chap9

its a project on cdma

已知一个LTI系统的差分方程为： y[n]-1.143*y[n-1]+0.4128*y[n-2]=0.0675*x[n]+0.1349*x[n-1]+0.0675*x[n-2] 初始条件y(-1)=1,y(-2)=2，输入x(n)=u(n)，计算系统的零输入响应 (known LTI system of a differential equation : y [n]-1.143* y [n-1] 0.4128* y [n-2] x = 0.0675* 0.1349 [n]* x [n-1] 0.0675* x [n-2] initial conditions y (1) = 1, y (2) = 2, input x (n) = u (n), we calculate the zero input response)

To find FFT, SNR and SFDR

Systemidentificcation，系统辨识 (Systemidentificcation, system identification)

Buck converter simulation

this is .mdl file for svpwm(space vector pwm)

DCT变换的matlab源代码。适合用作特征提取的预处理方法来使用。(DCT transform matlab source code. Suitable for feature extraction preprocessing method to use.)

MIMO空时信道模型建模源程序的matlab程序(MIMO space-time channel model in matlab source modeling procedures)

说明：  对已知房价数据做二次拟合，从而得出曲线方程，对做未来房价的粗略预测(Known to do on the secondary price data fitting curve equation to obtain, so the future price of crude forecast)

本程序的性能已经达到较高水平，采用波束成形技术的BER计算，有详细的注释，可以得到很精确的幅值、频率、相位估计。( The performance of the program has reached a high level, By applying the beam forming technology of BER There are detailed notes, You can get a very accurate amplitude, frequency, phase estimation.)