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Description: MIMO OutageCapacity vs SNR
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Size: 1024 |
Author: LD |
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Description: 本程序对rake接收机的仿真程序
在matlab simulink下实现，其信道模型采用802.15.3a信道，信源部分的采用UWB信号，最后通过计算snr与errorbitrate来说明rake接收机性能-this program right rake receiver in the simulation program under Matlab Simulink. its channel model used 802 .15.3 a letter, the source of the signal using UWB, Finally, with errorbitrate snr calculated to illustrate rake receiver performance
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Size: 24576 |
Author: volvo827 |
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Description: This program includes:
[5 7] convolutional code (encoder) + BPSK + AWGN + MAP (decoder). It evaluates Bit Error Rate and plots it versus SNR(signal to Noise Ratio).
-This program includes:
[5 7] convolutional code (encoder)+ BPSK+ AWGN+ MAP (decoder). It evaluates Bit Error Rate and plots it versus SNR(signal to Noise Ratio).
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Size: 1024 |
Author: 阳关 |
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Description: 一个计算2副图像之间的峰值信噪比（PSNR）的matlab程序。-A calculation between two images of the peak signal to noise ratio (PSNR) of the matlab program.
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Size: 30720 |
Author: chenkaizhi |
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Description: D-S.Kim, Y.S.Lee, W.H.Kwon, and H.S.Park, "Maximum Allowable Delay Bounds in Networked Control Systems", Control Engineering Practice (Elsvier Science) (Simulation Example - Matlab Code), PP.1301-1313, Vol.11, Issue 11, December, 2003-D-S.Kim, Y.S.Lee, W.H.Kwon, and H.S.Park, "Maximum Allowable Delay Bounds in Networked Control Systems", Control Engineering Practice (Elsvier Science) (Simulation Example- Matlab Code), PP.1301-1313, Vol.11, Issue 11, December, 2003
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Size: 3072 |
Author: 田之秋 |
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Description: 小波变换处理带噪语音信号，对于低信噪比的情况下相当有效，直接改文件名就可完成-Wavelet Transform of Noisy Speech signal processing for low SNR case quite effectively, direct to the file name can be completed
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Size: 1024 |
Author: 杨新华 |
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Description: In this project we analyze and design the minimum mean-square error (MMSE) multiuser receiver for uniformly quantized synchronous code division multiple access (CDMA) signals in additive white Gaussian noise (AWGN) channels.This project is mainly based on the representation of uniform quantizer by gain plus additive noise model. Based on this model, we derive the weight vector and the output signal-to-interference ratio (SIR) of the MMSE receiver. The effects of quantization on the MMSE receiver performance is characterized in a single parameter named 鈥漞quivalent noise variance鈥? The optimal quantizer stepsize which maximizes the MMSE receiver output SNR is also determined.-In this project we analyze and design the minimum mean-square error (MMSE) multiuser receiver for uniformly quantized synchronous code division multiple access (CDMA) signals in additive white Gaussian noise (AWGN) channels.This project is mainly based on the representation of uniform quantizer by gain plus additive noise model. Based on this model, we derive the weight vector and the output signal-to-interference ratio (SIR) of the MMSE receiver. The effects of quantization on the MMSE receiver performance is characterized in a single parameter named 鈥漞quivalent noise variance鈥? The optimal quantizer stepsize which maximizes the MMSE receiver output SNR is also determined.
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Size: 147456 |
Author: prasad |
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Description: 摘要:为了提高图像复原算法的性能 ,提出了一种改进的奇异值分解法估计图像的点扩散函数。从图像的退化离散模型
出发 ,对图像进行逐层分块奇异值分解 ,并自动选取奇异值重组阶数以减少噪声对估计的影响。利用理想图像奇异值向
量平均能谱指数模型 ,估计点扩散函数奇异值向量的频谱 ,再反傅里叶变换得到其时域结果。实验结果表明 ,该方法能
在不同信噪比情况下估计成像系统的点扩散函数 ,估计结果比原有估计方法有所提高 ,有望为图像复原算法的预处理提
供一种有效的手段。-Abstract : To improve the performance of image restoration algorithms , a modified Singular Value De2
[ ] [ ]
composition SVD method was proposed to estimate the Point Spread Function PSF of an imaging
system. Using the discrete image degradation model , a block2based SVD filter scheme was applied for
the image denoising with an automatically determined singular value rank. After the spectra of PSF
singular vectors were estimated under an exponential model for the averaged spectra of un2degraded
image singular vectors , the IFFT was used to get the time2domain estimation of the PSF. The experi2
mental results show that this proposed method can be applied to estimate the PSF of the imaging sys2
tem under a wide SNR range and its performance is better than the original method. It may be used as
an effective method for the image preprocessing in image restoration problems.
[ ]
Key words: image restoration Point Spread Function PSF block2based Singular Value Decomposi2
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Size: 476160 |
Author: zy |
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Description: 提出了一个采用(2,1,7)卷积码+QPSK的中频调制解调方案,并在Xilinx公司的100万
门FPGA芯片上实现了该系统。该系统在信噪比SNR为6dB左右时可实现速率超过1Mbit/s、误码率
小于10-5的数据传输。
-Proposed a use of (2,1,7) convolutional code+ QPSK modulation and demodulation of the IF program, and in Xilinx' s FPGA chip one million on implementation of the system. The system SNR to 6dB signal to noise ratio at about the rate may achieve more than 1Mbit/s, less than 10-5 bit error rate of data transmission.
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Size: 62464 |
Author: 张同星 |
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Description: 很好的OFDM的基于MATLAB的仿真程序包，且包含了最终结果图.-montecarlo
type montecarlo in the command window and wait for a long time..
_simulation of the complete OFDM system.
_use of a very large file in order to get probabilities.
_loop over different value of the noise.
_compute the SNR for each value of the noise.
_provide the SNR/BER plot.
if you are in a rush : simulation_system !!
go into the right folder and type simulation_system in the command window.
_then type the value of the noise power (range = [-20,10])
_the function provides the channel estimation, the bit allocation,
and a plot illustrating the errors.
_this is a fast function (less pilot, no synchronization, small file).
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Size: 96256 |
Author: 田静 |
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Description: We simulate uncoded BER of BPSK modulated
data as a function of SNR
-in an AWGN channel
-in a Rayleigh fading channel
-in an AWGN channel when direct sequence spreading
is used
and compare results to the theoretical ones.
We assume coherent receiver and perfect
synchronization.- We simulate uncoded BER of BPSK modulated
data as a function of SNR
-in an AWGN channel
-in a Rayleigh fading channel
-in an AWGN channel when direct sequence spreading
is used
and compare results to the theoretical ones.
We assume coherent receiver and perfect
synchronization.
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Size: 18432 |
Author: Erfaan |
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Description: 融合中心进行SNR比较的协作频谱检测算法仿真程序-SpectrumD etection Based On Central SNR Comparison
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Size: 3072 |
Author: 周杰 |
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Description: 求数字图像处理后的评价参数（SNR）信噪比，matlab原程序！-After the digital image processing for the evaluation parameters (SNR) signal to noise ratio, matlab original program!
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Size: 1024 |
Author: 胡晓明 |
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Description: OFDM 系统信噪比估计，matlab源代码-OFDM system, SNR estimation, matlab source code
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Size: 5120 |
Author: lulu |
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Description: 在MATLAB环境下仿真瑞利信道容量与信噪比的关系-In MATLAB simulation Rayleigh channel capacity and SNR relationship
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Size: 1024 |
Author: 王松 |
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Description: Code matlab: BER,SER,SNR in cooperation network
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Size: 145408 |
Author: quang anh |
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Description: showing the graph of channel capacity and SNR in uplink LTE
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Size: 11264 |
Author: Muthia
|
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Description: showing the the graph of channel capacity and SNR in AWGN of LTE
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Size: 12288 |
Author: Muthia
|
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Description: showing the graph of channel capacity and snr in FSI of LTE
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Size: 12288 |
Author: Muthia
|
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Description: 用MATLAB编写的2收2发的带衰落性的信道的MOMO-OFDM(In MATLAB 2-2 of the decaying channel momo-ofdm)
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Size: 1024 |
Author: zhangxiao
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