搜索资源列表
ber
- Bit error probability curve for QPSK mimo 1*2, Bit error probability curve for QPSK mimo 1*4-Bit error probability curve for QPSK mimo 1*2, Bit error probability curve for QPSK mimo 1*4
3
- 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 : T
QPSK
- 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
simulation.example.with.matlab
- 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 assum
noise
- This matlab file is used to generate noise signal which is added to the transmitted signal in an AWGN channel. Based on the SNR value the power of the noise is determined.
l11-demo1
- Introduce the Multiuser Detection (MUD) for DS-CDMA system Give two MUD methods for DS-CDMA system –Decorrelating MUD –Subspace MMSE MUD Compare them with traditional decorrelating detection Study the BER vs. S
GMSK
- 为了提高移动通信系统中数据传输的有效性能,降低GMSK调制系统的误码率. 首先对GMSK调制系统进行分析,得到不同BT值GMSK调制的移动通信系统误码率和带宽的关系.通过引入具有纠错性能的编码技术,降低信息传输的误码率,提高系统的有效性. 本文给出了引入编码技术的GMSK调制系统的仿真模型,仿真结果表明,在相同的信噪比下,系统的误码率降低了1~2dB.-This paper mainly intends to improve the performance of the communicatio
uncodedBER
- the file which is uploaded is the uncoded systtem technique which we simulated. it gives the BER vs Snr curve.The un-coded system is simulated is by using randomly generated numbers and it s passed over the AWGN channel.the output of the matlab file
DF-and-AF
- 该程序是使用Matlab仿真协同通信的DF(解码转发)基本性能,基本模型S-R-D三个节点,接收端使用MRC(最大比合并)。固定DF由于SR信道的错误,其性能受到限制,在大SNR情况下不能获得有效分集。而当SR距离足够近的时候,可能获得一定的分集增益。-AF and DF simulation procedure code
1
- 计算均方误差MSE信噪比SNR峰值信噪比PSNR绝对平均误差的matlab函数-Calculate the mean square error MSE, SNR is the peak signal to noise ratio PSNR absolute average error of Matlab functions
matlab-add-Gaussian-white-noise
- 描述如何在信号中添加白噪声和已知信噪比的高斯白噪声!-Describe how to add white noise in the signal and known SNR Gaussian white noise!
LFM
- LFM线性调频波的MATLAB仿真 利用matlab软件设计匹配滤波器。具体包括: 1):阐述脉冲压缩(匹配滤波)的基本原理; 2):输入信号为线性调频信号,存在的噪声信号为白噪声; 3):通过脉冲压缩处理,讨论输出信噪比的改善。 -The the LFM chirp wave MATLAB simulation using matlab software design matched filter. Specifically including: 1): elaborat
M2M4method-SNR-estimation
- 一种基于信号二阶四阶矩的信噪比估计方法,该文件中包含该方法的文章以及matlab程序。-This estimation method is based on the signal second-order signal-to-noise ratio of the fourth moment. The file contains a paper and a code.
simulate_data_SNR
- matlab simulation for calculating SNR
matlab-junheng
- 均衡技术的matlab仿真。包括时域均衡和频域均衡后的信噪比对比-Equalization matlab simulation. Including time domain equalization and frequency domain equalization SNR comparison
123426
- 注水算法是根据某种准则,并根据信道状况对发送功率进行自适应分配,通常是信道状况好的时刻,多分配功率,信道差的时候,少分配功率,从而最大化传输速率。本文运用matlab通过对注水算法在mino系统中的三种不同的情况下进行了仿真,比较出在小信噪比时,相同信噪比下利用CSI的功率注水算法获得容量优于未知CSI的平均功率分配算法;相同容量下已知CSI信噪比比未知CSI时的信噪比小3dB.当信噪比增大到一定程度时,功率注水算法所获得的信道容量将收敛到平均功率分配的信道容量。-Water flooding
BERvsSNR
- Matlab code for explain the relation between BER and SNR for different Modulation-Matlab code for explain the relation between BER and SNR for different Modulation
The-relationship-of-SNR-and-erfc
- 数字通信系统中通过给定信噪比与误码率,得出他们关系的Matlab模拟-Digital communication system by a given signal to noise ratio and bit error rate, Matlab simulation results of their relationship
求解SNR
- 求解SNR的一个小程序,使用matlab编写的源程序,效果不错。
vgdbd
- 现代信号处理中谱估计在matlab中的使用,最大信噪比的独立分量分析算法,多元数据分析的主分量分析投影。- Modern signal processing used in the spectral estimation in matlab, SNR largest independent component analysis algorithm, Principal component analysis of multivariate data analysis projection.