seq_train

MATLAB下用Matched-z 变换设计低通，高通，带通，带阻数字滤波器设计(Using MATLAB m-file to design LP, HP, BP and BS fitlers by matched-z transformation.)

这是一个用matlab实现遗传算法的程序，实例为深基坑桩锚支护结构的优化(THIS IS A MATLAB-BASED GA PROCEDURE.)

等间距线性阵列，阵元数M=8，阵元间距d= λ /2，等幅加权，目标方位φr =0°。产生空间白噪声矢量（复高斯分布）。 设阵列信号矢量元素s(m)=exp[j mψr]，其信号幅度为1，该阵元接收机附加的高斯噪声为n(m)=nmr+jnmi，其中实虚部均为独立同分布N(0, σ2)的高斯随机数，则该通道合成信号x(m)=s(m) + n(m)，其中信噪比为： SNR = 10 lg[1/(2σ2)] = – 3 – 10 lg(σ2) (dB) (The spacing of the linear array, and the array element number M = 8, the array element spacing d = λ/2, equal amplitude weighted target azimuth φR = 0. Space generated white noise vector (complex Gaussian distribution). Let array signal vector elements s (m) = exp [j mψr], the signal amplitude, the element receiver additional Gaussian noise n (m) = nmr+jnmi which the real and imaginary parts are independent and identically distributed N ( Gaussian random numbers of 0, σ2), the channel the synthesis signal x (m) = s (m) the PPLS n (m), where SNR is: SNR = 10 lg [1/(2σ2)] =- 3- 10 lg (σ2) (dB))

对于Ldpc码，测试其校验矩阵H有无4环的存在，避免因为存在4环影响性能(For Ldpc code, test whether the check matrix H of the existence of loop 4, loop 4 to avoid because of the impact of performance)

gabor是将图像转换成gabor特征，增强系统鲁棒性，使其不易受外界条件影响；norm是将图像的灰度值统一归一到一个范围内，便于同等使用图像。(gabor gabor is a feature to convert images to enhance the system robustness to make it less susceptible to external conditions affect norm is a uniform gray value image normalized 1-1 range, the same easy to use images.)

均匀完全弹性介质中声波传播的正演模拟,采用标准交错网格算法，SPML作为吸收边界(the propagation simulation of acoustic wave in uniform and purely elastic medium. we use SPML as the boundary conditions.)

雷达的信号处理 恒虚警检测 MTD 分快慢门限(Radar signal processing MTD CFAR detection threshold of speed)

基于C语言的PID功能实现，用c语言编写的PID算法(PID function based on the C language implementation)

AVS Speech Code this code describe AVS sppech code in Matlab

说明：  生成随机伪码，使用PMF_FFT方法捕获(Generate random pseudo-code, using PMF_FFT method to capture)