yichuansuanfa

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

采用热核构造权重，电力系统暂态稳定程序，可以进行暂态稳定计算,小波包分析提取振动信号中的特征频率。( Thermonuclear using weighting factors Power System Transient Stability Program, can be transient stability, Wavelet packet analysis to extract vibration signal characteristic frequency.)

matlab解耦合非线性薛定谔方程组，考虑自相位调制、交叉相位调制与四波混频(Matlab solves the coupled nonlinear Schrodinger equations, considering self phase modulation, cross phase modulation and four wave mixing.)

说明：  UFMC_OFDM传输 第5 代无线通信系统的关键技术之一，详细细描述了UFMC系统的发送和接收的仿真实现过程(Ufmc OFDM transmission One of the key technologies of the 5th generation wireless communication system, the simulation process of sending and receiving of ufmc system is described in detail)

bean recog -gui red , green and black color only M file

关于人工神经网络的相关程序，有人工神经网络用于系统辨识的相关程序等(On artificial neural network-related procedures, artificial neural network for system identification procedures, etc.)

遗传算法matlab实现，还有倒位操作。(Genetic Alogrithm using matlab, as well as changing-seat operation.)

Filler routines for different channels and sample sizes.

chebyshev 2值量化辛辛苦苦的编程 奉献给大家 ，愿大家在混沌序列上共同提高(chebyshev 2 value quantization laboriously programming dedicated to you, everyone is willing to jointly improve the chaotic sequence)

breadthfirstsearch FOR SEARCH ROAD