dingwei

说明：  QPSK通过瑞利信道的MATLAB仿真 包括高斯白噪声和瑞丽衰减信道(QPSK_Rayleigh fading Both the AWGN channel and Rayleigh fading channel)

说明：  计算两组数据的皮尔逊相关系数，取值位于-1到1之间，绝对值越大，线性相关性越好。(Calculate the Pearson correlation coefficient between the two sets of data)

说明：  设计一个巴特沃兹数字低通滤波器，其技术指标为：3dB带宽为0.2π，阻带截止频率为0.3π，通带纹波为1dB，阻带衰减大于30dB，采样间隔T=10ms。 1）采用冲激响应不变法； 2）采用双线性变换法设计； 3）采用FIR的窗函数（Hanning窗、Hamming窗或Blackman窗）设计。(A Butterworth digital low-pass filter is designed. Its technical specifications are: 3 dB bandwidth is 0.2 pi, stopband cut-off frequency is 0.3 pi, passband ripple is 1 dB, stopband attenuation is more than 30 dB, sampling interval T=10 Ms. 1) Impulse response invariance method is adopted. 2) Design by bilinear transformation method; 3) FIR window function (Hanning window, Hamming window or Blackman window) is used to design.)

次程序用来仿真线性调频脉冲下的一维距离像，可以对比压缩前后的目标回波信号(Second program is used to simulate the next chirp like a one-dimensional distance, you can compare before and after the target echo signal compression)

说明：  火车的17自由度动力学程序，值得深入研究(The 17-degree-of-freedom dynamics program of the train is worthy of further study)

关于超宽带多用户检测的大家可看看，很好的程序(on Ultra-Wideband Multi-User Detection you can see, very good procedures)

图片合成视频，简单的一个脚本 将图片合成视频(Image conversion video)

单载波系统在高斯白噪声和多径信道条件下的仿真——加入独立字导频且采用最小二乘信道估计(Single carrier system in gaussian white noise and multipath channel under the condition of the simulation to join the independent word frequency and the least square estimation channel )

说明：  CPMCD是一种基于变量预测模型的模式识别方法。(Cpmcd is a pattern recognition method based on variable prediction model.)

波数域成像算法，经验证是一个很好的算法，对目标的成像效果较好(Wave number domain imaging algorithm, the experience card is a good algorithm, on the target better imaging)