tracking

In this paper, we present a novel data-based method for simultaneous Maximum Likelihood (ML) symbol and carrier-frequency o畇et estimation in Orthogonal frequencydivision multiplexing (OFDM) systems. Statistical properties introduced by the cyclic pre痻, a guard space between OFDM symbols, provide su眂ient information about the unknown parameters. It is shown that the redundancy introduced by this cyclic pre痻 allows the estimation to be performed without additional pilots. Simulations show that the performance of the frequency estimator is applicable in a tracking mode while the timing estimation can be used in an acquisition mode.

二维有限差分代码，利用matlab写成，比较详细，有一定学习意义(2-D FDTD code with simple radiation boundary conditions)

说明：  自己录制声音，然后对录制后的声音调制，然后再解调(Recording their own voices, and then, after recording the voice of the modulation, demodulation and then)

采取量子遗传算法来优化参数实现图像的自适应增强(take quantum genetic algorithm to optimize the parameters, enhanced adaptive image)

线性调频信号是获得高分辨常用信号，文件是通过线性调频信号来进行脉冲压缩处理，获得高分辨。(Chirp signal is to obtain a high-resolution commonly used signal file chirp signal pulse compression processing to obtain high-resolution.)

MATLAB实现文本动态显示，感兴趣者一起探讨(MATLAB realization of dynamic display text, those who are interested to explore)

说明：  processing and database for sar images

这个资料为数字图像处理技术方面matlab的入门资料，讲述了matlab的数字图像处理工具包的使用，以及基本的图像处理函数.(This information technologies for digital image processing matlab introductory information about the digital image processing matlab toolkit to use, and basic image processing functions.)

langrange function estimation

一阶QKF（积分卡尔曼滤波）算法，性能优于UKF、EKF，谢谢~(An order QKF (integral Kalman filter) algorithm outperforms UKF, EKF, thank you ~)