Process., vol. 47, No. 7, pp. 2077-2080, Jul. 1999.
D. Mendlovic and H. M. Ozaktas, “Fractional Fourier transforms and their optical implementation: I”J. Opt. Soc. Am. A. vol. 10, pp. 1875-1881, 1993.
H. M. Ozaktas and D. Mendlovic, “Fractional Fourier transforms and their optical implementation: II”, J. Opt. Soc. Am. A, vol. 10, No. 12, pp. 2522-2531, 1993.
H. M. Ozaktas, O. Arikan, M. A. Kutay and G. Bozdagi, “Digital computation of the fractional Fourier transform”, IEEE Trans. Signal Process., vol. 44, No. 9, pp. 2141-2150, Sep. 1996.
L. B. Almedia, “The fractional Fourier transform and time-frequency Representations”,IEEE Trans. Signal Process., vol. 42, No. 11, pp. 3084-3091, Nov. 1994.
L. Cohen, “Time-frequency distributions—A review”, Proc. IEEE, vol. 77, No. 7 pp. 941-981, Jul. 1989.
R. N. Bracewell, The Fourier Transform and its Applications, McGraw-Hill Book Company, pp. 356-381, 1978.
G. H. Golub and C. F. Van Loan, Matrix Computations, Baltimore: John Hopkins University Press, pp. 206-209, 222-227, 236-241, 248-253, 256-259, 1996.
P. W. East (ed.), Advanced ESM Technology, Microwave Exhibitions and Publishers Ltd., 1988.
V. G. Nebabin, Methods and Techniques of Radar Recognition, Artech House, Inc., pp. 106-125, 1995.
R. E. Blahut, W. Miller and Jr. C. H. Wilcox, Radar and Sonar—Part 1, Springer—Verlag, vol. 32, pp. 1-5, 10-17, 26-29, 1991.
R. E. Kalman, “A new approach to linear filtering and prediction problems”, J. Basic Engineering, Trans. ASME Series D, vol. 82, pp. 35-45, 1960.
Per-Olof Gutman and Mordekhai Velger, “Tracking Targets Using Adaptive Kalman Filtering”, IEEE Trans. Aerospace and Electronic Systems, vol. 26, No. 5, pp. 691-699, Sep. 1990.
L. R. Rabiner, R. W. Schafer and C. M. Rader, “The Chirp z-Transform Algorithm”, IEEE Trans. Audio and Electroacoustics, vol. AU-17, No. 2, pp. 86-92, Jun. 1969.
IBM Tech. Discl. Bull. (vol. 28, No. 9; pp. 4023-4025); “Processing the Echo from Range-Dependent Multiplexed Pulses in Range-Doppler Radar”; Published Feb. 1, 1986; IBM Corp.; Armonck, NY.
IBM Tech. Discl. Bull. (vol. 36, No. 1; pp. 226-227); “Computing the Aliased Ambiguity Surface”; Published Jan. 1, 1993; IBM Corp.; Armonck, NY.
D. Lush, “Airborne Radar Analysis Using the Ambiguity Function”; Proceedings of the IEEE International Radar Conference; pp. 600-605; copyrighted in the year 1990; IEEE Pub. No. CH2882-9/90/000-0600$1.0.
F. Hlawatsch et al., “The Ambiguity Function of a Linear Signal Space and its Application to Maximum-Likelihood Range/Doppler Estimation”; copyrighted in the year 1992; IEEE Pub. No. 0-7803-0805-0/92$3.00.
A.V. Dandawate et al., “Differential delay-Doppler estimations using second and higher-order ambiguity functions,” 140 IEEE Proceedings 410-18 (Dec. 1993).
M. Rendas et al., “Ambiguity in Radar and Sonar,” 46 IEEE Transactions on Signal Processing 294-205 (Feb. 1998).
C.Y. Yin et al., “Performance Analysis of the Estimation of Time Delay and Doppler Stretch by Wideband Ambiguity Function,” IEEE Publication 0-7803-4308-5/98$10.00 452-55 (1998).
A. Dogandzic et al., “Estimating Range, Velocity, and Direction with a Radar Array,” IEEE Publication 0-7803-5041-3/99$10.00 2773-76 (1999).
W.K. Chung et al., “Pulse-Diverse Radar Waveform Design for Accurate Joint Estimation of Time Delay and Doppler Shift,” Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing 3037-40 (2000).
A. Dogandzic et al., “Cramer-Rao Bounds for Estimating Range, Velocity, and Direction with a Sensor Array,” IEEE Publication 0-7803-6339-6/00$10.00 370-74 (2000).
Misc. Prior Art Search Results (Patent Material-related search, Jul. 8, 2004; IEEE Searches, 2004).
PCT International Preliminary Examination Report for Int'l Application No. PCT/US2001/18408 completed Mar. 28, 2002.
PCT International Search Report for Int'l Application No. PCT/US2001/18408 completed Jul. 26, 2001.
EPO Communication for European Patent Application No. 01942045.4 dated May 24, 2006.
Zavarsky et al—Introduction of cross ambiguity function for elimination of crossterms in Wigner distribution of the third order, Electronics Letters, vol. 32, No. 2, Jan. 18, 1996.
Dragoman et al—Implementation of the spatial and the temporal cross-ambiguity function for waveguide fields and optical pulses, Applied Optics, vol. 38, No. 5, Optical Society of America, Feb. 10, 1999.
Simon et al—Spread Spectrum Communications Handbook, pp. 1158-1214, McGraw-Hill, Inc., 1994.
Wood et al—Tomographic time-frequency analysis and its application toward time-varying filtering and adaptive kernel design for multiple component linear-fm signals, IEEE Trans. Signal Process., vol. 42, pp. 2094-2104, Aug. 1994.
Wood et al—Linear signal synthesis using the Radon-Wigner transform, IEEE Trans. Signal Process., vol. 42, pp. 2105-2166, Aug. 1994.
Wood et al—Radon transformation of time-frequency distributions for analysis of multicomponent signals, IEEE Trans. Signal Process., vol. 42, pp. 3166-3177, Nov. 1994.
Price—A Communication Technique for Multipath Channels, 46 Proc. Inst. Rad. Eng. 555-70 (Mar. 1958).
Faux et al—Computational Geometry for Design and Manufacture, pp. 304-308, Ellis Horwood 1979.
Foley et al—Introduction to Computer Graphics, pp. 321-368, Addison-Wesley 1994.
Rogers et al—Mathematical Elements for Computer Graphics, 2ndeditio
Arikan Orhan
Gumas Donald Spyro
Ozdemir Ahmet Kemal
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