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IIRditonglvboqi
- 正弦信号叠加高斯白噪声,通过IIR低通滤波器,并画出时域和频域上的波形频谱图-Sinusoidal signal superimposed Gaussian white noise through the IIR low-pass filter, and draw on the time domain and frequency domain waveform spectrum
DSP
- 先采集一单声道音频信号(.wav)并用WAVREAD文件采样读取,并对其进行频谱分析。分别用窗函数法和双线性变换法设计低通、高通、带通三种FIR滤波器和IIR滤波器。用M文件使信号通过滤波器并对输出信号进行时域和频域分析。-First acquisition of a mono audio signal (. Wav) files with sampling WAVREAD read, and their spectral analysis. Window function, respectiv
sscyf
- 典型窗函数的归一化幅频对数特性,凯泽窗的时域波形,低通滤波器的增益特性比较,实际滤波器的幅频特性-Typical window function of the normalized logarithmic amplitude-frequency characteristics, Kaiser window in time domain waveforms, low pass filter gain characteristics compared to the actual filter amp
04
- 对原图分别在频域内使用理想低通滤波器(选择任意截止频率)和理想高通滤波器(选择任意截止频率)和理想高通滤波器,再对其使用快速傅里叶变换,并输出修复后的图像的频率谱图。最后将高通滤波与低通滤波后的相加,输出,并与原图进行比较。-Respectively of the original image in the frequency domain using the ideal low-pass filter (choose an arbitrary cut-off frequency) and th
Frequency-domain-filtering
- 频域滤波增强实验,内容包括理想低通高通滤波器-Frequency domain filtering
yuyin
- 进入实验界面后,按“输入语音信号”按钮,录入语音信号的数据。对数据进行频谱分析,给出语音信号的波形图和频谱图。设置系统的截止频率,选择给定的系统类型,建立系统函数,并画出系统的频响图。 5. 语音信号频谱与滤波器频响相乘(即对语音信号进行高、低通滤波),得到输出信号的频谱,将所得结果经过傅里叶反变换函数变换为时域信号,绘出处理后信号的波形图,并分别存档。-Into the experimental interface, press " input speech signal"
QPSK
- QPSK调制与解调,低通滤波器采用了时域和频域两种实现方式,截止频率fc = 200hz,采样频率fs= 1000hz,欢迎下载参考!-QPSK modulation and demodulation, using a low-pass filter with a time domain and frequency domain implemented way, the cutoff frequency fc = 200hz, the sampling frequency fs = 1000hz
dajiahao
- 音频信号的合成与滤波 在计算机中录入一段语音信号, 通过Matlab 对语音信号进行时频变换与分析, 同时构造一等长度随机噪声干扰信号, 对两个信号进行合成, 设计一个低通滤波器, 对含噪的语音信号进行滤波处理, 在时域和频域中对信号进行分析比较。-Synthesis and filtering of audio signals
新建文件夹
- 将采集到的数据信号导入MATLAB软件进行处理,查看其信号频谱图,采用频域窗函数法编程设计数字滤波器,实现低通、带通和高通滤波效果。(The collected data is imported into the MATLAB software to process, check the signal frequency spectrum, and design the digital filter with frequency window function method to achieve
IIR一阶低通滤波器
- matlab实现带通滤波,傅里叶变换,得到频域信号,带桶处理(Achieve band pass filter, Fourier transform, get frequency domain signal, with bucket processing.)