ivt

matlab PID程序 比较全 个人收集的 感觉不错 推荐给大家(matlab PID procedures to collect the whole feeling of personal well recommended to everyone)

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Skydiving Simulation. Simulation can help predict position and velocity of a skydiver who jumps an airplane and opens a parachute. In this tutorial, we predict the position and velocity of a skydiver in two dimensions (horizontal and vertical) the time of the initial jump through the first 90 seconds.

基于水的状态方程，给出了101kPa~1.5GPa范围内水中冲击波的密度、波速、流速、当地声速与压力的关系。(Based on the equation of state of water, the dependences of the shock wave density, speed, flow velocity and local sound speed on shock wave pressure are given. )

可以比较简单实现通信系统中BPSK算法，是其他算法的基础(Can be relatively simple algorithm to achieve communication systems, BPSK, is the basis for other algorithms)

simulation in transientcdfr

Implementation of regular expresions on Powerbuilder

Friction parameters identification

FFT傅里叶变换频谱单边谱分析的matlab实现，已经过验证(failed to translate)

an investigation on use of chaotic sequence in DS-CDMA. The DS-CDMA systems offer physical layer security without the need for a significant increase in computation or power requirements. Nowadays, DSCDMA has been used widely. These systems suffers from multiple access interference because of other users transmitting in the cell, channel inter symbol interference and additive white Gaussian noise. Codes have an effective role in DSCDMA system, so M-sequences; gold sequences have been used as spreading codes in DS-CDMA. These sequences by shift registers and periodic in nature are developed. However, these sequences are not enough and also limit the security. This paper presents an investigation on use of new type of sequences called chaotic sequences for DS-CDMA system. These sequences by chaotic maps are generated.