digitalmodulate

线性调频信号的matlab仿真，匹配滤波和脉冲压缩处理(Chirp Signal Matlab-Simulation, angepasste Filterung und Pulskompression)

M_MAP教你如何用MATLAB绘制海洋、大气类的图。可以使用各种投影，添加各种精度的岸线，绘制的图清晰美观。(M_MAP teach you how to use MATLAB mapping ocean, the atmosphere kind of map. Can use a variety of projection, the line to add a variety of precision, drawing a clear appearance of the map.)

说明：  在matlab仿真环境下，对直扩通信系统的同步算法及其流程进行说明(Matlab simulation in the environment, on the DS communication system synchronization algorithm and its process description)

chapter12....image compression

Area under curve explains

netfilter module to enforce network quotas.

this tuturial is a basic of Matlab.This document is a guide for Matlab begginers and for people who want to be an experts,too.

This tutorial starts with a simple conceptual model of an analog Phase-Locked Loop (PLL). Through elaboration it ends at a model of an all digital and fixed-point phase-locked loop. The final model can serve a starting point for code generation (both ANSI C or synthesizable HDL). The step-wise elaboration of the model illustrates how Simulink® forms the basis a model-based design where continuous verification of the model reduces errors.

说明：  4. 试说明卷积编解码的工作原理。请用Simulink仿真卷积编码，并用Viterbi译码的方法进行解码，其中的编码、译码全部是自己编写代码(S-Function方式)，不是调用Simulink的已有编码、译码函数。请在加性白高斯噪声信道中，画出比特信噪比与误码率的关系曲线。(4 Explain the working principle of convolutional encoding and decoding. Please use the Simulink simulation convolutional coding and Viterbi decoding method used to decode, in which the encoding, decoding all write your own code (S-Function mode), instead of calling the Simulink existing encoding and decoding functions. In additive white Gaussian noise channel, signal to noise ratio and bit error rate to draw the curve.)

详细画出了时域和频域的相关图，采用的是脉冲对消法，采用偏最小二乘法，最终的权值矩阵就是滤波器的系数，有小波分析的盲信号处理，最大似然（ML）准则和最大后验概率（MAP）准则，供做算法研究人员参考。( Correlation diagram shown in detail the time domain and frequency domain, It uses a pulse of consumer law, Partial least squares method, The final weight matrix is ??the filter coefficient, There Wavelet Analysis Blind Signal Processing, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion, Algorithm for researchers to do reference.)