anfispid

说明：  《Matlab6.x符号计算与应用》机械工业出版社2003年版，刘宏友 彭锋 等编著。本书基于matlab6.0环境下的大量实例，介绍了matlab符号计算功能的适用方法。(Matlab6.x symbolic computation and application，China Machine Press, 2003 edition. LIU Hongyou-Peng Feng, eds. This book based on a large number of instances in matlab6.0 environment, introduced the application of matlab symbolic computing methods.)

用于最小二乘法解非线性方程 以仪器精度理论5-8为范例(For the least-squares method for solving nonlinear equations example of instrument precision theory 5-8)

Simulation for neural networks in matlab

本文利用编写的MATLAB软件结合解析法证，分析了一种新型的接地距离继电器在系统振荡时再发生单相经过渡电阻接地短路时的动作特性。该接地距离继电器的动作判据是通过比较故障后测得的母线电压、补偿电压、零序电流和负序电流四个量的相位关系以确定继电器的动作行为情况 (In this paper, written in MATLAB software analysis and forensic analysis of a new type of ground distance relays in the system oscillation movement characteristics of single-phase transition resistance is shorted to ground. The operating criteria for the ground distance relay bus voltage is measured by comparing the failure, the phase relationship of offset voltage, zero sequence current and negative sequence current four amount to determine the relay actuation behavior )

Receive notification of general document events.

律u律pcm编码 若输入A律PCM编码器的正弦信号为x(t)=sin(1600πt),采样序列为x(n)=sin(0.2πn),n=0,1,2,…,10，将其进行PCM编码，求出编码器的输出码组序列y(n)。 要求：1) 直接采用A律扩展器函数求解上述问题。 2）使用13折线法近似A律PCM 求解上述问题。 3）计算量化误差。(Law a law pcm coding If the input A-law PCM encoder is sinusoidal signal x (t) = sin (1600πt), for the sample sequence x (n) = sin (0.2πn), n = 0,1,2, ..., 10, it will be PCM coding to obtain the coded output code group sequence y (n). Requirements: 1) directly A-law expander function to solve the above problems. 2) using a 13 fold line approximation A-law PCM to solve the above problems. 3) calculating the quantization error.)

灰色预测程序，采用GM(1,1)模型建立(Grey prediction program)

This code would create the P-P reflection coefficient with incident angle in the relation of zoeppritz equation. It is very useful in seismic analysis.

一个16QAM数字调制后的通信系统,包括信号发生器,调制器,信道传输,接收器,均衡器等部分(After a 16QAM digital modulation communication system, including the signal generator, modulator, channel transmission, receivers, and other parts of EQ)

matlab对PLL环路相位噪声的仿真m文件(simulation of PLL loop phase noise)