摘要
由线性反馈移位寄存器产生出周期为ｐ＝２^（１１）－１的伪随机白噪声，利用快速傅里叶交换及其逆变换去除了其中低于３５０Ｈｚ和高于５５０Ｈｚ的分量。
White pseudo-random noise with period P=211-1 is generated by linear feedback shift registers. After components lower than 350 Hz and higher than 550 Hz in the whife noise being deldted by FFT and IFFT, pseudo-random signal with bandwidth between. 350 Hz and 550 Hz is obtained.
出处
《南京邮电学院学报》
北大核心
1994年第4期87-91,共5页
Journal of Nanjing University of Posts and Telecommunications(Natural Science)
关键词
伪随机信号
白噪声
傅里叶变换
微处理机
pseudo-random signal, white noise, fast Fourier transform, single-chip microcomputer
