DFT_FFT_Times

target image program in zip file

设计一个低通数字滤波器，满足如下设计指标： 通带截止频率：0.2pi，通带波动：1dB 阻带截止频率：0.3pi，阻带衰减：15dB 要求：分别采用巴特沃斯、切比雪夫Ⅰ型、切比雪夫Ⅱ型和椭圆滤波器原型进行设 计，比较各种设计的阶数、实际阻带衰减，分析实验结果 (Design a low pass digital filters that meet the following design specifications: passband cutoff frequency: 0.2pi, pass-band fluctuations: 1dB stopband cutoff frequency: 0.3pi, stop-band attenuation: 15dB requirements: respectively Butterworth, Chebyshev Ⅰ, Ⅱ and Chebyshev prototype elliptic filter design, comparing the order of the design, the actual stop-band attenuation, analysis of experimental results)

这个仿真程序用于实现DS-CDMA通信系统仿真(The simulation program used to implement DS-CDMA Communication System Simulation)

对比分析lv-music和极化esprit算法q-music算法的估计性能(Comparison of lv-music and Polarization esprit algorithm q-music algorithm to estimate the performance)

利用MATLAB编制的绘图程序，对利用自己开发绘图界面很有启发(using MATLAB based mapping procedures, the development of the use of their graphics interface is very enlightening)

常微分方程的初值问题 matlab函数。。。 (The initial value problems of ordinary differential equations, matlab functions.. )

说明：  实现对小孔的高斯滤波，边沿提取和半径测量(Small holes to achieve the Gaussian filtering, edge extraction and radius measurement)

matlab6.5辅助系统与开发设计，非常不错的(matlab6.5 auxiliary systems design and development, very good)

应用于matlab支持向量机svm的工具箱(Applies to support vector machine SVM matlab toolbox)

本代码是关于多天线技术空时块编码的通信系统仿真源程序，其中包括QPSK调制，QPSK解调，FFT,IFFT，STBC等模块,并给出误码率计算和性能仿真图。(The code is on the multi-antenna space-time block coding techniques of communication system simulation source code, including QPSK modulation, QPSK demodulation, FFT, IFFT, STBC and other modules, and gives the bit error rate and performance simulation map.)