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Description: 包含AM调制，DFT，256FFT，FIR和IIR，另外包含所需的子文件Surport，程序都比较精炼，特别适合DSP初学者上手
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Size: 90466 |
Author: cj |
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Description: 包含AM调制，DFT，256FFT，FIR和IIR，另外包含所需的子文件Surport，程序都比较精炼，特别适合DSP初学者上手-AM modulation includes, DFT, 256FFT, FIR and IIR, the other contains a subset of the required documents Surport, procedures are more refined, especially suitable for beginners to use DSP
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Size: 90112 |
Author: cj |
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Description: This a very simple baseband simulator for SC-FDMA system. This simulator is part of the upcoming book “Single Carrier FDMA: A New Air Interface for Long Term Evolution” (Wiley, Nov. 2008) which I co-authored with professor David J. Goodman at Polytechnic University.
The purpose of this simulator is to give some concrete idea of how SC-FDMA system works. It does lack many realistic and sophisticated features such as channel coding, time-varying fading channel model, soft decision decoding, etc. Regardless, I am hoping that it will help you understand SC-FDMA which is a fairly new development in 3GPP LTE.
-This a very simple baseband simulator for SC-FDMA system. This simulator is part of the upcoming book
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Size: 50176 |
Author: jeff.kuo |
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Description: 转载自Rulph Chassaing的源代码,内有函数Adaptc,AdaptIDFIR,adaptidFIRw,AdaptIDIIR,
Adaptnoise,Adaptnoise_pcm,Adaptpredict,
Adaptpredict_pcm,Aliasing,AM,DFT,Dotp4,
dotp4clasm,Dotpintrinsic,Dotpipedfix,
Dotpnp,Echo_control,Factclasm,Fastconvosim,
FFTsinetable,FIR_pcm,FIRcirc_ext,loop_intr_pcm,
Noise_gen,Twosumlasmfloat,sweep8000,
SinegenDE,Scram16k,PLL.等近100个-Reprinted from Rulph Chassaing of the source code, there are function Adaptc, AdaptIDFIR, adaptidFIRw, AdaptIDIIR, Adaptnoise, Adaptnoise_pcm, Adaptpredict, Adaptpredict_pcm, Aliasing, AM, DFT, Dotp4, dotp4clasm, Dotpintrinsic, Dotpipedfix, Dotpnp, Echo_control, Factclasm, Fastconvosim, FFTsinetable , FIR_pcm, FIRcirc_ext, loop_intr_pcm, Noise_gen, Twosumlasmfloat, sweep8000, SinegenDE, Scram16k, PLL. and so on nearly 100
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Size: 1273856 |
Author: JiangChunlin |
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Description: fm=input( Enter the message signal frequency fm= )
fc=input( Enter the carrier frequency fc= )
Am=input( Enter the message signal amplitude Am= )
Ac=input( Enter the carrier signal frequency Ac= )
n=input( Enter the no of DFT points: )
tm=(1/fm)
tc=(1/fc)
nfc=40
t=0:(tc/nfc):4*tm
msg=Am*cos(2*pi*fm*t)
car=Ac*cos(2*pi*fc*t)
Modulation
dsb=msg.*car
AM=(dsb/Ac)+car
figure(1)
subplot(2,1,1)
plot(t,msg)
subplot(2,1,2)
plot(t,car)
figure(2)
subplot(2,1,1)
plot(t,dsb)
subplot(2,1,2)
plot(t,AM) -fm=input( Enter the message signal frequency fm= )
fc=input( Enter the carrier frequency fc= )
Am=input( Enter the message signal amplitude Am= )
Ac=input( Enter the carrier signal frequency Ac= )
n=input( Enter the no of DFT points: )
tm=(1/fm)
tc=(1/fc)
nfc=40
t=0:(tc/nfc):4*tm
msg=Am*cos(2*pi*fm*t)
car=Ac*cos(2*pi*fc*t)
Modulation
dsb=msg.*car
AM=(dsb/Ac)+car
figure(1)
subplot(2,1,1)
plot(t,msg)
subplot(2,1,2)
plot(t,car)
figure(2)
subplot(2,1,1)
plot(t,dsb)
subplot(2,1,2)
plot(t,AM)
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Size: 1024 |
Author: dasu |
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Description: 本程序中包含一个可以通用的头文件，它能够实现DFT，FFT，IFFT，conv，这些函数根据信号处理C语言程序集编写，为了方便理解与调用，我在程序中使用了一些实例，大家可以通过它们做深入理解！-This procedure can include a generic header, it can be achieved DFT, FFT, IFFT, conv, these functions according to the signal processing assembly C language program written for the convenience of understanding with the call, I am in the program uses some of the examples, we can through them, do in-depth understanding!
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Size: 32768 |
Author: yangshoping |
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Description: 本文主要研究内容是3种AM信号数字化解调的算法，即正交解调算法，包络解调算法，平滑离散傅立叶变化（DFT）解调算法，给出相应的解调原理、公式推导以及系统模块。采用MATLAB对一段信号采用3种方法分别进行仿真解调，并对结果进行比较，给出3种方法的优缺点及应用场合。-This article main research content is three AM signal demodulation algorithm, digital orthogonal demodulation algorithm, namely envelope demodulation algorithm, smooth the discrete Fourier transform (DFT) demodulation algorithm, gives the corresponding demodulation principle, formula deduction and the system module.Using MATLAB simulation using three methods respectively to a signal demodulation, and comparing the results, the advantages and disadvantages of three kinds of methods and applications are presented.
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Size: 487424 |
Author: 唐迎春 |
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