1156

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

这是一个视频文件，它是关于遗传算法多目标优化的视频(This is a video file, it is about multi-objective genetic algorithm to optimize the video)

这个程序就是最基本的粒子群优化算法程序，用Matlab实现，非常简单。(This program is the most basic particle swarm optimization procedures, using Matlab to achieve, is very simple.)

Frequency-resolved optical gating

说明：  l雷诺方程离散求解的基本思路以及程序编写思路(The finite difference method of Reynolds equation and the realization of related programs)

跳频通信的时频分析,稳定性分析及图片显示，跳频序列码的仿真(hop frequence STFT)

通过这个算法可以确定BP神经网络中隐层最优神经元个数(Determine the BP neural network hidden layer neuron number of optimal)

图论中的floyd算法。简单的小程序，可以插入任何过程中，方便实用。(In graph theory algorithms. Simple procedure, you can insert any process, convenient and practical.)

PUMA(Phase Unwrap Max Flow) for matlab

gravity turn for a moon landing program this source code simulate the landing of a moon tracker