shuzixinhaochuli

主要讲述了matlab软件在自动控制中应用，利用matlab分析系统稳定性，特点，设计系统等等(Matlab software mainly about the application of automatic control, system stability analysis using matlab, features, design systems, etc.)

MATLAB的典型例题源程序WORD版，由浅入深，从入门到精通，从菜鸟到高手的必由之路！(Typical example of the MATLAB the source WORD Edition, easy-to-digest, from the entry to the master, the only way from rookie to master!)

接收端采用的算法和程序流程与发送端发送的OFDM符号的帧结构有关系。具体的帧结构，以及定时估计，频偏估计，剩余误差跟踪的算法可参考算法说明文档。这里对程序的流程进行说明。 首先根据短训练字的特性进行相关运算，进行信号到达检测，当检测到相关值大于门限一定次数后，认为有信号到达。然后根据长训练字的特性，进行相关运算，进行OFDM符号FFT窗口起始位置的估计。估计出FFT窗口的位置后，先在时域进行小频偏的估计，将两个长训练字进行小频偏补偿后，进行FFT运算，根据FFT运算的结果进行整数倍频偏的估计。这些参数估计完成后，就可以进行数据解调了。先对数据部分进行完整的频偏补偿，然后根据估计的FFT窗口位置进行FFT运算得到频域的数据，进行解调。然后在对应于导频的子载波位置上提取出导频信息，根据导频信息估计出剩余定时误差以及剩余的信道响应误差，将误差量送入环路进行跟踪。当收到所有数据后，重新回到信号到达检测状态，进行下一次信号到达的检测和信号接收。 (The receiving end uses the algorithm and the program flow and the frame structure of the OFDM symbol transmitted by the sending end. Specific frame structure, and timing estimation, frequency offset estimation, residual error tracking algorithm can refer to the documentation. Here to illustrate the process of the program. First, according to the characteristics of the short training word correlation operation, the signal reaches the detection, when the correlation value is greater than the threshold of a certain number of times, that there is a signal to reach. Then, according to the characteristics of the long training word, the correlation operation is carried out, and the initial position of the OFDM symbol FFT is estimated. The estimated position of the FFT window, first in the time domain for small frequency offset estimation, two long training word for small frequency offset compensation, the FFT operation. According to the result of FFT for integer frequency bias estimation. Af)

说明：  Antenna can also be termed as an Aerial. Plural of it is, antennae or antennas. Now-adays, antennas have undergone many changes, in accordance with their size and shape. There are many types of antennas depending upon their wide variety of applications.

对信号进行取样，抽取，并将其与原信号对比(The signal sampling, extraction, and compared with the original signal)

图形图像融合MATLAB算法代码，含有相关图片(image processor matlab)

利用差分法，将数据拟合，从而可以更好的辨识非线性系统的损失位置。(By using the difference method and fitting the data, the loss location of the non-linear system can be identified better.)

运用MATLAB语言，基于哈夫变换，对于任意给定的图片，可以自动找出其中最长的5条直线，并准确画出来(The use of MATLAB language, based on the Hough transform, for any given picture, you can automatically find out the longest five straight, and accurately drawn)

用于Matlab计算迭代计算的，非常典型，还有完整的解释(Iterative calculation for Matlab, very typical, as well as a complete explanation)

说明：  基于matlab的单相整流器仿真程序，能实现整流器的数学建模(Matlab-based single-phase inverter source emulator Mathematical modeling of the rectifier)