DQM

A new method for periodic scattering problems using 2nd kind boundary integral equations and the free-space Green s function, adding extra degrees of freedom on the unit cell walls, and imposing quasi-periodicity in an expanded linear system.(A new method for periodic scattering problems using 2nd kind boundary integral equations and the free-space Green s function, adding extra degrees of freedom on the unit cell walls, and imposing quasi-periodicity in an expanded linear system. This avoids the problems with the standard approach, namely: the quasi-periodic Green s function is slow to evaluate, it diverges at Wood s anomalies, and it does not handle large aspect ratios well. Our new approach cures all three issues, and can easily be `wrapped around an existing code (e.g. fast-multipole acceleration) for the isolated-obstacle scattering problem. It includes the latest talk slides: "A new integral representation for quasi-periodic scattering problems in two dimensions")

实现瑞利衰落的仿真，利用改进的jakes模型来产生单径的平坦型瑞利衰落信道。(Realize the simulation of Rayleigh fading, improved jakes model is used to produce a single type of flat Rayleigh fading channel.)

关于MATLAB的一些应用实例，我同学编的，大家可以看一下-(About some application examples of MATLAB, my classmates series, we can look at-)

关于MATLAB分类的工具箱。 希望对你有所帮助！(MATLAB toolbox on the classification. I hope for your help!)

这是一个802.11a物理层OFDM技术的仿真与研究，可以观察各示波器输出波形(This is a simulation and research of 802.11a s OFDM physical layer, which can see its wave form.)

一个信道编码解码以及性能比较。 包括卷积码编码器，使用硬判决的维特比译码器。 比较了不同信道环境下（SNR）的误码率性能。(Comparing a channel codec, and performance. Including the convolution code encoder, using hard decision Viterbi decoder. Compare different channel environments (SNR) BER performance.)

在matlab里自行用简单语句编写的卷积运算程序，一道小作业题。(In matlab in their own written statement with the simple convolution procedure, a small job title.)

Lorenz系统的Poincare截面计算方法。用于分析转子点映射特性(Poincare cross-section of the Lorenz system calculation. Used to analyze the characteristics of rotor-point mapping)

牛顿方法优化算法可以用于多程序源代码内容(In numerical analysis, Newton s method (also known as the Newton–Raphson method), named after Isaac Newton and Joseph Raphson, is a method for finding successively better approximations to the roots (or zeroes) of a real-valued function. The algorithm is first in the class of Householder s methods, succeeded by Halley s method.)

CDMA 多用户检测算法（全集），包括最优检测器，相关检测器，KALMAN检测器，子空间检测器，自适应多用户检测器，盲自适应多用户检测器等等，硕士毕业论文可用。(CDMA multi-user detection algorithm (Works), including the optimal detector, the relevant detector, KALMAN detector, subspace detectors, adaptive multi-user detector, blind adaptive multiuser detector, etc., Master thesis is available.)