betweenness

In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels. A training sequence which consists of one orthogonal frequency-division multiplexing (OFDM) block having a tile structure in the frequency domain is proposed to perform synchronization. Timing offsets are estimated using correlation-type algorithms. By inserting some null subcarriers in the proposed tile structure, we propose a computationally efficient subspace decomposition- based algorithm for CFO estimation. The issue of optimal tile length is studied both theoretically and through simulations. By judiciously designing the tile size of the pilot, the proposed algorithms are shown to have better performance, in terms of synchronization errors and bit error rate, than the time-division multiplexing-based training method and the computationally demanding space-alternating generalized expectation-maximization

对OFDM系统功率分配贪婪算法的进行了仿真。(Power allocation for OFDM systems greedy algorithm for the simulation.)

此程序为工程应用中的平面四边形八节点等参数单元，较为简单(This program for engineering applications in flat quadrilateral eight-node parameters such as units, a relatively simple)

这是一种关联度问题的MATLAB的代码有用请下载(if it help,please go ahead)

this file can be used to calculate the entropy of english language.

MATLAB与PSCAD联合仿真实例,包括 hvdc_fourier、hyst_plot、phasor、three_dim_plot等(The Co-Simulation of MATLAB and PSCAD，including hvdc_fourier、hyst_plot、phasor、three_dim_plot.)

matlab simulink helicopter control

C4.5的matlab实现，并且进行了详细的注释，并进行了有序化处理(C4.5 matlab realize, and conducted a detailed notes, and conducted an orderly processing)

harris角点检测，用matlab实现(harris corner detection)

说明：  自适应遗传算法matlab代码，用MATLAB语言编写，可以直接运行。(Adaptive genetic algorithm matlab code, used MATLAB language, you can directly run.)