zishiying_boshu_xingcheng

LDPC码的经典的译码程序：BP译码算法(Classic LDPC code decoding procedure: BP decoding algorithm)

说明：  代码中含有多种多目标优化的测试函数，在代码中修改即可测试。(The code contains a variety of multi-objective optimization test functions, which can be tested by modifying the code.)

文章讲述了现在韩国的频谱政策和动态频谱接入技术。过去韩国的频谱管理政策需要特权，并且只有一小部分频谱可以公用。随着无线技术的发展，现在，韩国政府，使用了机遇动态频谱接入的新型频谱策略，例如LBT技术用于REID，UWB和FACS等。MIC还考虑如何在DTV过渡完成后，重新分配频谱。新型的无线电技术如认知无线电和SDR将在UHF边带中应用新的服务。MIC试图用一用有效地方式开放频谱并接受新技术用于频谱策略中。(In this paper, we introduce spectrum policies and dynamic spectrum access technologies in Korea. In the past, Korea spectrum management was the command and control with exclusive usage rights and small portions of spectrum commons bands. With the development of the radio technologies, Recently, Korea government, MIC(ministry of information and com- munication), has been adopting new spectrum policies based on dynamic spectrum access technology such as LBT(Listen Before Talk) for RFID, UWB, and FACS(Flexible Access Common Spectrum) etc. MIC is also considering spectrum reallocation of digital dividend bands after DTV transition. New radio techniques such as cognitive radio and SDR will be applied to new services in this UHF band. MIC is trying to open the radio spectrum in an efficient way and adopt new technology into spectrum policy. Thus MIC is extending the open spectrum such as spectrum commons and spectrum liberalization bands. )

多尺度包络谱程序,可用于检测旋转机械中旋转部件是否存在故障(Multiscale envelope spectrum program, can be used for the detection of rotating machinery fault)

wifi定位算法实现基于TDOA的时间差异的定位算法。(Wifi location algorithom,simple and nice!!)

说明：  经验模态分解（Empirical Mode Decomposition，简称EMD))方法被认为是2000年来以傅立叶变换为基础的线性和稳态频谱分析的一个重大突破，该方法是依据数据自身的时间尺度特征来进行信号分解，无须预先设定任何基函数。这一点与建立在先验性的谐波基函数和小波基函数上的傅里叶分解与小波分解方法具有本质性的差别。(Empirical mode decomposition (EMD) method is considered as a major breakthrough in linear and steady-state spectrum analysis based on Fourier transform since 2000. This method decomposes signals according to the time scale characteristics of the data itself, without setting any basis function in advance. This is essentially different from Fourier decomposition and wavelet decomposition based on prior harmonic basis function and wavelet basis function.)

kalman滤波的小例子，用matlab语言写的，很清晰。(kalman filtering small example, the language used to write matlab, very clear.)

余成波《数字图像处理及Matlab实现》.pdf(YU Cheng-bo " digital image processing and Matlab to achieve" . Pdf)

generates multidimensional polar plots

有matlab各种实用程序300多个，涵盖信号及图像处理，优化，各种科学计算，简明易学(Matlab utilities have a variety of more than 300, covering the signal and image processing, optimization, scientific computing, concise easy to learn)