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DSSS.rar
- 一个四用户的扩频通信系统,扩频增益为N=16,采用Walsh码进行直接序列扩频,BPSK调制,无线信道为AWGN(加性高斯白噪声信道)信道(AWGN信道:不考虑通信信道信号时,由宽频范围描述的统计随机无线噪声。)。在接收端进行解扩,解调,判决,通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。,A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct
ldpc2
- ldpc编码,在加性高斯白噪声情况下描述出它的误码率随信噪比变化的情况-ldpc coding, in the additive white Gaussian noise cases, describe its bit error rate with signal to noise ratio the changes in the
C_RLS
- 研究利用RLS算法自适应均衡器纠正存在加性白噪声的信道的畸变。讨论特征值扩散度 对学习曲线的影响。 比较RLS算法和LMS算法在不同信噪比情况下的学习曲线。 -RLS algorithm using adaptive equalizer to correct the existence of additive white noise distortion channel. Eigenvalue discussion diffusivity impact on the learning cur
imageshow
- 用于图像处理的图形用户界面,可实现图像的翻转、加噪、边缘提取等功能。-For image processing graphical user interface, can be flipped images, noise, edge detection and other functions.
MQAM-modulation-demodulation
- 产生一段随机四进制信号,对其进行QAM调制后,送入加性高斯白噪声信道传输,用加法运算在已调信号叠加白噪声,模拟加性高斯白噪声信道对信号传输的影响,在接收端对信号进行相应解调,并与原始信号比较计算误码率。改变误差白噪声的功率,绘制信噪比与误码率曲线。并与同组其他同学的性能曲线比较各种调制方式的性能优劣。-For some randomly generated four-band signal, after its QAM modulation, into the additive white Ga
ds_programme
- 直接序列扩频通信系统仿真程序,包括伪随机序列产生、扩频、加噪、接收等。-Direct sequence spread spectrum communication system simulation program, including the pseudo-random sequence generator, spread spectrum, plus noise, the receiver and so on.
zishiyingxindaojunhengqi
- 使用下面的参数设计信道均衡器,其中使用两个独立的随机数发生器,一个用x(n)来表示,用来测试信道;另一个用v(n)来表示,用来模拟接收器中的加性白噪声的影响。序列x(n)是x(n)=±1的伯努利序列,随机变量x(n)具有零均值和单位方差。第二个序列v(n)具有零均值,其方差由信噪比决定。均衡器有11个抽头。-Use the following parameter design of channel equalizer, which uses two separate random number
MATLAB-and-communication-simulation
- 1、研究BFSK在加性高斯白噪声信道下(无突发干扰)的误码率性能与信噪比之间的关系; 2、研究BFSK在加性高斯白噪声信道下(有突发干扰)的误码率性能与信噪比之间的关系;分析突发干扰的持续时间对误码率性能的影响。 3、研究BFSK+信道编码(取BCH码和汉明码)在加性高斯白噪声信道下(无突发干扰)的误码率性能与信噪比之间的关系;分析不同码率对误码率性能的影响。比较不同信道编码方式的编码增益性能。 4、研究BFSK+信道编码(取BCH码和汉明码)在加性高斯白噪声信道下(有突发干扰)的误
Msimulatee1A
- 用MATLAB实现加噪信号的消噪噪,用了三种常用方法。可直接使用。 -Using MATLAB to increase noise and signal noise cancellation noise, with three commonly used methods. Can be used directly.
juanjima
- 卷积码仿真与分析 在理解卷积码编译码原理的基础上使用Matlab语言进行编程,首先产 生一段随机序列,即原始的发送比特流,然后对该信号进行卷积编码、BPSK 映射、加噪、解映射及译码,得到恢复的数据。 -The simulation and analysis of the convolutional code to understand convolutional code encoding and decoding principle the basis of the Matlab
yuyin
- 用matlab采集语音,信号加噪去噪,以及fft变换-With Matlab acquisition Voice, the signal plus noise denoising, and fft transform
Acquisition-of-the-speech-signal
- matlab语音信号的采集,以及经过加噪后的滤波器过滤及相关的matlab程序-Matlab voice signal acquisition, and after adding noise after filtering and matlab program
FORTRANXZB
- matlab生成地震信号处理的雷克子波,常用来加噪之后检测算法.-generating seismic signal processing matlab Ricker wavelet, used to increase noise after detection algorithm.
awgnlogsum
- 在matlab中用c语言实现加噪,利用混合编程。-In matlab program, using c language adding noise
matlab-pinyulvbo
- 利用matlab设计频域滤波器,分别对灰度图像与彩色图像进行加噪去噪-Frequency domain filter design using matlab, respectively, of grayscale images and color images with noise denoising
M2M4-SNR-estimination
- 经典的二阶矩四阶矩信噪比估计,有不经过上采样、成型滤波和经过上采样、成型滤波的两种版本。加噪方式也分别用了matlab自带函数和自写两种版本。望大家参考。-Second Moment classic SNR estimation fourth moment, there is not through the sampling, the shaping filter and sampled, two versions of shaping filter. Plus noise mode were
Epsk
- 完整8psk调制,成型滤波,加噪匹配滤波,解调映射(Complete 8PSK modulation, shaping filter, add noise, matched filter, demodulation mapping)
matlab程序
- 给图像加入不同的噪声噪声 psnr计算程序(Add a different noise noise to the image. psnr calculation program)
jiazaolvbo
- 在MATLAB平台上,录入一个语音信号,对其加噪,然后滤波(In the MATLAB platform, input a speech signal, add noise to it, and then filter)
对语音进行加噪、去噪、变速等处理
- 基于matlab对语音信号进行加入随机噪声、去噪滤波、变声变速等处理,并显示出相关波形和频谱图。(Based on matlab, the speech signal is processed by adding random noise, denoising and filtering, changing sound and speed, and the relevant waveforms and spectrum diagrams are displayed.)