quaternion

说明：  QPSK调制的Matlab程序。包含了QPSK调制及误码率分析。可以调制一随机产生的序列来分析误码率，也可以调制一幅图像来分析误码率。(QPSK modulation of the Matlab program. Contains a QPSK modulation and BER analysis. Can be modulated to a randomly generated sequence analysis of BER, an image can also be prepared to analyze the error rate.)

genetic a cromozom of 9

通过贝叶斯决策，测试给定的一组数据（身高/体重）来判断是男生还是女生。(Through Bayesian decision, given a set of test data (height/weight) to determine if a guy or girl.)

说明：  Jacobi迭代法和SOR方法求解线性方程组(Jacobi iterative method and the SOR method for solving linear equations)

带动量项的BP算法程序求解XOR问题，权值更新为批处理方式。(driven volume items BP algorithm XOR problem solving process, the right to update the value of the batch mode.)

一个Newton_Raphon迭代的简单代码，还有Primal Dual Interior Point的例子(A simple iterative code of Newton_Raphon method)

salt&pepper filter for matlab

VC调用MATLAB的简单事例，没有复杂的功能，只适合初学者(A simple example of calling MATLAB VC)

本书介绍使用ＭＡＴＬＡＢ进行电路、信号与系统的分析，主要内容有三篇：学用ＭＡＴＬＡＢ、 电路分析、信号与系统分析。第一篇为ＭＡＴＬＡＢ语言的基础知识，介绍ＭＡＴＬＡＢ数值计算、 程序设计、符号运算及图形绘制方面的功能和指令。第二篇为ＭＡＴＬＡＢ在电路分析中的应 用，按电路分析的三大基本内容分章：电阻电路、动态电路的时域分析、频域分析。本篇除介 绍使用ＭＡＴＬＡＢ进行电路分析的基本方法外，还给出了作者自编的通用符号电路分析程序 ｓａｎａ．ｍ，它使线性电路的分析问题变得十分简单。第三篇主要配合高等教育出版社出版、赵 录怀等编的《信号与系统分析》教材编写，共七章：信号的可视化、ＬＴＩ系统的时域数值分析、 拉普拉斯变换、ｚ变换、连续时间信号与系统的傅里叶分析、离散时间信号与系统的傅里叶分 析、模拟与数字滤波器。(This book describes the circuit, signal and system analysis using MATLAB main content three: Learning with MATLAB Circuit analysis, signals and systems analysis. MATLAB language basics first describes the MATLAB numerical calculation, Program design, symbolic computation and graphics rendering functions and instructions. Second MATLAB in circuit analysis should With three basic circuit analysis is divided into chapters: resistive circuits, dynamic time-domain circuit analysis, frequency domain analysis. This in addition to referral Shao circuit analysis using MATLAB, but also gives the universal symbol circuit analysis program of self sana. m, it is very simple linear circuit analysis. The third major with the Higher Education Press, Zhao Recorded pregnant edited "Signals and Systems Analysis" textbook written seven chapters: the visualization of the signal, LTI system time domain numerical analysis, Laplace transform, z transform, continuous-time signals and systems, Fourier an)

设计一CQMFB，低通滤波器H0(z)来自一半带滤波器。该半带滤波器的长度为47，通带截至频率ωp = 0.42π，试给出H0 (z)，H1(z)，G0(z)，G1(z)的幅频响应，单位抽样响应并画图。(Design a CQMFB, low-pass filter H0 (z) the half-band filter. The length of the half-band filter 47, the passband cutoff frequency ωp = 0.42π, try to give H0 (z), H1 (z), G0 (z), G1 (z) of the amplitude-frequency response, the unit sample response and Paint.)