SecSample.m

Space time coding in Tarokh s paper BER simulation STBC encoder and decoder including M-ary QAM

说明：  通信系统关键技术仿真--比特加载算法 函数完成在给定子信道信息、误码率和码元速率的前提下子信道的比特分配。(Key technology communication system simulation- bit loading algorithm function to complete in a given sub-channel information, the error rate and symbol rate sub-channel under the premise of the bit allocation.)

偏执类工业机器人逆运动学解数值解法程序主代码(industry robot inverse kinematics)

this code is used to solve nonlinear equations using Newton, Bisection, secant methods.

MATLAB实现锁相环，对初学者很有帮助(MATLAB to achieve phase-locked loop, very helpful for beginners)

说明：  Matalab通信中的一些仿真，调制解调方面的，比较全面，可以借鉴下。(Some Matalab communication simulation, modem connection and a more comprehensive and can learn from the next.)

这是matlab编程基本工具，希望对大家有点帮助(This is the basic tool for Matlab programming, we hope to help a bit)

VOICEBOX is a speech processing toolbox consists of MATLAB routines that are maintained by and mostly written by Mike Brookes, Department of Electrical & Electronic Engineering, Imperial College, Exhibition Road, London SW7 2BT, UK. Several of the routines require MATLAB V6.5 or above and require (normally slight) modification to work with earlier veresions. The routines are available as a zip archive and are made available under the terms of the GNU Public License. The routine VOICEBOX.M contains various installation-dependent parameters which may need to be altered before using the toolbox. In particular it contains a number of default directory paths indicating where temporary files should be created, where speech data normally resides, etc. You can override these defaults by editing voicebox.m directly or, more conveniently, by setting an environment variable VOICEBOX to the path of an initializing m-file. See the comments in voicebox.m for a fuller description.

In this document has been introduced comprehensively how to solve different partial differential equations .Everbody can solve Heat Conduction Equation, Helmholtz Equation, Laplace Equation and Wave Equation for different initial and boundary conditions. This document is elemantary of to understand how to solve partial differential equations with the aid of a porgramming language.

　　车辆监测用测速雷达是依据多普勒效应原理实现的。由雷达发出一束微波，遇被测目标（车辆）时微波被反射回来，再由雷达接收反射波。如果目标相对于雷达有距离上的运动，反射波的频率将与发射频率发生差异，而这种差异的大小正比于目标与雷达的相对运动速度。于是，雷达通过检测反射波频率和发射波频率的差，就可以计算出被测车辆的移动速度。本次课程设计是利用离散付里叶变换进行频谱分析，设计数字滤波器组，并对滤波器组加窗降低副瓣，通过频域方法测量速度。(Vehicle monitoring using radar gun is based on the realization of the principle of the Doppler effect. By the radar emits a microwave, in case the measured target (vehicle) when the microwave is reflected back, and then by receiving the reflected radar waves. If the target relative to the radar on a distance of motion, the frequency of the reflected wave and the emission frequency of the difference, and this difference is proportional to the relative target and radar velocity. Thus, by detecting the reflected radar wave frequency and the frequency difference between the transmitted wave, we can calculate the movement speed of the vehicle under test. This course is designed to take advantage of the discrete Fourier transform spectral analysis, digital filter design group, and filter bank windowed lower sidelobes by frequency domain methods to measure speed.)