Performance and configuration of M‐CMA (Modified Constant Modulus Algorithm) adaptive array using polyphase filters
Satoshi Denno, Takashi Ohira · Electronics and Communications in Japan (Part I Communications) · 2002
Abstract As a way to realize an adaptive array of small size, low cost, and low power consumption, there exists a configuration method combining analog signal processing and digital signal processing. M‐CMA has been proposed as a control algorithm for such an approach. However, when this approach is applied to an actual communication system, there arises the problem that the narrow‐band filter in the receiver prevents M‐CMA from converging to the desired solution. In this paper, in order to effectively operate an M‐CMA adaptive array in the presence of a narrow‐band filter, a configuration is proposed in which polyphase filters are used as narrow‐band filters. Its superior interference suppression capability is confirmed by a theoretical analysis and computer simulation. © 2002 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 85(12): 53–64, 2002; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/ecja.10021