摘要
明确给出了信号幅值密度分布函数的定义。认为 ,建立被测时间域信号在统计学意义上的信号幅值密度分布函数 ,可能对认识由非稳定性信号所反映的检测对象运动本质有所帮助。通过对二维信号幅值密度分布函数及相关性的研究发现 ,基于离散信号或连续信号的采样信号 ,利用函数的相关性分析对于识别信号的变异性、提取低信噪比情况下的微弱周期信号。
The function on signal amplitude density distribution is clearly defined. It is thought that the time relation function based on the statistics may help to know the moving process of the tested object. On basis of dispersed signal or the continuous seasonal sampling signal, it have been found thrown the research of 2D signal amplitude density distribution function and signal resemblance, that these studies on the signal resemblance have some potential applied with these faces: identifying the variability of signal, taking out the faint seasonal signal or the eigenvector of the signal and making out the jumping step of high frequency signal.
出处
《中国测试技术》
CAS
2004年第5期42-45,共4页
CHINA MEASUREMENT & TESTING TECHNOLOGY
