搜索资源列表
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matlab 的白噪声, -Matlab white noise, the white noise Matlab and Matlab white noise, the white noise Matlab,
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现有数字信号自动调制识别方法大多只适用于无记忆信号,如PSK、ASK、FSK信号等。将有记忆
信号(MSK信号)和无记忆信号一起考虑,提出了一种改进的数字信号自动识别方法。该方法采用信号的瞬时统
计量作为特征参数,采用多层神经网络作为分类器。计算机仿真表明:当噪声采用高斯白噪声,并且信噪比大于
l5 dB时,识别率高于96% ;当信噪比不低于l0 dB时,识别率不低于90%。,Existing digital signal automatic modulation recognition
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fft1.用Matlab产生正弦波,矩形波,以及白噪声信号,并显示各自时域波形图
2.进行FFT变换,显示各自频谱图,其中采样率,频率、数据长度自选
3.做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱
4.用IFFT傅立叶反变换恢复信号,并显示恢复的正弦信号时域波形图-fft1. Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and displa
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DS-spread spectrum系统中,噪声为加性高斯白噪声,传统单用户检测,线性解相关多用户检测和最小均方误差多用户检测的性能比较-DS-spread spectrum system, the noise is additive white Gaussian noise, the traditional single-user detection, the linear decorrelating multiuser detection and MMSE Multiuser Detecti
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注意:刚上传的不完整,以这个为准 (在DS-spread spectrum系统中,噪声为加性高斯白噪声,传统单用户检测,线性解相关多用户检测和最小均方误差多用户检测的性能比较)-In DS-spread spectrum system, the noise is additive white Gaussian noise, the traditional single-user detection, the linear decorrelating multiuser detection and
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书文提出了一种称为平均反馈(AF)的新算法.该算法利用两个相邻的
0FDM符号之间的荧联信息对LS算法的估计结果进行平均和反馈.以减少离斯白噪声岛子信道间干扰(1cI)对信道估计结
果的影囔。-The book article proposed one kind is called the average to feed back (AF) the new algorithm. This algorithm uses two neighboring between the 0FDM ma
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matlab系统辨识,m序列的产生,逆m序列的产生,白噪声的产生-matlab system identification, m sequence generation, reverse m sequence generation, white noise generation
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White noise is a random signal (or process) with a flat power spectral density. In other words, the signal contains equal power within a fixed bandwidth at any center frequency. White noise draws its name from white light in which the power spectral
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This code for simulating MCCDMA over aditive white gausian noise
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设某信号 , N=20, 其中, 为白噪声。
求: 编程实现信号的DFT及其反DFT变换,画出原始信号、幅频特性和反变换后信号的曲线。
-Let a signal, N = 20, which, for the white noise. Demand: programming signal DFT and its inverse DFT transform, draw the original signal, the amplitude-frequency characteristic
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Denoising
Reduces the total-variation of the image. Filters out noise while preserving edges. Textures and fine-scale details are also removed. In this demo the assumption is that a white Gaussian noise is added with priori known (or estimated) noi
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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!
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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
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Matlab Simulation for Comparison of Different QAM
Constellations and Mapping for a Channel with
Additive White Gausian Noise
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MATLAB软件平台下,利用函数wavread对语音信号进行采样,记住采样频率和采样点数;
2)画出语音信号的时域波形,对采样后的语音进行fft变换,得到信号的频谱特性;对语音信号分别加入正弦噪声和白噪声,画出加噪信号的时域波形和频谱图;
3)根据对加噪语音信号谱分析结果,确定滤除噪声滤波器的技术指标,设计合适的数字滤波器,并画出滤波器的频域响应;
4)用所设计的滤波器对加噪的信号进行滤波,在同一个窗口画出滤波前后信号的时域图和频谱图,对滤波前后的信号进行对比,分析信号变化;
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利用matlab针对图像进行马氏距离计算 ,高斯白噪声的生成程序,已经调试成功.内含m文件,可直接运行。- Using matlab to calculate the Mahalanobis distance for the image, Gaussian white noise generator, Has been successful debugging. M contains files can be directly run.
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高斯白噪声的生成程序,计算多重分形非趋势波动分析matlab程序,一些自适应信号处理的算法。- Gaussian white noise generator, Calculation multifractal detrended fluctuation analysis matlab program, Some adaptive signal processing algorithms.
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关于小波的matlab复合分析,含噪脉冲信号进行相关检测,高斯白噪声的生成程序。- Matlab wavelet analysis on complex, Noisy pulse correlation detection signal, Gaussian white noise generator.
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最小二乘回归分析算法,这是第二能量熵的matlab代码,高斯白噪声的生成程序。- Least-squares regression analysis algorithm, This is the second energy entropy matlab code, Gaussian white noise generator.
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产生一个高斯白噪声
利用MATLAB自带的fir1函数产生一个低通滤波器,限制高斯白噪声的带宽,由此产生了视频噪声。
利用产生的视频噪声,分别代入噪声调幅干扰的时域表达式,并且进行100次的积累后求平均值,对其进行快速傅里叶变换后,由此画出噪声调幅干扰的频域波形。
重复上述步骤,分别代入噪声调频干扰与噪声调相干扰的时域表达式,分别画出其频域波形与时域波形。(Generate a Gauss white noise
The fir1 function of MATLAB is used to ge
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