摘要
在设计某些随机信号模型的数字滤波器时,希望它在某固定频率λ_θ处有最大功率谱密度,同时又希望总功率最小.本文给出了这时参数应满足的条件,并研究了有关功率谱密度的极值问题.
It is hoped that the power spectral density at a fixed frequency λ_0 is maximum and the total power is minimum for designing the digital filter of some random signal models. The conditions that they must be satisfied by the parameters of some random signal models are given. The extreme value of power spectral density is discussed.
出处
《南京邮电学院学报》
北大核心
1990年第4期91-96,共6页
Journal of Nanjing University of Posts and Telecommunications(Natural Science)
关键词
功率谱密度
数字滤波器
数字信号
Time series analysis
Power spectral density
Extreme value
