chua2

用遗传算法优化BP神经网络的Matlab编程实例(Using genetic algorithm BP neural network programming examples Matlab)

finite difference time domain 2d code

Methods to model communication channel

Single preceptron Easy example of single perceptron which learn to recognize logical function AND, OR, and so on :)

a modified version of henon algorithm

数字滤波仿真程序，供大家参考！希望对大家学习有用！(digital filter simulation program, for your reference! We hope to learn useful!)

说明：  读取sac数据子函数,再处理中直接调用该函数即可达到读取目的。(the code of read .sac files.)

最近用Mega128写了一个128点FFT程序，浮点运算，加汉宁窗。由于窗函数和旋转因子通过查表得到，所以速度还可以，程序中给的初值是通过高速AD采集的20KHz正弦信号。计算结果与Matlab的FFT函数得到的结果相同。 (Mega128 recently wrote a 128-point FFT procedures, floating-point operations, Hanning window. Since the window function and the twiddle factor look-up table has been adopted, so the speed can also be, the initial value to the process through high-speed AD collected 20KHz sinusoidal signal. The calculation results with the Matlab)

说明：  随机信号的提取，通过matlab实现微弱信号的提取(Random signal extraction, through matlab to achieve the extraction of weak signal)

QPSK仿真程序，调制解调，画出不同信噪比下的曲线。(QPSK simulation program, modulation and demodulation, draw curves under different signal-to-noise ratio.)