结果表明：变长自适应判决反馈均衡器在前馈滤波器长度收敛到一定的范围内、判决延迟保持一定的情况下，反馈长度并不是越长越好。

The results show that a longer feedback filter tap-length is not necessarily better when the feedforward filter tap-length converges to a certain range and the decision delay maintains a fixed value.

youdao

着重介绍采用最小均方算法的横向滤波器、判决反馈均衡器及盲均衡器，讨论了HDTV中采用的不同均衡方案及其均衡性能。

The emphasis is laid on the principles of LMS transversal filter, decision feedback equalizer and blind equalizer. Different equalizing schemes and their performance used in HDTV are discussed.

youdao