該文主要介紹了幾種時(shí)延估計(jì)器的原理和方法，并且重點(diǎn)介紹了自適相位估計(jì)器、自
適應(yīng)線譜增強(qiáng)器的原理和方法以及它們?cè)跁r(shí)延估計(jì)中的應(yīng)用。在以聲吶脈沖模塊的三元非對(duì)稱應(yīng)用背景下，介紹了自適相位估計(jì)器、自適應(yīng)線譜增強(qiáng)器的應(yīng)用方法及其流程，這一方法也可以很方便的應(yīng)用在其它場(chǎng)合。文章的最后給出了計(jì)算機(jī)仿真及實(shí)驗(yàn)室內(nèi)利用模擬器進(jìn)行實(shí)驗(yàn)的實(shí)驗(yàn)結(jié)果，在實(shí)驗(yàn)中，自適應(yīng)時(shí)延差估計(jì)的方法表現(xiàn)出了優(yōu)良的性能，而且具有很強(qiáng)的魯棒性，實(shí)驗(yàn)數(shù)據(jù)充分證明了理論研究和仿真研究的正確性1。
關(guān)鍵詞：時(shí)延估計(jì) 自適應(yīng)相位估計(jì)器 自適應(yīng)線譜增強(qiáng)(ALE)
Abstract: In this paper, principles and methods of several time delay estimators, adaptive
phase estimator and adaptive linear enhancer and their application in delay estimation are
introduced in this paper. As an example of our time delay estimation in applications, orientate
and ranging model of three asymmetrical elements is very effective and typical. The
application flow chart of the adaptive phase estimator and ALE, as well as the simulation and
experimental results are also shown. In the experiments the adaptive method performance of
delay estimation is excellent.
Key words: delay estimation, adaptive phase estimator, adaptive linear enhancer