搜索资源列表
my_keshematlab
- 此系统包含多种数字信号调制,使用方便,特别适用于初学者!-Welcome to domnloads my code !thank you !
Hilbert-and-wavelet-transform
- 利用希尔伯特变换和小波变换提取信号特征,对信号实现调制样式识别-the signal identify method base on Hilbert and wavelet transform,maybe useful for you
q1
- 提出了一种基于复解析小波变换的相位诊断齿轮故障的方法。复解析小波变换将Hilbert变换与小波分析紧密结合在一起,具有自适应分析能力。利用复解析小波变换得到齿轮振动信号的相位,其功率谱图上可提取调制边频带结构来识别故障模式。试验结果表明这种方法可有效应用于齿轮局部故障诊断中。-A new method using the phase based on complex analytical wavelet transform for fault diagnosis of gears was pro
q2
- 提出了一种基于复解析小波变换的相位诊断齿轮故障的方法。复解析小波变换将Hilbert变换与小波分析紧密结合在一起,具有自适应分析能力。利用复解析小波变换得到齿轮振动信号的相位,其功率谱图上可提取调制边频带结构来识别故障模式。试验结果表明这种方法可有效应用于齿轮局部故障诊断中。-A new method using the phase based on complex analytical wavelet transform for fault diagnosis of gears was pro
q3
- 复解析小波变换将Hilbert变换与小波分析紧密结合在一起,具有自适应分析能力。利用复解析小波变换得到齿轮振动信号的相位,其功率谱图上可提取调制边频带结构来识别故障模式。试验结果表明这种方法可有效应用于齿轮局部故障诊断中。-A new method using the phase based on complex analytical wavelet transform for fault diagnosis of gears was proposed. The phase of vibrati
q4
- 提出了一种基于复解析小波变换的相位诊断齿轮故障的方法。复解析小波变换将Hilbert变换与小波分析紧密结合在一起,具有自适应分析能力。利用复解析小波变换得到齿轮振动信号的相位,其功率谱图上可提取调制边频带结构来识别故障模式。试验结果表明这种方法可有效应用于齿轮局部故障诊断中。-A new method using the phase based on complex analytical wavelet transform for fault diagnosis of gears was pro
q5
- 利用复解析小波变换得到齿轮振动信号的相位,其功率谱图上可提取调制边频带结构来识别故障模式。试验结果表明这种方法可有效应用于齿轮局部故障诊断中。-By making spectrum analysis of the phase, the sideband structure in power spectrum can be protruded, and the fault pattern can be identified. Experimental results show that the p
Digitalcommunication-
- 本文首先介绍了已有的调制识别方法:判决理论识别方法和统计模式识别方法[9],然后详细介绍了基于小波变换调制识别过程,最后分析了数字信号调制识别技术的发展前景。-This paper first introduced the existing modulation identification method: Decision theory identification method and statistics pattern recognition method, Then detailed
Wireless-communication-channel
- 路径损耗,阴影,衰落(瑞利,莱斯和中头m);信号的调制,解调和比特错误率(BER)与SNR曲线-The path loss, shadowing, fading (Rayleigh, Rice and Nakagami-m) signal modulation, demodulation and bit error rate (BER) and the SNR curve
QPSK
- QPSK调制后产生QPSK信号,QPSK信号分别通过AWGN信道、Rayleigh衰减信道和Rician衰减信道,分别通过QPSK解调出数字信号,通过输入与输出数字信号的对比计算出仿真过程中的传输误比率,并将其与各衰减信道的理论误比率进行对比-Generate QPSK signal QPSK modulation, QPSK signals through AWGN channel, Rayleigh fading channel and Rician fading channel, resp
chirp
- 该程序实现了chirp信号的二进制调制及匹配滤波解调,并且求解出了调制的chirp信号通过AWGN信道后的误码率-The program realizes the chirp signal binary modulation and matched filter demodulation, and the solution of the chirp signal through the AWGN channel after the error rate
Subband_beamforming
- 将要传输的信号通过子带结构分成四路信号,分别通过预先调制滤波器组,在接收端收到信号,经过自适应滤波,然后形成一束波(The signal to be transmitted is divided into four signals by subband structure, and the signals are received at the receiving end through the pre modulation filter bank, and then a wave is for