线性调频信号的速度多普勒模糊函数chirp-ambiguity

this is matlab code cyclic 1511

这是在matlab编辑环境下开发的关于“图形处理”的实用程序。(This is developed under matlab editing environment on the " graphics processing" utility.)

适用于AR模型的功率谱估计，包括基于Yule-Walker方法估计序列功率谱以及基于最大熵方法的功率谱估计。(AR model for power spectrum estimation, including methods based on Yule-Walker power spectrum estimation sequence and the method based on maximum entropy power spectrum estimation. )

该接口主要描述了关于应用层与90820之间的收发数据控制(description of the main interface for the application layer and between the TX 90820 Data Control)

ALMOTIIIII FILE IN AWGN

Function to plot uncertainty 3-sigma ellipse in matlab

数字图像加入噪声，以及使用不同的方法编程实现去噪(Digital image by adding noise, and the use of different methods of programming denoising)

MATLAB程序，做阻尼振动的小球的运动作投影，观察在阻尼振动过程中，小球的振幅衰弱情况(MATLAB program, do the damping vibration movement of the ball for the projector, observe the damping vibration process, the weak amplitude of the ball)

IEC协会推荐的电压波动和闪变的MATLAB计算模型，并含IEC标准（这个标准很难找到免费的）(IEC Association recommended voltage fluctuations and flicker MATLAB computing model, and with the IEC standard (this standard is difficult to find for free))

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。(First, according to the characteristics of the short training word correlation operation, the signal reaching the detector, when the detected correlation value is greater than the threshold after a certain number of times that a signal arrives. And then the characteristics of long training word, the correlation operation for the FFT window starting position of an OFDM symbol estimate. The estimated position of the FFT window, the first small frequency offset in the time domain estimation, the two long training word small frequency offset compensation, the FFT operation, the FFT result of the operation for integer frequency offset estimate. These parameter estimation is completed, the data can be demodulated on. The first portion of the data for a complete frequency offset compensation, and based on the estimated FFT window position of the FFT operation to obtain frequency domain data, demodulated. Then corresponding to the position of the pilot subcarriers are extracted on pilot inform)