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A frequency domain time-dependent adaptive filter for interference rejection

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3 Author(s)
J. H. Reed ; Dept. of Electr. Eng. & Comput. Sci., California Univ., Davis, CA, USA ; A. A. Quilici ; T. C. Hsia

The authors examine a type of adaptive filter called a time-dependent adaptive filter (TDAF). A TDAF can effectively deal with the cyclostationary nature of communication signals by changing periodically. It achieves a smaller mean-square error than conventional filter for cyclostationary signals. A frequency-domain TDAF is investigated, and it is shown that it is especially effective for interference rejection applications. Simulation results are presented, showing how cochannel QPSK signals can be separated.<>

Published in:

Military Communications Conference, 1988. MILCOM 88, Conference record. 21st Century Military Communications - What's Possible? 1988 IEEE

Date of Conference:

23-26 Oct. 1988