摘要
为了获得水声信号稳健的瞬时频率值,本文综合相位差分法和M-估计方法对瞬时频率进行估计,获得理想的估计值。通过计算机仿真分析,给出采用该方法获得的瞬时频率估计值,并与真值进行对比。
For get mod instantaneous frequency from underwater acoustic signal,the paper estimate instantaneous frequency and get perfect estimate result by colligating the difference method and the M-estimate method.By emulation mode with computer,present instantaneous frequency estimate and contrast it with the truth value.
出处
《舰船科学技术》
2011年第10期94-96,共3页
Ship Science and Technology
关键词
瞬时频率
差分
M估-计
权函数
instantaneous frequency
difference
M-estimate
weight function
