该文主要介绍了几种时延估计器的原理和方法,并且重点介绍了自适相位估计器、自适应线谱增强器的原理和方法以及它们在时延估计中的应用。在以声呐脉冲模块的三元非对称应用背景下,介绍了自适相位估计器、自适应线谱增强器的应用方法及其流程,这一方法也可以很方便的应用在其它场合。文章的最后给出了计算机仿真及实验室内利用模拟器进行实验的实验结果,在实验中,自适应时延差估计的方法表现出了优良的性能,而且具有很强的鲁棒性,实验数据充分证明了理论研究和仿真研究的正确性1。关键词:时延估计 自适应相位估计器 自适应线谱增强(ALE)Abstract: In this paper, principles and methods of several time delay estimators, adaptivephase estimator and adaptive linear enhancer and their application in delay estimation areintroduced in this paper. As an example of our time delay estimation in applications, orientateand ranging model of three asymmetrical elements is very effective and typical. Theapplication flow chart of the adaptive phase estimator and ALE, as well as the simulation andexperimental results are also shown. In the experiments the adaptive method performance ofdelay estimation is excellent.Key words: delay estimation, adaptive phase estimator, adaptive linear enhancer
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