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xiaobobaoyuzhijiangzao
- ：提出一种基于对偶树复小波块阈值的信号降噪方法，并将其成功应用于机械故障诊断中。机械设备的振动信号都或多或少地含有噪声，导致弱故障信息的提取一直是故障诊断的难点和热点。提出的降噪方法充分利用对偶树复小波变换的平移不变性和块阈值法的更优估计特性，可以获得比常规的小波降噪方法以及基于常规离散正交小波变换的 NeighBlock 降噪法更高的信噪比， 不仅能有效抑制高斯白噪声， 还能够去除冲击信号中的脉冲噪声。-：A denoising method of block thresholding bas
BPSKaQPSK
- BPSK与QPSK调制解调系统的Matlab仿真程序； 发送滤波器与接收滤波器均为根升余弦滚降滤波器； 信道噪声为加性高斯白噪声； 绘制BPSK与QPSK调制下的误码率与信噪比曲线图，并与理论曲线进行对比。 -BPSK and QPSK modulation and demodulation systems Matlab simulation program transmit and receive filters are root raised cosine filter
xiaobojiangzaomatlab
- 利用高斯信号产生原始信号，之后再进行小波降噪，结果证明降噪效果良好-The original signal generated by the Gauss signal, and then the wavelet denoising, results show a good noise reduction effect
DSP-FILTER
- 给图形加入高斯白噪声，并用六种不同方法滤波降噪-Gaussian white noise is added to the graphics and filtering noise using six different methods
bqpsk
- BPSK 与QPSK 调制解调系统的Matlab 仿真程序,发送滤波器与接收滤波器均为根升余弦滚降滤波器；信道噪声为加性高斯白噪声 绘制BPSK 与QPSK 调制下的误码率与信噪比曲线图，并与理论曲线进行对比-BPSK and QPSK modulation and demodulation system Matlab simulation program, send and receive filters are root raised cosine filter roll-off fil
white-colored-pink-denoise
- 针对高斯白噪声，高斯色噪声以及色噪声中常见的粉红色噪声进行了降噪处理，并与相关系数法、小波软阈值降噪方法进行了对比- Gaussian white noise, Gaussian colored noise and pink noise have been processed to verify the validity of the algorithm. we also compared the proposed method with the correlation coefficient
BPSK-QPSK
- 分别编写BPSK与QPSK调制解调系统的Matlab仿真程序，要求：发送滤波器与接收滤波器均为根升余弦滚降滤波器；信道噪声为加性高斯白噪声 绘制BPSK与QPSK调制下的误码率与信噪比曲线图，并与理论曲线比较对比-They were written BPSK and QPSK modulation and demodulation system Matlab simulation program requirements: a transmission filter and a recept
chenxu
- 基于MATLAB环境下的信号降噪，通过小波分解略去高斯白噪声，得到真是的信号。-signal denoising
NO3ASK4
- 分别产生符合下列要求的眼图，输入调制方式为2PAM和4PAM，符号率为1Hz，等效信道滤波器为升余弦滚降成形滤波器(缺省滚降系数为0.5)： 1) 无噪声和信噪比为20dB的加性高斯白噪声 2) 升余弦滚降系数分别为0.5和1 3) 受到码间串扰影响，信道参数可设为：ch=[0.9806; -0.1961]；(In accordance with the following requirements of eye respectively, the input modulation mod