一种频域时域自适应干扰抑制滤波器

军事通信技术 Pub Date : 1988-10-23 DOI:10.1109/MILCOM.1988.13421

Jeffrey H. Reed, A. A. Quilici, T. Hsia

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引用次数: 13

摘要

作者研究了一种称为时间相关自适应滤波器(TDAF)的自适应滤波器。TDAF可以通过周期性变化有效地处理通信信号的周期平稳特性。对于周期平稳信号，它比传统的滤波器具有更小的均方误差。研究了一种频域TDAF，结果表明它在抑制干扰方面特别有效。仿真结果显示了如何分离共信道QPSK信号。

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A frequency domain time-dependent adaptive filter for interference rejection

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.<>

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来源期刊

军事通信技术

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2434