Separation of cochannel signals using the parametric constant modulus algorithm
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.
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Rao, Ashwin, and Ramdas Kumaresan. "Separation of cochannel signals using the parametric constant modulus algorithm." ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings 5, (1996): 2686-2689. https://digitalcommons.uri.edu/ele_facpubs/678