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samp7_2
- matlab采用512个频率点绘制各种窗函数的幅频特性
band-pass-filter 线性相位FIR带通滤波器
- 用MATLAB函数fir1设计一个具有如下指标的线性相位FIR带通滤波器：阻带截止频率为0.55pi 和0.85pi，通带截止频率为0.65pi和 0.75pi，最大通带衰减为0.2dB，最小阻带衰减为42dB。分别利用下面的窗函数来设计滤波器：汉宁窗、汉明窗、布莱克曼窗。对于每种情况，给出其冲激响应系数并画出设计的滤波器的幅频响应。-Designed with a MATLAB function with the following indicators fir1 linear phase F
vioce-signal-processing
- 录制自己的一段语音，时间控制在15秒到30秒左右；利用wavread函数对自己的语音进行采样，记住采样频率。 （1）画出原始语音信号的时域波形，而后以1秒为间隔，求出每秒数据的功率谱。 （2）根据语音信号特点，分别设计FIR及IIR滤波器，分别画出滤波器幅频和相频特性曲线。用设计的滤波器对信号滤波，画出滤波后时域波形。用sound函数回放语音信号。 （3）求出特征频段语音信号随时间变化的曲线（每间隔0.05秒求一次功率谱）。 -Record your own voice for
fir-low-pass-filter-design
- 用矩形窗设计了一个FIR线性相位低通数字滤波器。截止频率0.5π，阶数为21阶。求出了系统函数并画出了幅频响应。-A rectangular window design with linear phase FIR low-pass digital filter. Cutoff frequency 0.5π, the order of 21 bands. Find the system function and plotted the amplitude-frequency response.
band-pass-filter-by-remez-function
- 用MATLAB中remez函数设计一带通FIR滤波器。打印出单位脉冲响应 ，并画出幅频响应。-Design using MATLAB function in the vicinity of remez pass FIR filter. Print out the unit impulse response and frequency response plot.
FIR
- 用窗函数法设计一个长度N等于8的线性相位FIR滤波器。其理想的幅频特性为 分别用矩形窗、Hanning窗、Hamming窗、Blackman窗、Kaiser窗(ｂ=8.5)设计该滤波器。 -Window function method used to design a length N equal to 8 the linear phase FIR filter. Its ideal amplitude-frequency characteristics of rectangular w
windowsfunction
- 用matlab编程，采用512个频率点绘制各种窗函数的幅频特性。 -Using matlab programming, 512 frequency points using a variety of window functions mapping amplitude-frequency characteristics.
rectangle
- 用matlab编程绘制矩形窗函数的幅频特性，窗函数形状的长度为10，20，50，100.-Programming using matlab draw rectangle window function of the amplitude-frequency characteristics, the shape of window function of length of 10,20,50,100.
amplitudefrequency
- 用MATLAB使信号x(t)产生函数,并显示信号的幅频特性曲线-Using MATLAB to signal x (t) generating function, and displays signal amplitude-frequency characteristic curve
two_type_of_lowpass
- 用firgr函数设计的两种类型的FIR低通滤波器，( minorder/minodd )边界频率fre_edge=[0 .345 .575 1]*pi 显示幅频特性-Firgr function design with two types of FIR low-pass filter, (' minorder/minodd' ) boundary frequency fre_edge = [0 .345 .575 1]* pi shows the amplitude frequen
Hz
- 由 得到幅频响应 。系统函数 由下式给出： （A.1） 若 ，则 为一全极点IIR系统，若 ，则 为FIR系统-By the frequency response obtained. System function is given by: (A.1) if, compared to an all-pole IIR system, if, for the FIR system
13
- 这里有两个matlab的应用实例，一个是函数的积分，一个是幅频图像的绘制，希望对去学matlab的人能有所帮助-there are two examples for matlab,one is designed for function integral and another is desined to draw amplitude frequency
34
- 根据滤波器指标选择合适的窗函数，计算窗函数的长度N，调用MATLAB函数fir1设计一个FIR低通滤波器。并编写程序，调用MATLAB快速卷积函数fftfilt实现对xt的滤波。绘图显示滤波器的频响特性曲线、滤波器输出信号的幅频特性图和时域波形图。
aboutTC
- TC环境下C语言实现的类似于matlab的数字信号和数字系统分析。使用图形界面，具有坐标显示。可以有z变换后的系统函数直接分析系统的幅频和相频响应-TC C language environment similar to matlab digital signal and digital systems analysis. Use graphical interface, with coordinates display. Z-transform can be directly after th
fir-high
- 用汉宁窗函数法设计一个数字FIR高通滤波器，要求通带边界频率为500Hz，阻带边界频率为400Hz，通带最大衰减1dB，阻带最小衰减40dB，抽样频率为2000Hz，用MATLAB画出幅频特性，画出并分析滤波器传输函数的零极点-With han ning window function method to design a digital FIR high-pass filter, request bandpass boundary frequency for 500 Hz, stop-band
FFT
- 采用快速傅里叶变化，进而获得函数的相频特性和幅频特性-Phase frequency characteristics amplitude-frequency characteristics using the fast Fourier transform, and then get the function
fuPinTeXing
- 控制系统MATALB分析，利用开环传递函数求取其幅频特性并作图的MATLAB例程，有一定的参考价值-Control system MATALB analysis, the use of open-loop transfer function to strike its amplitude-frequency characteristics and mapping MATLAB routines, there is some reference value
FIR
- 用窗函数设计FIR数字滤波器的原理及方法，熟悉线性相位FIR滤波器的幅频特性和相位特性-Using the principle and method of the window function design FIR digital filter with linear phase FIR filter, amplitude frequency characteristics and phase characteristics
xtxy
- 已知系统转移函数，求冲击响应，阶跃响应，幅频响应和相频响应-Known system transfer function, impulse response seeking, step response, frequency response and phase-frequency response
chengxu
- 求频响函数的实频、虚频、幅频、相频及Nyqiust图-Strives for the frequency response function of the real or imaginary frequency, amplitude frequency and phase frequency and Nyqiust figure