correlation sequences中文是什么意思

中文翻译手机版

Some characters and fourier spectrum characters of the almost perfect autocorrelation sequence pairs are discussed , and the necessary conditions of existences of the almost perfect auto - correlation sequence pairs are given
其次，提出了几乎最佳自相关序列偶的理论，它是几乎最佳自相关序列的深入和发展，探讨了它的性质，谱特性，存在的必要条件。
There are difficulties in noisy speech recognition , especially low signal - to - noise rations are more difficult . this paper describes briefly six methods for speaker - dependent noisy speech recognition isolated words . they are lpc prediction error method , one - side auto - correlation sequence lpc , acoustic front end processing , canonical correlation based on compensation method , combination of features method and increase of poles method . the experimental results show that all the six techniques can improve effectively noisy speech recognition , and the best noisy speech recognition rate is above 80 % when snr 0db
它们是：线性预测误差法，单边自相关线性预测法，语音前端声学处理法，正则相关分析的谱变换补偿方法，特征综合法和同模极点增加法。实验结果表明，这6种方法都有效地提高了噪声环境中语音识别率，其中较好的方法在强噪声环境中信噪比为0db的语音识别率达到80 %以上，为信噪比较低的噪声环境中自动语音识别展现了美好前景。

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