失真信号采样技术研究  

Study of the Technique for Acquiring the Distorted Signal

作　　者：王希东[1] 宋剑波[1] 任伟[1] 

机构地区：[1]信息工程技术研究所,北京100249

出　　处：《电子测量与仪器学报》2006年第1期85-88,共4页Journal of Electronic Measurement and Instrumentation

摘　　要：测量信号失真必须全面获取信号中包含的失真信息。本论文分析了正弦信号采样的特殊性,并与等相位密度采样技术相结合,确定了失真信号的采样原则并给出了实施方法,使获取的数字序列为最大熵序列,从而保证了数据采集的精度。It＇s necessary to acquire the distorting information of the tested signal completely when the signal distortion is tested. In this paper, the particularity to acquire sine wave is analysed. Furthermore, by adopting the technique of data acquiring with uniform Phase Density, the principle for acquiring distorted signal is ascertained, and how to put the principle in practice is also made out. As a result, the digital data being acquired are the sequence which entropy is maximum, and the precision of data acquiring is ensured.

关 键 词：信号失真度 最大熵序列 失真信号采样 

分 类 号：TN722.75[电子电信—电路与系统] X832.01[环境科学与工程—环境工程]