In the presence of narrow-band interference, the performance of PN spread-spectrum communication systems can he improved by using various interference rejection filters. In this paper, both prediction error filters and transversal filters with two-sided taps are used and the performance of each is analyzed. Analytic expressions for the signal-to-noise ratio improvement factors are obtained. If the frequency of the jamming tone is near the carrier frequency of the spread-spectrum signal, the performance of the transversal filter with two-sided taps is better than that of the prediction error filter with the same number of taps.
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Li et al. (1982) studied this question.
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