radarpingbao

说明：  5. 在三条径的瑞利信道中，对于直接序列扩频： (1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法，接收机分别采用等均益合并、最大比合并。用Simulink进行仿真，测量BPSK的误码率性能，画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线，请解释在误码率为0.01时，两种合并方式所表现的不同的物理意义。 (2) 设频率已经同步，请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法，用Simulink进行仿真(自己编写代码S-Function方式)，分析所设计方案的时间同步精度，画出比特信噪比与捕获概率的关系曲线。 (3) 设时间已经同步，请设计DS-CDMA一种具体的频率同步方法，用Simulink进行仿真(自己编写代码S-Function方式)，画出比特信噪比与频率同步误差的关系曲线。 (5 In the three path Rayleigh channel, for direct sequence spread spectrum: (1) Please design a specific DS-CDMA code division guide-assisted channel estimation, receiver, etc were used to benefit the merger, the maximum ratio combining. With the Simulink simulation, BPSK BER performance measure, draw-bit signal to noise ratio and channel estimation mean square error of the curve, draw the signal to noise ratio and bit error rate curve, please explain in bit error rate 0.01, the two methods are combined performance of the different physical meaning. (2) frequency has been set up synchronization, a specific design of DS-CDMA single-stop sliding correlation method of time synchronization, simulation with Simulink (S-Function code their own way), analyze the design of time synchronization accuracy, draw bit signal to noise ratio and capture probability curve. (3) set time has been synchronized, a specific design of DS-CDMA frequency synchronization method, simulation using Simulink ()

OFDM系统仿真 加入循环前缀 加燥 绘制误码率能量谱等(OFDM system simulation by adding cyclic prefix and drying to draw the error rate energy spectrum, etc.)

Real time windows target with step function

说明：  本文着重描述了运用MATLAB命令将M文件翻译为C语言程序，并修改为可直接调用的C语言函数的方法，使用该方法所需要注意的方法局限性和MATLAB版本差异的影响。运用该方法将能够使C语言能直接使用MATLAB当中已经完成的数学计算功能，大大扩充了C语言的数学计算功能和开发效率。(This paper describes the use of MATLAB M ordered the translation of documents for the C Programming Language, and revised to directly call the C language function, use of the method needed to limitations of the method and MATLAB version of the impact of differences. Using this method will enable C language can be used directly MATLAB which has been completed arithmetic function, greatly expanded the C language arithmetic functions and development efficiency.)

A simple binary Ga for optimization.

说明：  线性预测算法 输入：阶数p，快拍数据协方差矩阵R，观察范围内各方向导向矢量，三维矩阵phiyz。 输出：线性预测谱估计矩阵P。(Linear prediction algorithm Input: the order of p, snapshot data covariance matrix R, observe the direction in the range of steering vector, three-dimensional matrix phiyz. Output: linear prediction spectral estimation matrix P.)

将像素数据写成一幅PPM格式的图片，像素数据为灰度图的数据，附件里有一个图像数据，宽150，高90，共100帧(The data will be written in a grayscale image PPM format, the program is written in matlab, the file contains a grayscale data.)

本程序可以用于解算各个扫面点的距离,以得到相应的座标点(compute the distance of scan point)

说明：  用于工业机器人轨迹规划，主要是蚁群算法的matlab实现。(For trajectory planning of industrial robots.)

清华大学数学实验之数值积分幻灯片与MAT源码(Tsinghua University, numerical integration of the math test slides with the MAT-source)