Direction-finding for multiple cochannel sources

Details Direction-finding for multiple cochannel sources Direction-finding for multiple cochannel sources

2006-10-24

2006-10-24

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Utilizing correlation techniques

C342S417000, C342S451000

Reexamination Certificate

active

07126533

ABSTRACT:
Techniques for determining the angles of arrival of multiple simultaneous cochannel sources using only a single RF receiver sampling and downconversion channel is disclosed. This is accomplished by sequentially forming several known mixtures of multiple antenna signals in the RF domain prior to downconversion and digitization. Angle of arrival information is then recovered through the application of higher order statistics and subspace fitting techniques. The same principles can be applied to other P-element receiver arrays (e.g., acoustical receiver array).

REFERENCES:
patent: 4992796 (1991-02-01), Apostolos
patent: 5426438 (1995-06-01), Peavey et al.
patent: 6018317 (2000-01-01), Dogan et al.
See, Chong-Meng Samson, “A Single Channel Approach to High Resolution Direction Finding and Beamforming”, IEEE, 2003, pp. V-217-V-220.
See, Chong-Meng Samson, “High Resolution DF With A Single Channel Receiver”, IEEE, 2001, pp. 520-523.
Mendel, Jerry M., “Tutorial on Higher-Order Statistics (Spectra) in Signal Processing and System Theory: Theoretical Results and Some Applications”, IEEE, Mar. 3, 1991, pp. 278-305, vol. 79, No. 3.
Nikias, Chrysostomos L. et al., “Signal Processing with Higher-Order Spectra”, IEEE Signal Processing Magazine, Jul. 1993, pp. 10-37.
Martone, M., “On MMSE Real-Time Antenna Array Processing Using Fourth-Order Statistics in the US Cellular TDMA System”, IEEE, Oct. 8, 1998, pp. 1396-1410, vol. 16, No. 8.
Yao, Minli et al. “Direction Finding For Multiuser Correlated Signals Based on Spatial Signature Estimation in Cyclic Cumulant Domain”, IEEE, 1999, pp. IV-443-IV-446.
PCT Search Report dated Mar. 9, 2004 of Patent Application No. PCT/US03/20679 filed Jul. 1, 2003.

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