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一、引言线性预测是一般动态系统特性的一种数学分析方法.最近,用线性预测分析语音引起了人们的注意.利用线性预测技术的预测编码是一种高效编码.由于其仅对表征语言波的有关参数进行编码,因此,在保证语言传输质量的基础上,能极大地压缩频带,并且还有加密方便的优点.目前,国内外对适应性预测编码进行了广泛的研究,本文讨论预测编码中用到的协方差方程及其解法.
I. INTRODUCTION Linear prediction is a kind of mathematical analysis method of general dynamic system characteristics. Recently, speech analysis using linear prediction has attracted people’s attention. Prediction coding using linear prediction is a kind of efficient coding. Therefore, it can greatly compress the frequency band based on the quality of the language transmission and has the advantage of easy encryption.At present, extensive researches on adaptive predictive coding have been carried out at home and abroad, The Covariance Equation and Its Solution.