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Matlab wave 用Matlab产生正弦波
- 用Matlab产生正弦波、均匀白噪声、高斯白噪声,并将两种噪声叠加到正弦波上。并给出自相关和功率谱密度波形-Generate sine wave using Matlab, uniform white noise, Gaussian white noise, and two kinds of noise superimposed on the sine wave. And from related to the waveform and power spectral density
用matlab中的FFT函数实现了正弦信号
- 用matlab中的FFT函数实现了正弦信号,矩形信号,和白噪声的频谱分析,FFT with matlab function in a sinusoidal signal, the rectangular signal, and white noise spectrum analysis
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
work.rar
- 上载的内容为随机信号处理的作业,具体是:其中W(t)为均值为零,方差为3的白噪声。 (1)产生若干组500个点长随机序列。 (2)找一个ARMA模型与(1)中的500个点匹配。 (3)在产生一个500个点长的随机序列校正。 ,Upload the contents of random signal processing operations, specifically: one of W (t) for the mean zero, variance of white noise for
FSK.rar
- FSK实现,对数据的调制和解调,加入高斯白噪声,最后产生眼图。,FSK implementation, the data modulation and demodulation, add Gaussian white noise, and finally generate the eye diagram.
qpsk.rar
- 加性高斯白噪声信道条件下的QPSK信号的调制与解调,观察了调制信号的功率谱图,输入输出信号图,已经时间误码率图与理论误码率的比较,Additive white Gaussian noise channel under the conditions of the QPSK signal modulation and demodulation, observed power spectra of modulated signals, input and output signal maps, pla
BM3D.rar
- 图像去噪,是目前图像处理领域对高斯白噪声效果最好的去噪算法,image denoising
sasdw.rar
- 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
frequency_hopped.rar
- 一个用matlab写的跳频通信系统仿真,信道采用的是高斯白噪声信道,a frequency-hopped communication system, simulated by matlab
esprit.rar
- 用esprit算法估计复正弦加白噪声的信号频率,f给出正弦信号的频率估计值,Esprit algorithm with an estimated increase in complex white noise sinusoidal signal frequency, f the frequency of sinusoidal signal given the estimated value of
DSP2
- DSB-SC信号的生成与解调 1) 用离散(DSP)的方法生成DSB信号 2) 载波频率为150KHz,音频为500Hz和2000Hz的混合音。 3) 加入高斯白噪声 (4) 语音信号 的传输。 改变抽样频率和量化台阶大小,观察重建信号以及量化噪声信号的波形;对于语音信号主观评价声音质量的变化。 -DSB-SC signal generation and demodulation 1) Discrete (DSP) methods to generate
DSSS
- 设计一个有干扰的直接序列扩频通信系统, PN码由m序列产生器产生,经过高斯白噪声信道。在接收端接收到的信号包括“有用信号+高斯白噪声+干扰”,将接收信号进行解扩,判决,得到用户的信号检测结果,绘制不同的扩频增益(增益值为10,30,50)下,误比特率随信噪比Eb/N0的变化曲线。-Design of a direct sequence spread spectrum interference system, PN code generated by the m sequence generato
bys
- 采用贝叶斯正则化算法提高BP网络的推广能力。在本例中,将采用两种训练方法,即L-M优化算法(trainlm)和贝叶斯正则化算法(trainbr),用以训练BP网络,使其能够拟合某一附加有白噪声的正弦样本数据。-The use of Bayesian regularization algorithm for BP network to improve generalization ability. In this case, two types of training methods will b
Matlab-FinishedOne
- 针对夹杂有白噪声的正弦信号的功率谱估计仿真-Mixed with white noise for sinusoidal signal simulation of the power spectrum estimation
MATLAB
- 高斯白噪声无线通信信道下的误码率仿真,希望对你的学习有用-Gaussian white noise of wireless communication channel under BER simulation, you would like to learn useful
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
Gauss_noise_generation
- 能够产生高斯白噪声,有色噪声和一般噪声。用于matlab仿真实验。-Generated Gaussian white noise, colored noise and general noise.
levinsonf
- 信号为两个正弦信号加高斯白噪声,用levinson递推法进行功率谱估计。-Signal for two sinusoidal signal plus Gaussian white noise, with levinson recursive power spectrum estimation method.
16qam_channel_encode
- 一、 本程序采用16QAM调制方式,对一串2进制信源进行调制,采用(7,4)循环码对信源做信道编码,用升余弦滚降函数进行基带调制,再调到高频信道;在信道上加入高斯白噪声,运用匹配滤波器解调,画出解调星座图,运用最小欧氏距离译码判决,再对信号进行信道解码,画出采用信道编码技术和不采用信道编码技术的误比特率图。-First, this program uses 16QAM modulation mode, for a string of two binary source is modulated,
eg-fft
- 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