Separation of cochannel signals using the parametric constant modulus algorithm

Document Type

Conference Proceeding

Date of Original Version



In an earlier paper, we had proposed a new algorithm, called the Parametric Constant Modulus Algorithm (PCMA) to demodulate noiseless, synthetic as well as real-world, cochannel FM signals. Here, we extend the PCMA to develop two new procedures. The first one addresses the problem of resolving two closely spaced noisy sinewaves (from a short data record). The second algorithm is applied to estimate phase parameters of two superimposed noisy chirp signals; both algorithm's performances 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.

Publication Title, e.g., Journal

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings



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