wuchaxingnengbiaomian

正交频分复用（OFDM）是一种特殊的多载波传输技术。它可以有效地对抗多径衰落，能够以很高的频谱利用率来实现高速数据传输。分析介绍了OFDM系统的基本原理及系统性能，以Matlab为开发平台，仿真了OFDM系统的误码率，仿真结果表明OFDM系统在较低信噪比下也具有较好的性能(Orthogonal Frequency-division Multiplexing（OFDM） is a special kind of multi-cartier transmission technology. It can effectively overcome multi-path fading and increase the spectral usage efficiency to implement high-speed data transmission. This paper analyzes the basic principle of OFDM system and system performance, and simulates the Bit Error Rate （BER） of OFDM system on the platform of Matlab. The simulation results show that the OFDM has a good performance.[)

The two-channel QMF bank is one of the earliest and most commonly used filter bank structures.

matlab 下的遗传算法源码，可以应用到大部分情况的全局寻优。(By using matlab ，I have provided a genetic algorithm source code, which can be applied to most cases of global optimization.)

A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies. DCTs are important to numerous applications in science and engineering, lossy compression of audio (e.g. MP3) and images (e.g. JPEG) (where small high-frequency components can be discarded), to spectral methods for the numerical solution of partial differential equations. The use of cosine rather than sine functions is critical for compression, since it turns out (as described below) that fewer cosine functions are needed to approximate a typical signal, whereas for differential equations the cosines express a particular choice of boundary conditions.

这是一份关于MATLAB数值计算的程序，讲解的很详细，很好的学习材料(This is a numerical calculation on the MATLAB program, explained in great detail, good learning materials )

WSN(无线传感器网络)的初期模型建立以供后期仿真，模拟所用。(WSN (Wireless Sensor Networks) Ausgangsmodell für die Post-Simulation, die Simulation verwendet)

Create some artificial two-term mixture data

一种 月球定轨的想法 给出了 月球所受所有力的分析 同时可以依此给飞行器定轨(Analysis of a lunar orbit determination gives the idea of ​ ​ all the forces of the moon suffered so to aircraft while Orbit)

说明：  基于压缩感知中DCT基的BP算法，用基追踪算法重构原始信号(Perception-based compression algorithm for DCT based BP, with the basis pursuit algorithm to reconstruct the original signal)

一种新的协同进化优化算法处理图像的方法，很好，能运行！！( A new coordination method, image processing algorithm in evolutionary optimization is very good, can run )