802.11a

在FFT后信号的频率往往与谱线不相重合，而在两条谱线之间。为了要求得信号的频率、幅值和初始相角，必须要使用修正法来完成。这里给出一种修正法。(After the signal in the FFT frequency spectrum often do not coincide, and in between the two lines. Request for a signal frequency, amplitude and initial phase angle, we must use to complete the Amendment Act. Here are a Amendment Act.)

基于matlab的滤波反投影重建算法，实现了标准2维图像的重建(based on Matlab filtered back projection reconstruction algorithm, and the standard two-dimensional image reconstruction)

It s a code of sliding mode coulomb friction

In this paper, a multimodal image fusion algorithm based on multiresolution transform and particle swarm optimization (PSO) is proposed. Firstly, the source images are decomposed into low-frequency coefficients and high-frequency coefficients by the dual-tree complex wavelet transform (DTCWT). Then, the high-frequency coefficients are fused by the maximum selection fusion rule. The low-frequency coefficients are fused by weighted average method based on regions, and the weights are estimated by the PSO to gain optimal fused images. Finally, the fused image is reconstructed by the inverse DTCWT. The experiments demonstrate that the proposed image fusion method can illustrate better performance than the methods based on the DTCWT, the support value transform (SVT), and the nonsubsampled contourlet transform (NSCT).

bpsk is binary phase shift keying modulation technique.

LDPC编码的完整实现，包括编码和解码过程(LDPC encoding the full implementation, including encoding and decoding process)

实现了2FSK调制的一个小程序，为刚入门的通信类网友提供一个学习的参考(Implementation of 2FSK modulation of a small program, for beginners communication provides a reference for the study)

doing the operation of windrow hoff process

入门matlab很好的实例教程。通俗易懂，适合初学者。(introductory Matlab good example and guidance. Easily understood, for beginners.)

典型的遗传算法，保证能够运行，切没有密码(The typical genetic algorithm)