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Description: 基于matlab的cdma系统仿真程序，包括 gold码异步时计算误码率程序，高斯白噪声发生程序-based on the CDMA system Matlab simulation program, Asynchronous yards, including gold at the bit error rate calculation procedures, Gaussian white noise process occurred
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Size: 93962 |
Author: vvs |
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Description: 生成一个正弦信号，并加入白噪声，得到正弦信号以及白噪声的混合信号，通过低通滤波器对白噪声进行处理-generate a sinusoidal signal, and add white noise, sinusoidal signal to be white noise and mixed-signal, through low-pass filter white noise processing
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Size: 67042 |
Author: 谢晓丹 |
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Description: 程序代码说明
P0301：数字图像矩阵数据的显示及其傅立叶变换
P0302：二维离散余弦变换的图像压缩
P0303：采用灰度变换的方法增强图像的对比度
P0304：直方图均匀化
P0305：模拟图像受高斯白噪声和椒盐噪声的影响
P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
P0308：图像的自适应魏纳滤波
P0309：运用5种不同的梯度增强法进行图像锐化
P0310：图像的高通滤波和掩模处理
P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理
P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理
-code P0301 : digital image data matrix display and Fourier Transform P0302 : two-dimensional discrete cosine transform image compression P0303 : using gray transform method to enhance the contrast of the image P0304 : histogram equalization P0305 : simulation images by Gaussian white noise and pepper noise impact P0306 : using 2D median filtering function medfilt2 right by the Salt and Pepper noise filtering images P0307 : MATLAB functions filter2 of noise interference filter images mean P0308 : Image Adaptive Filter WEI Na-P0309 : using five different gradient Enhancement Act for image sharpening P0310 : images of high-pass filtering and mask handling P0311 : use Butterworth (Butterworth) low-pass filter on the noise in the image smoothing P 0312 : Butterworth (Butterworth) high-pass filt
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Size: 10714 |
Author: xueke |
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Description: 程序代码说明
P0301：数字图像矩阵数据的显示及其傅立叶变换
P0302：二维离散余弦变换的图像压缩
P0303：采用灰度变换的方法增强图像的对比度
P0304：直方图均匀化
P0305：模拟图像受高斯白噪声和椒盐噪声的影响
P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
P0308：图像的自适应魏纳滤波
P0309：运用5种不同的梯度增强法进行图像锐化
P0310：图像的高通滤波和掩模处理
P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理
P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理
-code P0301 : digital image data matrix display and Fourier Transform P0302 : two-dimensional discrete cosine transform image compression P0303 : using gray transform method to enhance the contrast of the image P0304 : histogram equalization P0305 : simulation images by Gaussian white noise and pepper noise impact P0306 : using 2D median filtering function medfilt2 right by the Salt and Pepper noise filtering images P0307 : MATLAB functions filter2 of noise interference filter images mean P0308 : Image Adaptive Filter WEI Na-P0309 : using five different gradient Enhancement Act for image sharpening P0310 : images of high-pass filtering and mask handling P0311 : use Butterworth (Butterworth) low-pass filter on the noise in the image smoothing P 0312 : Butterworth (Butterworth) high-pass filt
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Size: 670098 |
Author: tiantian |
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Description: 数字通信仿真程序，BPSK调制在高斯白噪声信道下的误码率分析。-digital communications simulation program, BPSK modulation in Gaussian white noise channel BER analysis.
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Size: 2246 |
Author: 秦问 |
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Description: 产生（７，４，３）＊（７，４，３）的分组turbo码，并模拟在高斯白噪声条件下的传输的过程．-20 (7,4,3) * (7,4,3), a turbo codes, simulation and Gaussian white noise in the transmission conditions of the process.
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Size: 1256 |
Author: 刘德庆 |
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Description: 该文件夹为空间复用空时码的仿真程序，天线配置为2发2收。
主要程序的用途说明：
mainMIMO_OFDMA_2Tx.m: 主程序，设置各种参数
gendata_2Tx_SM.m: 生成原始信息数据的程序
mod_2Tx_SM_DFUSC.m：调制程序
gen_SUI_CorrCIR.m: 生成信道冲击响应的程序
get_perfectCE_2x2.m: 生成理想信道估计值的程序
chanSUI_corr_2x2.m: 发送信号通过SUI信道的程序
addAWGN_2x2.m: 添加高斯白噪声的程序
dem_DFUSC_2x2_SM.m: 接收端解调主程序
ls_freq.m: 频域LS算法
ls_time_2x2.m: 时域LS算法
ZeroForcing_Detection.m: 迫零检测算法
mmse_Detection.m: MMSE检测算法
sphere_decoding.m: 球形检测算法-The folder for space reuse the space-time simulation program code, antenna configuration for the two 2 admission. The main purpose procedures : mainMIMO_OFDMA_2Tx.m : The main program, gendata_2Tx_SM.m set various parameters : Data generated primitive procedures mod_2Tx_SM_DFUSC.m : gen_SUI_CorrCIR.m modulation procedures : Generation channel impulse response procedures get_perfectCE_2x2.m : Generation ideal channel estimation procedures chanSUI_corr_2x2.m : SUI transmitted signal through the channel addAWGN_2x2.m procedures : adding Gaussian white noise process dem_DFUSC_2x2_SM.m : receiver demodulator main program ls_freq.m : frequency-domain algorithm ls_time_2x2.m LS : time-domain algorithm ZeroForcing_Detection.m LS : Zero-forcing mmse_Detection.m Detection Algorithm : MMSE detection
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Size: 16960 |
Author: astraeawang |
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Description: 产生均匀分布的随机白噪信号,并观察数据分布的直方图-have a uniform distribution of random white noise signal, and observed data distribution histogram
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Size: 1464 |
Author: liuyang |
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Description: bpsk调制解调M文件，在加入高斯白噪声的情况下，计算出误码率。-bpsk modulation and demodulation M documents in the Gaussian white noise to the situation, the calculated error rate.
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Size: 936 |
Author: leekm |
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Description: This a software runing on the matlab, it is used in the channel coding simulation.
It include DVB-S2 LDPC, Covolution turbo, and block turbo code, You can choose which channel coding to run.
it run the encoder and add white noise in the channel, then it run the decoder, and compute the error rate.-This a software runing on the Matlab. it is used in the channel coding simulation. It i nclude DVB-S2 LDPC and turbo Covolution. and block turbo code, You can choose which channel coding to run. it ru n the encoder and add white noise in the channel. then it run the decoder. and compute the error rate.
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Size: 511884 |
Author: din_lee |
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Description: 关于simu1:
在simlink运行之前的初始化过程中，完成了信道时延和幅度的估计，多径合成权系数估计
多径合成采用可选EG/MR/MMSE合成
信道可选白噪声信道AWGN和IEEE80.215.3a UWB标准信道模型(CM1-CM4)但为了简化，
这里采用了IEEE80.215.3a给出了信道模型中的仿真数据包(如果你是作超宽带的，信道模型程序和数据可从IEEE80.215.3a网站获取)
和大部分仿真一样，模型中的Eb/No指的是单比特信息符号携带的能量和噪声的比例，监督的讲，在AWGN信道中，Eb/No为4.31db时,误码率0.01
关于zslsimu直接运行simuuwb.m可看到结果)
显然和simu1一样，只是增加了.m文件，修改.m文件中的重要参数:多径数、PN序列长度、PN序列、单个信息码元宽度Tb(单位ns)、每个脉冲宽度Tc(单位ns)、系统的仿真精度Ts(单位ns)、仿真时间
chanidx=1:1是因为考虑信道数据文件太大，不好上传，想得到精确的仿真，同一个信道类型(chantype)，最好仿真100次实现，信道文件可由UWB标准组织下载-on simu1 : simlink operation before the initialization process, completed the channel delay and the magnitude of the estimates, Multi-Path weights estimated Drive synthesis using the optional EG / MR / Synthesis MMSE Channel optional white noise channel AW GN and IEEE80.215.3a UWB channel model (CM1 - CM4) in order to simplify IEEE80.215.3a used here is a channel model for the simulation data packets (if you were for extra-wide belt, channel model and data from IEEE80.215.3a website access) and most simulation, Model of Eb / No refers to the single-bit symbols to carry the message of energy and noise ratio, supervision speaking, In AWGN channel, Eb / No for 4.31db, BER 0.01 zslsimu directly on the operation simuuwb.m can see the result) clearly and si mu1, only increased. m document change
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Size: 39956 |
Author: 海涛 |
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Description: 在matlab中产生N(0,1)分布的白噪声-produced in Matlab N (0,1) and the white noise! !
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Size: 1451 |
Author: 李杰 |
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Description: 通过设计VC程序对简单的一维信号在加上了高斯白噪声之后进行Daubechies小波、Morlet小波和Haar小波变换，从而得到小波分解系数；再通过改变分解得到的各层高频系数进行信号的小波重构达到消噪的目的。在这一程序实现的过程中能直观地理解信号小波分解重构的过程和在信号消噪中的重要作用，以及在对各层高频系数进行权重处理时系数的选取对信号消噪效果的影响。-through the design process to a simple one-dimensional signal with a Gaussian white noise after Daubech ies wavelet Morlet wavelet and Haar wavelet transform, and thus the wavelet coefficients; Decomposition again by changing the levels of high frequency coefficients of the wavelet reconstruction signal to eliminate noise purposes. In this program the process can intuitively understand wavelet decomposition process and the reconstruction of the Signal Noise Canceling the important role and the layers of high-frequency coefficients weight coefficient handling of the selection of signal denoising effects of.
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Size: 161420 |
Author: 牛牛 |
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Description: 数字信号处理的应用之一是从含有加性噪声的信号中去除噪声。现有被噪声污染的信号x[k]=s[k]+d[k],式中： 为原始信号d[k]为均匀分布的白噪声。
（1）分别产生50点的序列s[k]和白噪声序列d[k],将二者叠加生成x[k],并在同一张图上绘出x0[k],d[k]和x[k]的序列波形。
（2）均值滤波可以有效去除叠加在低频信号上的噪声。已知3点滑动平均数字滤波器的单位脉冲响应为h[k]=[1,1,1 k=0,1,2],计算y[k]=x[k]*h[k],在同一张图上绘出前50点y[k],s[k]和x[k]的波形，比较序列y[k]和s[k]。
-digital signal processing applications from one containing additive noise signal denoising. Existing noise pollution was a signal x [k] = s [k] d [k], where : of the original signal d [k] uniform distribution of white noise. (1) have 50 points each sequence s [k] and white noise sequence d [k] superposition of the two generation x [k] and the same is likely to draw a map x0 [k] d [k] and x [k] waveform sequence. (2) mean filter can effectively remove superimposed on the low-frequency noise on the signal. 3:00 known moving average digital filter unit for pulse response h [k] = [k = 0,1,2 1,1,1] Calculation y [k] = x [k] * h [k], the same is likely to draw a map before 50 y [k] s [k] and x [k] waveform sequence comparison y [k] s and [k].
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Size: 29280 |
Author: 魏臻 |
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Description: 实现了车辆惯性导航系统的卡尔曼滤波，包括定位结算，姿态校正，速度校正等，也包括惯性导航系统的模型建立，结算，白噪声，等等，对研究导航很有参考价值 -realized the vehicles inertial navigation system Kalman filtering, including clearing positioning, posture correction, the speed correction, including inertial navigation system model, clearing, white noise, etc., the study was useful navigation
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Size: 496000 |
Author: 马海波 |
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Description: 利用周期图法对序列的功率谱进行估计。数据窗采用汉明窗。假设在白噪声中分辨这三个不同频率的正弦信号,其相位是均匀分布在2PI的独立随机变量,而 是一个单位白噪声.生成50个长度为N=512的 的样本序列集合。
-use map cycle sequencing method of the power spectrum estimation. Data window using Hamming window. Assume that the white noise to differentiate between the three different frequency sinusoidal signal, its phase is uniformly distributed in the PI two independent random variables. but a flat white noise. Generating 50 length N = 512 samples of the sequence set.
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Size: 896 |
Author: lee |
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Description: 1、先生成一个“Blocks”信号
2、加上高斯白噪声
3、用 db3 小波进行分解，以说明信号和噪声在各个尺度上的表现。-1, the President as a "Blocks" signal 2, and 3 Gaussian white noise. db3 using wavelet decomposition, to illustrate the signal and noise in various scales performance.
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Size: 1114 |
Author: 黄海滨 |
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Description: 该文件夹为Alamouti空时码的仿真程序，天线配置为2发2收。
主要程序的用途说明：
mainMIMO_OFDMA_2Tx_SER.m: 主程序，设置各种参数
gendata.m: 生成原始信息数据的程序
mod_2Tx_STBC_DFUSC.m：调制程序
gen_SUI_CorrCIR.m: 生成信道冲击响应的程序
get_perfectCE_2x2.m: 生成理想信道估计值的程序
chanSUI_corr_2x2.m: 发送信号通过SUI信道的程序
addAWGN_2x2.m: 添加高斯白噪声的程序
dem_DFUSC_2x2_STBC.m: 接收端解调主程序
ls_freq.m: 频域LS算法
ls_time_2x2.m: 时域LS算法
ML_decision.m: Alamouti最大似然检测算法-folder for the ACS code of space-time simulation program, antenna configuration for the two 2 admission. The main purpose procedures : mainMIMO_OFDMA_2Tx_SER.m : The main program, gendata.m set various parameters : Data generated primitive procedures mod_2Tx_STBC_DFUSC.m : gen_SUI_CorrCIR.m modulation procedures : Generation channel impulse response procedures get_perfectCE_2x2.m : Generation ideal channel estimation procedures chanSUI_corr_2x2.m : SUI transmitted signal through the channel addAWGN_2x2.m procedures : adding Gaussian white noise process dem_DFUSC_2x2_STBC.m : receiver demodulator main program ls_freq.m : frequency-domain algorithm ls_time_2x2.m LS : time-domain algorithm ML_decision.m LS : ACS Maximum Likelihood Detection Algorithm
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Size: 16100 |
Author: leon |
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Description: 该文件夹为空时块码－卷积码级联系统的仿真程序，天线配置为2发2收。
主要程序的用途说明：
mainMIMO_OFDMA_2Tx_Convcode.m: 主程序，设置各种参数
gendatabits.m: 生成原始信息比特数据的程序
conv_encoder.m: 卷积码编码器
interleave.m: 交织器
mod_2Tx_STBC_DFUSC_Convcode.m：调制程序
gen_SUI_CorrCIR.m: 生成信道冲击响应的程序
get_perfectCE_2x2.m: 生成理想信道估计值的程序
chanSUI_corr_2x2.m: 发送信号通过SUI信道的程序
addAWGN_2x2.m: 添加高斯白噪声的程序
dem_DFUSC_2x2_STBC.m: 接收端解调主程序
ls_freq.m: 频域LS算法
ls_time_2x2.m: 时域LS算法
iterative_detection_decoding_2x2.m: 级联MAP算法主程序
map_decoding.m: 卷积码MAP译码程序
b2s_logp.m: 符号LLR转化为比特LLR-folder to the space-time block codes-Convolutional Codes cascade system simulation program, antenna configuration for the two 2 admission. The main purpose procedures : mainMIMO_OFDMA_2Tx_Convcode.m : The main program, gendatabits.m set various parameters : Generating original bits of information data conv_encoder.m procedures : Convolution Encoder interleave.m : interleaver mod_2Tx_STBC_DFUSC_Convcode.m : gen_SUI_CorrCIR.m modulation procedures : Generation channel impulse response procedures get_perfectCE_2x2.m : Generation ideal channel estimation procedures chanSUI_corr_2x2.m : SUI transmitted signal through the channel addAWGN_2x2.m procedures : adding Gaussian white noise process dem_DFUSC_2x2_STBC.m : receiver demodulator main program ls_freq.m : frequency-domain algorithm ls_time_2
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Size: 22936 |
Author: leon |
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Description: 这个程序用于图像的加密和隐藏，在加密过程中，将原来的图像加密成白噪声，使攻击者没有办法解密。此程序仅仅用于学术交流-procedures for the image of encryption and hidden in the encryption process, the original image encryption into white noise, allow an attacker not declassified. This procedure only for academic exchanges.
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Size: 1592 |
Author: 肖海 |
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