qausian-elimination

Extended kalamn filter for tracking manuers linear and nonlinear in motion

Adaptive filtering constitutes one of the core technologies in digital signal processing and finds numerous application areas in science as well as in industry. Adaptive filtering techniques are used in a wide range of applications, including echo cancellation, adaptive equalization, adaptive noise cancellation, and adaptive beamforming. Acoustic echo cancellation is a common occurrence in today’s telecommunication systems. The signal interference caused by acoustic echo is distracting to users and causes a reduction in the quality of the communication. This paper focuses on the use of LMS and NLMS algorithms to reduce this unwanted echo, thus increasing communication quality.

LDPC码的各种译码算法，包括decodeProbDomain,decodeLogDomain, decodeLLR_BP,normalized BP,offset BP,MBP Layered decoding(LBP),normalized LBP, offset LBP(Kinds of LDPC decoding algorithms ,including decodeProbDomain,decodeLogDomain, decodeLLR_BP,normalized BP,offset BP,MBP Layered decoding(LBP),normalized LBP, offset LBP.)

通过导入后缀为.wav的噪声音频信号通过matlab进行频谱分析(Frequency spectrum analysis by importing noise audio signal suffixed with. wav through MATLAB)

The ADPCM package is a flexible simulation tool for an adaptive differential encoder and decoder with backward predictor adaptation. It uses an LP-based (Burg) adaptive predictor and a nonuniform quantizer with mu transfer function. It generates the encoded bitstream and estimates the efficiency of a Huffman code for the compressed sequence.

通过大量的撕裂介绍了如何使用MATLAB实现对电子线路、数字电路、数字信号处理、数字通信的仿真及其方法和技巧。(Through a lot of tearing describes how to use MATLAB to achieve the electronic circuits, digital circuits, digital signal processing, digital communication and its methods and techniques of simulation.)

在这篇文章中，我们给出了非线性脉冲和孤子耦合的理论，它包含了2阶3阶色散，模间色散，损耗增益，色散不匹配，高阶非线性等等。文章主要说明了几个非线性耦合的基本问题： 非线性脉冲耦合行为主要依赖于参量Lcd （色散长度乘耦合系数），而不是输入脉冲形状，因而，孤子，高斯脉冲以及类高斯脉冲表现出同样的开关特性。根据Lcd, 耦合器可分为三个工作区，每个区有自己独特的耦合行为。一个脉冲是否表现为连续波的耦合行为还是超快脉冲的耦合行为，决定于Lcd 而不是脉宽。 我们显示0.8皮秒的脉冲也遵从连续波的方程和耦合行为， 可以当连续波一样来分析。(study input peak power vursus output total power for different Lcd, P~P CURVES )

基于CIODs的空时分组码编译码过程，及误比特率曲线的仿真(Based CIODs of space time block code encoding and decoding process, and simulation of bit error rate curve)

这是一份比较完整的HHT资料，有源程序以及它在地震资料处理中的应用。对于新手来说这是一个很好的学习材料。(This is a relatively complete material on HHT including the source and its applications in seismic data processing. For a learner,it is a good learning materials.)

说明：  本书<<实用小波方法>>用通俗的数学语言介绍了小波理论及其应用的基本知识，围绕时-频分析需要的问题，讨论了Fourier变换和窗口Fourier变换的不足之处，详细分析了小波变换的基本原理.(Book &lt &lt Practical wavelet method&gt &gt in simple mathematical language description of wavelet theory and its applications, basic knowledge, around the time- frequency analysis of the problem need to discuss the window Fourier transform and Fourier transform shortcomings are analyzed in detail The basic principle of wavelet transform.)