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信号与系统，信号与系统课设的信号加入噪声以及滤波(Signals and Systems, Signals and Systems course set signal to noise and filtering)

this file is simulink of DC motor and PID controller

研究Chen系统的混沌运动，通过理论分析与数值计算分析系统基本动力学性质，并通过系统相图、全局分 岔图与Lyapunov指数图分析该Chen混沌系统动力学行为．(Chen chaotic motion of the system, through theoretical analysis and numerical calculation and analysis system of basic dynamic properties and phase diagram of the system, the global bifurcation diagram and Lyapunov exponent analysis of the Chen chaotic system dynamics.)

该书是一本MATLAB程序设计的完整教材，特别是对于程序开发助教来说，可以说是一顿丰盛的午餐。(This book is a complete MATLAB programming teaching materials, especially for program development assistant, this can be said to be a sumptuous lunch.)

对于npsk的调制和解调方案，修改n的值就可以得到各种psk的效果(Modulation and demodulation for npsk program, modify the value of n can be the effect of various psk)

基于电网电压定向的逆变器并网simulnk图，正确的可以运行。(Based on the orientation of the grid voltage inverter grid simulnk map, you can run correctly.)

详细描述truetime工具箱的基本原理和用法，对初学者有帮助(Truetime a detailed description of the basic principles and usage of the toolbox, to help beginners)

说明：  关于LFM信号的匹配滤波器，程序和文献都有。(Matched filter on the LFM signal, procedures and documentation have.)

matlab去噪程序 应用于逆向中大量点云数据的处理(matlab denoising procedure applied to reverse a large number of point cloud data processing)

RSSI是无线传感器网络中一种基于测距的定位方法，本程序中使用对数常态模型来测距离。(RSSI is a wireless sensor network positioning method based on distance, this program is measured with a lognormal model for the distance.)