moshishibiesuanfasheji

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

四种窗函数设计FIR数字滤波器matlab源码（hant,hamming,blackman,kaiser)(use window functions to design digital low-pass FIR filter...)

说明：  杨辉三角，可以更具你的需要输入杨辉三角的大小，它会自动地为你输出最合适的杨辉三角。(Yang Hui traingle,you can more you need to enter the size of Yang Hui triangle,it will automatically output the most suitable for you,Yang Hui triangle.)

很好的粒子图像测速（PIV）Matlab代码，在Matlab R2010a 下测试通过(Good particle image velocimetry (PIV) Matlab code, tested under Matlab R2010a)

matlab 激光光学分析和应用包含所有源码程序(Matlab laser analyser including the source code)

simulation nodes euclidean distance closest point

Single-Phase half-controlled bridge rectifier(ALPHA=120)

聚类算法的验证，包括正确率等。经过验证，完全可用(clustering validity)

采用BPSK调制的UWB信号，matlab源代码(UWB BPSK signal generation)

这是用matlab编写的fast算法，这是一种速度非常快的角点检测方法，实时性很强。(binary descriptor)