chirp-Fourier

说明：  针对NL-Mreans算法运算时间较长的问题，提出了优化，大大缩短了时间。(To solve the problem of long operation time of NL-Means algorithm, an optimization method is proposed, which greatly shortens the time.)

收集的GA的一些源程序，包括交叉选择变异之类的一些。可以在MATLAB下直接使用的。学习遗传算法的可以看看。(GA collected some of the source, including cross-choice variation of such. MATLAB under the direct use. Learning Genetic Algorithm can see.)

基于matlab的卡方检验，内容很详细。(The chi-square test based on matlab, the content is very detailed.)

Trans. Funcion de transferencia. Filtro pasa bajas. MATLAB. Trans. Funcion de transferencia. Filtro pasa bajas. MATLAB. Trans. Funcion de transferencia. Filtro pasa bajas. MATLAB. Trans. Funcion de transferencia. Filtro pasa bajas. MATLAB.

Modulation test for OFDM : This is a set of five (5) codes about COFDM (Coded Orthogonal Frequency Division Multiplexing) and coding schemes such as Convolutional, BCH, Reed Solomon (RS) and Low Density Parity Check (LDPC). The study uses an OFDM signal over an AWGN Channel with white Gaussian noise model, and calculate the Bit Error Rate wich is plotted.

将原图像用bior四层分解，之后弱化低频分量，重构原图，以得到细节。(use wavelet function(bior) to enhance the detail of the image,then reconstuct)

generation of wideband and high dynamic range analog signal for area-efficient MADBIST, especially for the on-chip testing of wireless communication IF digitizing sigma–delta modulator chip. Via increasing the order of the one-bit bandpass sigma–delta modulation algorithm up to 12 and using finite repetitious bitstream approximating scheme, it can achieve great improvements in signal bandwidth instead of purity at the cost of very little hardware overhead. Another contribution in this work is to provide the theoretical analysis of the reconstructed signal degradation due to harmonic distortion and clock jitter. Such on-chip analog stimulus generation scheme is especially fit for IF digitizing bandpass sigma–delta modulator chip s production-time testing and in-the-field diagnostics. The technique can also be extended to mixed-signal communication SoC built-in-self-test.

基于Simulink的内插器的高效FIR多相结构实现仿真(Efficient FIR interpolator multiphase structure to realize the simulation based on Simulink)

先进pid matlab 仿真 刘金琨 第版 第一章程序 pid matlab simulink liujinkunc hap01_18.rar

说明：  轴承滚动体故障诊断代码，内含频率计算，大家一起学习(Rolling Element Bearing Fault Diagnosis code, containing the frequency calculation, everyone learning together)