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IIR滤波器设计
- 现有一个信号：x(n)=1+cos(π*n/4)+ cos(2*π*n/3)设计及各种数字滤波器以达下列目的： 低通滤波器，滤除cos(2*π*n/3) 的成分，即想保留的成分为1+cos(π*n/4) 高通滤波器，滤除1+cos(π*n/4) 的成分，即想保留的成分为cos(2*π*n/3) 带通滤波器，滤除1+cos(2*π*n/3) 的成分，即想保留的成分为cos(π*n/4) 带阻滤波器，滤除cos(π*n/4) 的成分，即想保留的成分为1+cos(2*π*n/3)
ofdmphn_Evm
- 利用Matlab编程模擬phase noise對OFDM signal的影響,希望供大家参考,Error vector magnitude (EVM) -simulation using Matlab programming phase noise of the impact of the OFDM signal hope that for your reference, Error vector magnitude (EVM)
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
ST
- 本程序是基于S变换的短时电能质量扰动检测方法实现的，用于分析电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析-This procedure is based on the S transform short-term power quality disturbance detection method implemented for the analysis of voltage sag magnitude, phase transition, duration, and harmonic
EVM
- 该算法是经典的信噪比估计算法——误差矢量幅值法，通过计算接收信号中同相分量和正交分量的二、四阶矩，该算法能够很好的估计信号的信噪比-The algorithm is a classic signal to noise ratio estimation algorithm- the error vector magnitude method, by calculating the received signal with the phase component and quadrature com
FIRWindowstechnique.m
- scr ipt for designing FIR filter low pass with lineal phase & cut-frecuency equal to obtained from a IRR Filter. Windows used: a)Rectangular window. b)Hamming window. c)Kaiser window. "Calculus of the windows are obtained
IIRButterworthfilter.m
- scr ipt to design an IIR Filter low pass using Butterworth & lineal transformation to convert from analogic to digital a prototype filter. by actinio vjgonzalezg@gmail.com :) It plots: 1-Frecuency response of the filter imp
fftplot
- compute and/or plot the magnitude in dB and phase in degrees of the FFT data in Y
ex03
- 信号的时间宽度和频率带宽反映的是 、 围绕 和 的扩展程度，信号的带宽（ ）完全由幅度、幅度的导数及相位的导数所决定。称T和B分别为信号 的时宽和带宽，TB称为时宽－带宽积,。此程序用于计算信号的时间宽度和频率带宽。-Signal time width and frequency bandwidth of reflected that and it spreads around the signal bandwidth () completely by the magnitude, amplit
fft
- 产生一个正弦衰减曲线，进行快速傅里叶变换，并画出幅值图，相位图，实部图，虚部图-Decay to produce a sine curve, the fast Fourier transform, and draw magnitude diagram, phase diagram, the real figure, the imaginary part of Fig.
fftfenxi
- 对一个模拟信号进行fft变换，并求出其幅值图和相位图，对于fft初学者会有一定的用途-An analog signal fft transform, and find its magnitude and phase diagrams, for beginners there will be some use of fft
power_3phsignaldq
- A Discrete 3-Phase ProgrammableSource block is used to generate a 1 pu, 15 degrees positive sequence voltage. At t = 0.05 s the positive sequence voltage is increased to 1.5 pu. At t = 0.1 s an unbalance is introduced by adding a 0.3 pu negative sequ
phae1
- suppose we r having ECG disease data in time-domain plot, with the help of these code. we generate the magnitude diagram of the ECG.by using continuous wavelet transform.at different scale also we can plot phase,contour plot.-suppose we r having ECG
FIRBSF_v3
- Design a linear phase minimum order FIR Band Stop filter to stop the frequency band 0.45π to 0.55π with atleast 60dB attenuation at the edges. Further -3dB frequencies are required to be at 0.3π and 0.7π. 1. Plot the frequency response of the psue
FFT_angle_A
- 利用fft来估计幅值和相位，打算和随机共振一起使用的-Use fft to estimate the magnitude and phase, intended to be used together and stochastic resonance
freqz_m
- 求取系统的绝对幅度响应、相对的db值幅度响应、相位响应和群延时响应的函数-The absolute magnitude of the strike system response, a function of the relative a dB value amplitude response, phase response and group delay response
newton
- Power flow studies, commonly known as load flow, form an important part of power system analysis. They are necessary for planning, economic scheduling and control of an existing system as well as planning its future expansion. The problem consist
OFDM_QAM_1
- 多载波调试的正交频分复用技术 包括正交振幅键控技术 四相相移键控信号等其它技术 其误码率在千分之几数量级 非常实用-Multi-carrier debugging orthogonal frequency division multiplexing quadrature amplitude shift keying technology quadrature phase shift keying signal other technologies, such as the bit error r
MAGNITUDE-AND-PHASE-RESPONSE-OF-BANDPASS-AND-STOP
- MAGNITUDE AND PHASE RESPONSE OF BANDPASS AND BANDSTOP FILTER
MAGNITUDE-AND-PHASE-RESPONSE-OF-HIGHPASS-AND-LOWP
- MAGNITUDE AND PHASE RESPONSE OF HIGH AND LOWPASS FILTER