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CC-PHAT-ML
- 高斯白噪声,信噪比变化情况下的CC,PHAT,ML的时延估计算法-Gaussian white noise, SNR changes, CC, PHAT, ML delay estimation algorithm
CDMA-ber-simulation
- 高斯白噪声信道CDMA性能仿真,绘制BER与码长、信噪比、用户数的关系曲线。-Gaussian white noise channel CDMA performance simulation, relations of BER and length of chips, signal-noise ratio, and the number of users.
xiaobobaoyuzhijiangzao
- :提出一种基于对偶树复小波块阈值的信号降噪方法,并将其成功应用于机械故障诊断中。机械设备的振动信号都或多或少地含有噪声,导致弱故障信息的提取一直是故障诊断的难点和热点。提出的降噪方法充分利用对偶树复小波变换的平移不变性和块阈值法的更优估计特性,可以获得比常规的小波降噪方法以及基于常规离散正交小波变换的 NeighBlock 降噪法更高的信噪比, 不仅能有效抑制高斯白噪声, 还能够去除冲击信号中的脉冲噪声。-:A denoising method of block thresholding bas
YUYIN
- 用matlab记录一段基带语音信号,采样频率设为44.1kHz。产生一个高斯白噪声 随机过程,并将噪声叠加在语音信号上(相当于将语音信号通过一个高斯信道)。 (1) 设定不同的噪声信噪比,画出并比较高斯信道接收端的信号时域波形,播 放接收信号。 (2) 由于语音信号的范围通常在3kHz以内,在接收端加载一个低通滤波器, 截止频率为3kHz,画出并比较滤波前后的信号时域波形,并播放滤波后 的信号。-Matlab record with some baseband voice
BPSKaQPSK
- BPSK与QPSK调制解调系统的Matlab仿真程序; 发送滤波器与接收滤波器均为根升余弦滚降滤波器; 信道噪声为加性高斯白噪声; 绘制BPSK与QPSK调制下的误码率与信噪比曲线图,并与理论曲线进行对比。 -BPSK and QPSK modulation and demodulation systems Matlab simulation program transmit and receive filters are root raised cosine filter
levinson
- 图1为均衡带限信号所引起失真的横向或格型自适应均衡器(其中横向FIR系统长M=11), 系统输入是取值为±1的随机序列,其均值为零;参考信号;信道具有脉冲响应: 式中用来控制信道的幅度失真(W = 2~4, 如取W = 2.9,3.1,3.3,3.5等),且信道受到均值为零、方差(相当于信噪比为30dB)的高斯白噪声的干扰。试比较基于下列几种算法的自适应均衡器在不同信道失真、不同噪声干扰下的收敛情况(对应于每一种情况,在同一坐标下画出其学习曲线): 1)横向/格-梯型结构LMS算法
MUSIC1
- 模拟2个独立窄带信号分别以20°,60°的方向入射到均匀线阵上,信号间互不相关,与噪声相互独立,噪声为理想高斯白噪声,阵元间距为入射信号波长的1/2,信噪比为20dB,阵元数为10,采样快拍次数为200。-Simulate two independent narrowband signals in the direction of 20 °, 60 ° of the incident on the ULA, among signal unrelated, independent noise, t
music2
- 模拟2个独立窄带信号分别以20°,60°的方向入射到均匀线阵上,信号间互不相关,与噪声相互独立,噪声为理想高斯白噪声,阵元间距为入射信号波长的1/2,快拍数为200,信噪比为20dB,阵元数分别为10,50,100。 -Simulate two independent narrowband signals in the direction of 20 °, 60 ° of the incident on the ULA, among signal unrelated, independent
music3
- 模拟2个独立窄带信号分别以20°,60°的方向入射到均匀线阵上,信号间互不相关,与噪声相互独立,噪声为理想高斯白噪声,阵元数为10,快拍数为200,信噪比为20dB,阵元间距分别为 tambada/6 tambada/2、tambada。-Simulate two independent narrowband signals in the direction of 20 °, 60 ° of the incident on the ULA, among signal unrelat
music4
- 模拟2个独立窄带信号分别以20°,60°的方向入射到均匀线阵上信号间互不相关,与噪声相互独立,噪声为理想高斯白噪声,阵元数为10,阵元间距为入射信号波长的1/2,信噪比为20dB,快拍数分别为5,50,200。-Simulate two independent narrowband signals in the direction of 20 °, 60 ° of the incident on the ULA between signal uncorrelated with independe
music5
- MUSIC算法DOA估计与信噪比的关系模拟2个独立窄带信号分别以20°,60°的方向入射到均匀线阵上,信号间互不相关,与噪声相互独立,噪声为理想高斯白噪声,阵元数为10,阵元间距为入射信号波长的1/2,快拍数为200,信噪比分别为-20dB,0dB,20dB。-MUSIC DOA estimation algorithm relationship with SNR
music6
- 模拟2个独立窄带信号入射到均匀线阵上,信号间互不相关,与噪声相互独立,噪声为理想高斯白噪声,阵列的阵元数为10,快拍数为200。阵元间距为入射信号波长的1/2,信噪比为20dB,信号入射角度差分别为5°,10°,20°。-Simulate two independent narrowband signals incident on the ULA, among signal unrelated, independent noise, the noise is ideal Gaussian whi
music8
- MUSIC算法DO模拟2个独立窄带信号入射到均匀线阵上,信号间互不相关,与噪声相互独立,噪声为理想高斯白噪声,阵列的阵元数为10,快拍数为200。阵元间距为入射信号波长的1/2,信噪比为20dB,信号入射角度差分别为5°,10°,20°。-DO MUSIC algorithm simulate two independent narrowband signals incident on the ULA, among signal unrelated, independent noise, the
FFT
- 信号y=sin(2*pi*f1*t)+sin(2*pi*f2*t)加上信噪比为2高斯白噪声的傅里叶变换,分别画出时域和频域图-Signal y = sin (2* pi* f1* t)+ sin (2* pi* f2* t) plus noise ratio for two Gaussian white noise of the Fourier transform, respectively, to draw the time domain and frequency domain
bqpsk
- BPSK 与QPSK 调制解调系统的Matlab 仿真程序,发送滤波器与接收滤波器均为根升余弦滚降滤波器;信道噪声为加性高斯白噪声 绘制BPSK 与QPSK 调制下的误码率与信噪比曲线图,并与理论曲线进行对比-BPSK and QPSK modulation and demodulation system Matlab simulation program, send and receive filters are root raised cosine filter roll-off fil
ziliao
- 通信系统中数字调制信号分析 包括时域、频域、误码率、信噪比、谱分析、加性高斯白噪声,实现一个完整的系统分析的MATLAB程序-Communication systems digital modulation signal analysis including time domain, frequency domain, bit error rate, SNR, spectrum analysis, additive white Gaussian noise, to achieve a compl
Pe_SNR_BFSK
- 二进制频移键控信号时域波形,频域功率谱密度,以及加入加性高斯白噪声后输出的信噪比与误码率的关系。-Binary FSK signal time-domain waveform, frequency domain power spectral density, and the relationship between AWGN to a dispersion after the output signal to noise ratio and bit error rate.
Pe_SNR_QPSK
- 二进制相移键控信号时域波形,频域功率谱密度,以及加入加性高斯白噪声后输出的信噪比与误码率的关系。-Binary Phase Shift Keying signal time-domain waveform, frequency domain power spectral density, and the relationship between AWGN to a dispersion after the output signal to noise ratio and bit error ra
BPSK-QPSK
- 分别编写BPSK与QPSK调制解调系统的Matlab仿真程序,要求:发送滤波器与接收滤波器均为根升余弦滚降滤波器;信道噪声为加性高斯白噪声 绘制BPSK与QPSK调制下的误码率与信噪比曲线图,并与理论曲线比较对比-They were written BPSK and QPSK modulation and demodulation system Matlab simulation program requirements: a transmission filter and a recept
amlitude-of-AWGN
- 探究高斯白噪声信号的幅度与信噪比的关系,采用matab实现并绘图。-Explore the relationship between Gaussian white noise signal amplitude and signal to noise ratio, using matab achieve and drawing.