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Separation of cochannel signals using the parametric constant modulus algorithm

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2 Author(s)
Rao, A. ; Dept. of Electr. Eng., Rhode Island Univ., Kingston, RI, USA ; Kumaresan, R.

In an earlier paper, Rao and Kumaresan (see Proc. of the 29-th Asilomar Conf. on Sig., Sys., and Comp., 1995) proposed a new algorithm, called the parametric constant modulus algorithm (PCMA) to demodulate noiseless, synthetic as well as real-world, cochannel FM signals. They extend the PCMA to develop two new procedures. The first one addresses the problem of reserving two closely spaced noisy sinewaves (from a short data record). The second algorithm is applied to estimate the phase parameters of two superimposed noisy chirp signals; both algorithm's performance are compared with the Cramer-Rao bounds. The techniques described are of interest in wireless/military communications in the context of carrier frequency and Doppler estimation

Published in:

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on  (Volume:5 )

Date of Conference:

7-10 May 1996