dogSurve

matlab在数学建模中的应用 第二章 原书配套 很好用(application in modeling with matlab chapter2)

POS inventory system

GENERATING NOISY IMAGES BY USING NOISE FILTERS : GAUSSIAN, UNIFORM, SALT&PEPPER

Dynamic simulation of a manually operated star

说明：  一维杆单元有限元分析，包中有详细的WORD文档说明(One-dimensional finite element analysis of beam elements, including the documentation detailed WORD)

This is a Simple program to illustrate the working of Cognitive radio

频率响应分析 FDD法 测频率 频率响应分析 FDD法 测频率 频率响应分析 FDD法 测频率(FDD frequency response analysis method to measure the frequency of the frequency response analysis method to measure the frequency FDD FDD frequency response analysis method to measure the frequency)

李雅普诺夫指数时需用到的两个参数，即时间延迟与嵌入维数的求其方法(When Lyapunov exponent required to two parameters, namely the time delay and embedding dimension seeking its methods)

说明：  1．用Matlab产生正弦波,矩形波,以及白噪声信号，并显示各自时域波形图 2．进行FFT变换，显示各自频谱图，其中采样率，频率、数据长度自选 3．做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱 4．用IFFT傅立叶反变换恢复信号，并显示恢复的正弦信号时域波形图 (1. Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and display their respective time-domain waveform of Figure 2. FFT to transform, showing their frequency spectrum, including sampling rate, frequency, data length of 3-on-demand. Made of the three signals in root-mean-square maps, power maps, as well as the number of root-mean-square map 4. Fourier Transform IFFT with the restoration of signals, and displays the sinusoidal signal the resumption of time-domain waveform)

设计一个四用户的扩频通信系统，扩频增益为N=16，采用Walsh码进行直接序列扩频，BPSK调制，无线信道为AWGN信道。在接收端进行解扩，解调，判决，通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。(Designed a four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct Sequence Spread Spectrum, BPSK modulation, AWGN channel for the wireless channel. At the receiving end for despreading, demodulation, judgments, through the simulation to be one of a user' s bit error rate and SNR of the simulation results.)