Short Noisy Signal Analysis on the Basis of Sign DM

W. Pogribny, I. Rozhankivsky, T. Leszczynski
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Abstract

In this paper for increasing an efficiency of the real time correlation-spectral analysis of short noisy signals the use of signal representation in sign delta modulation (SignDM) format has been proposed. The SignDM codes are specified by comparing the values of differences between signal samples in PCM format with a differential zone which is defined a'priori. These two bit codes good reflect the signal changes and are suitable for that analysis as well. This paper presents fast and exact algorithms of the short noisy signal analysis on the basis of the SignDM correlation analysis (CA) in connection with the spectral analysis and appropriate mathematical operations, as well as results of resolution study of that analysis by signal various initial phases
基于信号DM的短噪声信号分析
为了提高短噪声信号实时相关频谱分析的效率,提出了采用符号增量调制(SignDM)格式的信号表示。SignDM编码是通过比较PCM格式的信号样本之间的差值和先验定义的差分区来指定的。这两个比特码很好地反映了信号的变化,也适用于该分析。本文在SignDM相关分析(CA)的基础上,结合频谱分析和适当的数学运算,提出了短噪声信号分析的快速精确算法,并给出了信号不同初始相位的解析研究结果
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