通信中的盲均衡技术

Blind Equalization Technique in the Communication

影响通信质量的码间干扰需要均衡技术来解决,盲均衡优于传统自适应均衡之处在于其不需要用训练序列,并且通信中断后能自动恢复正常工作。着重介绍了盲均衡技术的原理及其算法发展过程,并结合盲均衡技术的最新研究进展,指出了以后的研究方向。盲均衡的实际应用对于提高通信质量具有十分重要的意义,如何将新理论应用于盲均衡技术,寻找适合实际系统应用的盲均衡算法是今后的重要任务。

In the modern communication system,the intersymbol interference is one of the main interferences which influence the quality of communication. In order to enhance the performance of communications,equalization technique must be adapted at the receiver. Blind equalization is an adaptive equalization technique without the aid of training sequences. This paper gives a review of the development of blind equalization technique. The problems and the developing orientations of the research on blind equalizations are also discussed.