搜索资源列表
-
0下载:
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 differentiat
-
-
2下载:
平均周期图法和平滑平均周期图法估计功率谱
从经典功率谱估计周期图法原理入手,从理论上分析了其存在的局限性,借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力进行实验!!
用周期图法和welch法分别估计了一下信号的功率谱密度。采样频率200Hz,时间序列长度2048,FFT数据点数2048。其中welch法使用hanning窗,窗口长度600.-Average periodogram and periodogram smoothing method to est
-
-
5下载:
MPSK信号基于高阶循环谱估计载波频率matlab的代码-MPSK signals based on higher-order cycle of the carrier frequency spectrum estimation matlab code
-
-
0下载:
详细说明:1. 利用自相关函数法和周期图法实现随机信号的功率谱估计。 2. 观察数据长度、自相关序列长度、信噪比、窗函数、平均次数等对谱估计的分辨率、稳定性、主瓣宽度和旁瓣效应的影响。 --1. The use of auto-correlation function method and cycle map Method random signal power spectrum estimation. 2. Observation data length, the length of auto
-
-
0下载:
很好的空间music谱估计的例子 空间傅里叶变换-A good example of space music spectrum estimation Fourier transform space
-
-
0下载:
各种随机分布的直方图,频谱估计图,频谱归一图-Various random distribution histogram, spectrum estimation map, the normalized frequency spectrum chart
-
-
1下载:
研究了自适应参数谱估计的基本原理,提出了基于最小均方误差(MMSE)准则的LMS格型滤波算法实
现自适应参数谱估计的方法。通过对仿真测试信号和线性调频信号的计算表明,该方法能够在改善谱分辨率的
同时提高运算效率,满足遥测速变信号的处理和分析计算的要求-This paper discusses the principle of adaptive parametric spectrum estimation.It provides an approach to es—
timate po
-
-
0下载:
谱估计中的伯格算法,利用matlab仿真,对信号频率做出估计-The Burg spectrum estimation algorithm using matlab simulation, to estimate the frequency of the signal
-
-
0下载:
谱估计法分析随机信号,并对其进行傅里叶变换-Spectral analysis is a tool for signal analysis. Power spectrum estimation is based on limited data looking for signals, the frequency of random process or system components. It said random signal frequency-domain statistical ch
-
-
0下载:
信号时正弦波加正态零均值白噪声,信噪比10db,信号频率2kHZ,采样频率100kHZ,数据长度N=256。
(1). 用周期图法进行谱估计。-Sine wave signal plus zero-mean normal white noise, SNR 10db, frequency 2kHZ, sampling frequency 100kHZ, data length N = 256.
(1) with the periodogram spectral estimation.
-
-
0下载:
MATLAB仿真实现AR模型,Yule-Walker 功率谱估计及AR模型频率响应-MATLAB simulation of the AR model, the Yule-Walker power spectrum estimation and the AR model frequency response
-
-
0下载:
信号处理,分段平滑法功率谱估计,频率平滑法功率谱估计-Signal processing, segment power spectrum estimation of the smoothing method, frequency smoothing method power spectrum estimation
-
-
0下载:
负正弦加白噪声随机过程下使用MUSIC方法进行信号频率估计仿真,信号样本数去1000,估计的自相关矩阵为8阶,分别采用AIC和MDL准则估计信号源个数,并画出相应的MUSIC频率估计谱线。-Negative sine plus white noise random process method using MUSIC frequency estimation simulation, signal samples to 1000, the estimated autocorrelation mat
-
-
1下载:
跳扩频信号的时频分析,对研究信号检测与参数估计的非常有帮助,时频图清晰明了,很好的程序-When frequency hopping spread spectrum signal analysis, the study of signal detection and parameter estimation is very helpful, time-frequency diagram clarity, good program
-
-
1下载:
噪声谱估计+谱减法,主要用于对比不同噪声谱估计算法的性能,包括Martin s minimum tracking algorithm,Minimum controlled recursive average algorithm (Cohen) ,variant of Minimum controlled recursive average algorithm ,improved Minimum controlled recursive average algorithm (Cohen),cont
-
-
1下载:
BPSK载频估计,用它的平方谱和四次方谱进行估计,能够在0dB情况下完成有效估计-BPSK carrier frequency estimation, with its squared spectrum and quartic spectrum estimation can be completed in the 0dB case valid estimation
-
-
0下载:
功率谱估计
信号为两个正弦信号加高斯白噪声,各正弦信号的信噪比均为10dB,长度为N,信号频率分别为 和 ,初始相位 ,取 , 取不同数值:0.3,0.25。 为采样频率。分别用Levinson递推法和Burg法进行功率谱估计,并分析改变数据长度、模型阶数对谱估计结果的影响。-Power spectrum estimation signal into two sinusoidal signals applied Gaussian white noise, the SNR of each si
-
-
0下载:
功率谱估计的目的是根据有限的数据给出信号、随机过程的频率成分分布。程序给出了功率谱估计的方法,并详细描述-The purpose of the power spectrum estimate is based on limited data given signal, the frequency component distribution of random process. Program gives the power spectrum estimation methods, and de
-
-
1下载:
信号为两个正弦信号加高斯白噪声,各正弦信号的信噪比均为10dB,长度为N,信号频率分别为 和 ,初始相位 ,取 , 取不同数值:0.3,0.25。 为采样频率。分别用Levinson递推法和Burg法进行功率谱估计,并分析改变数据长度、模型阶数对谱估计结果的影响。-Signal into two sinusoidal signals applied Gaussian white noise, the SNR of each sinusoidal signals are 10dB, a lengt
-
-
4下载:
实测一组机械系统的振动信号,记录采样频率、采样点数,估计该组振动信号的均值、均方值、方差、自相关函数和功率谱,其中功率谱估计对比频率平滑与分段平滑的效率,针对分段平滑、分析不同平滑次数对功率谱估计的影响-Found a mechanical vibration signal system, the recording sampling frequency, sampling points, the estimated mean the set of vibration signals mean
-