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简易的录音功能。通过audiorecorder函数实现录音的功能。比电脑自带的录音好很多(Simple recording function. By recording audiorecorder function. Much better than the computer comes with the recording)

peParabWegImp用加权隐式格式解扩散方程的初边值问题(peParabWegImp initial boundary value problem of the solution of the diffusion equation with weighted implicit format)

里面是一个地震射线追踪的源码程序，还有相关的文档，适合学习地球物理专业的学生。(Inside is a seismic source ray tracing program, as well as related documentation for learning geophysics majors.)

基于costas环路的载波同步，使收发时钟频率和相位一致，环路包括四个部分乘法器和低通滤波、鉴相器、环路滤波器和数字振荡器组成(Based on the carrier synchronization of Costas loop, the frequency and phase of the transmit and receive clock is the same. The loop consists of four parts, including the multiplier and low-pass filter, phase detector, loop filter and digital oscillator.)

非线性方程组的求解方法：使用matlab编写，运用了aitken加速方法(Non-linear equations method: the use of matlab prepared to accelerate the use of Aitken Ways)

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matlab-OFDM-SLM-PAPR-BER系统仿真(matlab-OFDM-SLM-PAPR-BER system )

因为傅立叶变换对应的是无限信号,信号经过分帧后变成有限信号,分帧的信号再进行傅立叶变换后,高频部分将有 泄露 ,所以要加窗. 窗函数的拼谱都是在某高频部分截止,所以每帧信号加窗后的傅立叶变化,频谱基本 泄露 (Because Fourier transform corresponding is infinite signals, signals after framing become limited, framing signal again after Fourier transform, the high frequency part will have leaked , so to add window. Window function spell spectrum are in a high frequency part of the globe, so each frame and window after Fourier transform, signal spectrum basic leak )

MATLAB，即“矩阵实验室”，它是以矩阵为基本运算单元。因此，从最基本的运算单元出发，介绍MATLAB的命令及其用法2。(MATLAB, "Matrix lab," It was based on the matrix of the basic computing unit. Therefore, from the most basic computing element is introduced, and MATLAB ordered two of its use.)

Matlab编程必备手册，规范了编程格式，总结了编程原则和规则，为初学者提供一个良好的导向和帮助。(Matlab programming required manuals, standardized programming format, summarize the programming principles and rules, provide a good guide and help for beginners.)