qiugen

本课件讲解了脉冲压缩雷达的概念和原理，简明清晰，适合于初学者。(The courseware explain the concepts and principles of pulse compression radar, concise and clear, suitable for beginners.)

说明：  kmeans算法，用于聚类，简单matlabcode(kmeans code)

matlab 读取超声采集DAQ数据，主要用于波束合成，处理row数据(data reading program)

利用matlab制作红色小球沿一条封闭螺线运动的实时动画，对制作动画很有启发性(Matlab produced using the red ball along a closed spiral movement in real-time animation, the animation was very instructive)

this gives the basic idea on the placement of capacitor in distribution system.the allocation of capacitor reduces the power losses in the system.

实验指导　低通采样定理实验 FFT频谱分析实验 IIR滤波器设计实验 窗函数法FIR滤波器设计 频率采样法FIR滤波器设计实验(Experimental guide low-pass sampling theorem FFT spectrum analysis experiment experiment experiment IIR Filter Design Window Function FIR filter design frequency sampling FIR filter design experiment)

SPSA for design of an attentional strategy design

wav格式的音频中实现水印的嵌入与提取 由现成的软件超级MP3转换大师V1.20把mp3->wav 然后再由MATLAB做wav水印嵌入 (wav audio format to achieve watermark embedding and extraction of off-the-shelf software from Super Master V1.20 to MP3 conversion mp3-> wav then wav watermark embedding MATLAB to do)

1. 程序中Turbo译码采用了MAP,LOG-MAP，和MAX-LOG-MAP三种算法。 2. 以xxx开头的四个mat文件是四种给定的Turbo码在译码时用到的参数，保存下来的目的是 加快仿真的速度，如果你所仿真的Turbo码不是程序中列出的任意一种，你可以通过函数 trellis来生成自己的相关参数。 3. 程序支持1/2和1/3两种码率的Turbo码，其中1/2码率的Turbo码通过矩阵[1 0 0 1]打 孔得到。在译码时通过对打孔位置添0恢复成1/3码率的码字。 4. 程序中的信噪比表示Eb/N0，通过此参数求得N0，对发送信号进行加噪。(1 program in Turbo decoding using the MAP, the LOG-MAP, and three kinds of the MAX-LOG-MAP algorithm.)

采用DPCA检查运动目标，首先产生SAR回波，采用DPCA方法，对回波中包含的运动目标进行检测(The DPCA Check the moving target, first of all to produce the SAR echo, the use of the DPCA method, the detection of moving targets contained in the echo)