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本文对三种用于扩频接收机的LMS(最小均方值)自适应干扰抑制器的性能进行了比较.该抑制器与直接序列(DS)扩频技术相结合能更好地抑制干扰,除无判决反馈的单输入 LMS自适应干扰抑制器外,我们还对带有判决反馈的LMS自适应抑制器进行了评价,描述了误码事,分析了收敛特性,结果表明,在某些情况下,有判决反馈的自适应干扰抑制器的性能优于无判决反馈的自适应干扰抑制器.
This article compares the performance of three LMS (Minimum Mean Squares) adaptive interference suppressors designed for spread spectrum receivers that combine better suppression of interference with direct sequence (DS) In addition to the single-input LMS adaptive interference suppressor without decision feedback, we also evaluated the LMS adaptive suppressor with decision feedback, described the error events and analyzed the convergence characteristics. The results show that in some cases , The performance of the adaptive interference suppressor with decision feedback is better than the adaptive interference suppressor without decision feedback.