摘要
以线性调频脉冲信号作被研电网络的激励 ,采集激励和响应信号由微机进行分析计算 ,可实现对频响函数的测量。改将频带分段 ,分别设置激励和采样率后实施测量 。
A way of measuring frequency response function of networks is introduced,using linear frequency modulated pulses as excitation,and using computer to analyze the result after sampling the exciting and response signal.And it's found that the result can be improved if dividing the whole band into small sections,and setting corresponding sample rate and providing excitation respectively.
出处
《测控技术》
CSCD
2003年第8期11-13,共3页
Measurement & Control Technology
关键词
CHIRP信号
扫频
时-频分析
频响函数
虚拟仪器
chirp signal
frequency sweep
time frequency analysis
frequency response function(FRF)
virtual instrument
