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产生15种模拟及数字调制信号函数。参数说明:type-调制信号种类,total_time-信号总时间长度,fc-载频,fs-抽样频率,symbol_rate-符号率-have 15 analog and digital modulation signal function. Parameter Description : type-modulated signal types,'04-Signal total time length, fc-carrier frequency, fs-sampling frequency, symbol_rate-Symbol Rate
Update : 2008-10-13 Size : 1.16kb Publisher : htt

DL : 0
fm调制和解调,matlab语言实现,可以改变fs,fc,ft
Update : 2008-10-13 Size : 944byte Publisher : sharny

demodulates the FM modulated signal Y at the carrier frequency Fc (Hz). Y and Fc have sample frequency Fs (Hz). FREQDEV is the frequency deviation (Hz) of the modulated signal.
Update : 2008-10-13 Size : 1.1kb Publisher : sharny

uses the message signal X to modulate the carrier frequency Fc (Hz) and sample frequency Fs (Hz), where Fs > 2*Fc. FREQDEV (Hz) is the frequency deviation of the modulated signal.
Update : 2008-10-13 Size : 1.1kb Publisher : sharny

fir滤波器的设计,此滤波器 Fs为44kHz,Fc为10.4kHz。
Update : 2008-10-13 Size : 964.31kb Publisher : fdf

产生15种模拟及数字调制信号函数。参数说明:type-调制信号种类,total_time-信号总时间长度,fc-载频,fs-抽样频率,symbol_rate-符号率-have 15 analog and digital modulation signal function. Parameter Description : type-modulated signal types,'04-Signal total time length, fc-carrier frequency, fs-sampling frequency, symbol_rate-Symbol Rate
Update : 2025-02-19 Size : 1kb Publisher :

DL : 0
fm调制和解调,matlab语言实现,可以改变fs,fc,ft-fm modulation and demodulation, matlab language, can change the fs, fc, ft
Update : 2025-02-19 Size : 1kb Publisher : sharny

demodulates the FM modulated signal Y at the carrier frequency Fc (Hz). Y and Fc have sample frequency Fs (Hz). FREQDEV is the frequency deviation (Hz) of the modulated signal.
Update : 2025-02-19 Size : 1kb Publisher : sharny

fir滤波器的设计,此滤波器 Fs为44kHz,Fc为10.4kHz。-fir filter design, this filter Fs for 44kHz, Fc for 10.4kHz.
Update : 2025-02-19 Size : 964kb Publisher : fdf

DL : 0
通信信号相干调制解调源码 Fc=10 %载频 Fs=40 %系统采样频率 Fd=1 %码速率 N=Fs/Fd df=10 numSymb=25 %进行仿真的信息代码个数 M=2 %进制数-Coherent modulation and demodulation of communication signal source Fc = 10 carrier frequency Fs = 40 systematic sampling frequency Fd = 1 code rate N = Fs/Fd df = 10 numSymb = 25 of the information code to simulate the number of M = 2 hexadecimal number
Update : 2025-02-19 Size : 1kb Publisher : 包耐峰

Matlab的M文件编写的数控插补2D直线算法仿真。具体参数可使用:X-500,Y-600,Fc-600,Fs-0,Fa-0,at--200.仿真的本意是为了验证DSP上同类插补算法的正确性-Matlab M-file to prepare the CNC interpolation algorithm for 2D simulation of a straight line. Specific parameters can be used: X-500, Y-600, Fc-600, Fs-0, Fa-0, at- 200. The simulation is intended to verify the DSP on the correctness of the same interpolation algorithm
Update : 2025-02-19 Size : 1kb Publisher : 雷鸣

我对一个输入调制信号:采样率FS=1200K,中心频率F0=300K,带宽300K。输入信号为一个[样点数,2]的矩阵,即I,Q两路. 进行频谱搬移,分为I,Q分量两路进行矢量乘法,NCO的设置为FC=300K,t=样点数乘以1/FS, 乘完以后我的频谱上显示竟然信号带宽增加了300K,但是中心频率没有改变,请问各位朋友是哪儿出了问题?谢谢您的阅读和意见-Digital Down Converter for matlab realized, certain design specifications that can be used to know VHDL Programming
Update : 2025-02-19 Size : 22kb Publisher : Jose

Demodulating the signal. DeAmpMod = (1/2).*(ademod(AmpMod,Fc,Fs, amdsb-sc ,num,den)) (ALTERNATIVE APPROACH) DeAmpMod = AmpMod.*Cs Designing butterworth low pass filter. [num,den] = butter(2,.8) FilteredOutput = filter(num,den,DeAmpMod) Plotting the input speech signal data . subplot(2,2,1) axis normal plot(data) grid on title( Initial Speech Signal ) xlabel( Samples ) ylabel( Speech Signal ) Plotting the modulated speech signal AmpMod . subplot(2,2,2) axis normal plot(AmpMod) title( Modulated Speech Signal ) xlabel( Samples ) ylabel( Modulated Signal )- Demodulating the signal. DeAmpMod = (1/2).*(ademod(AmpMod,Fc,Fs, amdsb-sc ,num,den)) (ALTERNATIVE APPROACH) DeAmpMod = AmpMod.*Cs Designing butterworth low pass filter. [num,den] = butter(2,.8) FilteredOutput = filter(num,den,DeAmpMod) Plotting the input speech signal data . subplot(2,2,1) axis normal plot(data) grid on title( Initial Speech Signal ) xlabel( Samples ) ylabel( Speech Signal ) Plotting the modulated speech signal AmpMod . subplot(2,2,2) axis normal plot(AmpMod) title( Modulated Speech Signal ) xlabel( Samples ) ylabel( Modulated Signal )
Update : 2025-02-19 Size : 1kb Publisher : dasu

光纤通道协议,包括FC-SW,FC-FS,FC-LS,FC-GS,FC-HBA,FC-AE-ASM等文档。-Fibre Channel protocols, including FC-SW, FC-FS, FC-LS, FC-GS, FC-HBA, FC-AE-ASM and other documents.
Update : 2025-02-19 Size : 7.89mb Publisher : 秦清全

DL : 0
FM without noise Fs = input( enter the value of Fs ) Sampling rate of signal Fc = input( enter the value of Fc ) Carrier frequency t = [0:Fs] /Fs Sampling times x = sin(2*pi*20*t) +2*sin(2*pi*60*t) Channel dev = input( enter the value of dev ) Frequency deviation in modulated signal y = fmmod(x,Fc,Fs,dev) Modulate both channels. z = fmdemod(y,Fc,Fs,dev) Demodulate both channels. figure subplot(3,1,1) plot(x) subplot(3,1,2) plot(y) subplot(3,1,3) plot(z) -FM without noise Fs = input( enter the value of Fs ) Sampling rate of signal Fc = input( enter the value of Fc ) Carrier frequency t = [0:Fs] /Fs Sampling times x = sin(2*pi*20*t) +2*sin(2*pi*60*t) Channel dev = input( enter the value of dev ) Frequency deviation in modulated signal y = fmmod(x,Fc,Fs,dev) Modulate both channels. z = fmdemod(y,Fc,Fs,dev) Demodulate both channels. figure subplot(3,1,1) plot(x) subplot(3,1,2) plot(y) subplot(3,1,3) plot(z)
Update : 2025-02-19 Size : 211kb Publisher : Gan JJ

mqam demodultion code with fc,fs,fd,M and ini_phase parameter
Update : 2025-02-19 Size : 1kb Publisher : af

DL : 0
empirical formula with kaiser clc clear all fs=1000 fc=250 df=50 r=0.001 f=fc/fs dw=2*pi*(df/fs) a=-20*log(r) n=floor(((a-8)/(2.285*dw))+1) if a>50 b=0.1102*(a-8.7) elseif a>=21 && a<=50 b=0.5842*((a-21)^0.4)+0.07886*(a-21) elseif a<21 b=0.0 end w=kaiser(n,b) for i=1:n if i~=(n-1)/2 hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f) elseif i==(n-1)/2 hd(i)=2*f end end for j=1:n h(j)=w(j)*hd(j) end subplot(3,1,1), plot(w) subplot(3,1,2), plot(h) subplot(3,1,3), plot(h,n) - empirical formula with kaiser clc clear all fs=1000 fc=250 df=50 r=0.001 f=fc/fs dw=2*pi*(df/fs) a=-20*log(r) n=floor(((a-8)/(2.285*dw))+1) if a>50 b=0.1102*(a-8.7) elseif a>=21 && a<=50 b=0.5842*((a-21)^0.4)+0.07886*(a-21) elseif a<21 b=0.0 end w=kaiser(n,b) for i=1:n if i~=(n-1)/2 hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f) elseif i==(n-1)/2 hd(i)=2*f end end for j=1:n h(j)=w(j)*hd(j) end subplot(3,1,1), plot(w) subplot(3,1,2), plot(h) subplot(3,1,3), plot(h,n)
Update : 2025-02-19 Size : 80kb Publisher : rezwan

empirical formula with kaiser clc clear all fs=1000 fc=250 df=50 r=0.001 f=fc/fs dw=2*pi*(df/fs) a=-20*log(r) n=floor(((a-8)/(2.285*dw))+1) if a>50 b=0.1102*(a-8.7) elseif a>=21 && a<=50 b=0.5842*((a-21)^0.4)+0.07886*(a-21) elseif a<21 b=0.0 end w=kaiser(n,b) for i=1:n if i~=(n-1)/2 hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f) elseif i==(n-1)/2 hd(i)=2*f end end for j=1:n h(j)=w(j)*hd(j) end subplot(3,1,1), plot(w) subplot(3,1,2), plot(h) subplot(3,1,3), plot(h,n) - empirical formula with kaiser clc clear all fs=1000 fc=250 df=50 r=0.001 f=fc/fs dw=2*pi*(df/fs) a=-20*log(r) n=floor(((a-8)/(2.285*dw))+1) if a>50 b=0.1102*(a-8.7) elseif a>=21 && a<=50 b=0.5842*((a-21)^0.4)+0.07886*(a-21) elseif a<21 b=0.0 end w=kaiser(n,b) for i=1:n if i~=(n-1)/2 hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f) elseif i==(n-1)/2 hd(i)=2*f end end for j=1:n h(j)=w(j)*hd(j) end subplot(3,1,1), plot(w) subplot(3,1,2), plot(h) subplot(3,1,3), plot(h,n)
Update : 2025-02-19 Size : 529kb Publisher : rezwan

DL : 0
Fibre Channel Framing and Signalling definitions. From T11 FC-FS-2 Rev 0.90 - 9 August 2005.
Update : 2025-02-19 Size : 4kb Publisher : rieqxtx

Fibre Channel Framing and Signalling definitions. From T11 FC-FS-2 Rev 0.90 - 9 August 2005 Source Code for Embedded Linux.
Update : 2025-02-19 Size : 4kb Publisher : seibfrr
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