地震资料处理中带通滤波MATLAB源码程序。能根据需要选择滤波带宽。-Seismic data processing in the band-pass filtering MATLAB source code program. Need to select the bandwidth according to filtering.

数字图像处理中的滤波和傅里叶压缩，包括理想低通滤波器，巴特沃茨高通滤波器，高斯带通滤波器，高斯带阻滤波器，FFT图像压缩。附原图像和处理后的图像截图。-Digital image processing in filtering and Fourier compression, including the design of an ideal low-pass filter, design Batewoci high-pass filter, bandpass filter design Gaus

各种频域的滤波函数，包括低通，高通，带通，同态滤波。-Various frequency domain filter function, including low-pass, high pass, band-pass, homomorphic filtering.

％ y=filter(sig,fmin,fmax) ％ 对信号进行理想滤波，可完成低通，带通 ％ sig为被滤波信号 ％ fmin为下限频率，当fmin为0时为低通滤波器，当fmin>0时，为带通滤波器 ％ fmax为上限频率，fmax>fmin ％ fs为信号的采样频率 ％ y为经过滤波后的信号 -％ Y = filter (sig, fmin, fmax)％ of the ideal signal filtering, to be com

PN码在BPSK调制下基带和频带的同步,包括带通滤波，低通滤波，pn码产生(PN code in BPSK modulation baseband and frequency band synchronization, including band-pass filtering, low-pass filtering, PN code generation)