当前位置：
首页 资源下载
搜索资源 - signal power spectral density
搜索资源列表
-
1下载：
在计算机上产生一组实验数据，首先产生一段零均值白噪声数据u（n）,令功率为 ，让u(n)通过一个三阶FIR：
得到y(n). .y(n)上加三个实正弦信号f1’=0.1,f2’=0.25,f3’=0.26调整 和正弦信号幅度信噪比大致为10dB,50dB,50dB. (1) 令N=256,描绘xn波形；
(2)得出真实功率谱密度 .
(3) 利用此实验数据Pisarenko谐波分解法估计该实验数据的正弦频率及幅度。-On the computer to generate a
-
-
0下载：
方便准确的计算信号的互相关函数和互相关功率谱密度。-To facilitate accurate calculation of the signal cross-correlation function and cross-correlation power spectral density.
-
-
1下载：
用matlab仿真随机信号的调制解调，并绘制调制信号、已调信号、解调信号、输出信号的频谱、功率谱密度，自相关函数-Matlab simulation of random signals with modulation and demodulation, and draw the modulation signal, modulated signal, the demodulated signal, the output signal spectrum, power spectral densit
-
-
0下载：
设计切比雪夫1型滤波器，对输入信号进行滤波，并观察功率谱密度-Design of Chebyshev Type 1 filter, filtering the input signal and observe the power spectral density
-
-
0下载：
周期图法计算在白噪声环境下的正弦信号功率谱密度-Periodogram method under the white noise power spectral density of the sinusoidal signal
-
-
0下载：
这里是通信领域中各种基带信号（非常全，几乎最新的都有），用matlab编写，给出了相应的带宽和功率谱密度，很值得学习通信的-Here are the various communications baseband signal (very full, almost all the latest), written with matlab, the corresponding bandwidth and power spectral density, it is worth learning to
-
-
0下载：
了解随机信号自身的特性，包括均值（数学期望）、方差、相关函数、频谱及功率谱密度等。-Understanding of random signal their characteristics, including mean (mathematical expectation), variance, correlation function, spectrum and power spectral density.
-
-
0下载：
BPSK信号以及BPSK信号扩频后信号的仿真，通过低通滤波器以后，做出其功率谱密度图，查看其信号特性。-BPSK signal and the signal spread spectrum BPSK signal simulation, after low-pass filter through to make its power spectral density maps, see the signal characteristics.
-
-
1下载：
本程序是关于随机信号特征值提取，有界面显示，特征值包括自相关函数，和功率谱密度-This program is about random signal characteristic value is extracted, and to have the interface shows, including the autocorrelation function characteristic value, and power spectral density
-
-
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：
function Px=overlay(N,omega,A,sigma,num)
OVERLAY Forms multiple power spectral density estimates.
--- -
USAGE Px=overlay(N,omega,A,sigma,num)
Calculates the periodogram using an ensemble of realizations
of a process consisting
-
-
0下载：
针对锁频锁相器( Phase and Frequency Detector, PFD) 应用于低信噪比、大频偏的条件, 通过理论分析和仿真验证阐述了窗口类型对系统频偏捕获速度、范围、噪声门限及相位噪声抖动的影响机理. 推导出等效相位噪声功率谱密度的表达式. 证明了大窗口具有更低的噪声门限和更小的稳态相位抖动, 但捕获速度较慢. 为了提高捕获速度, 对鉴相器输出值取极性运算得到改进的PFD 算法. 新算法不仅能增加鉴相增益提高捕获速度 还可以减少等效噪声功率谱密度降低相位抖动 同时新算法不需要乘法
-
-
0下载：
用于计算待测信号的功率谱密度，方法是通过计算自相关函数的傅立叶变换。-Used to calculate the power spectral density of the test signal, the method by calculating the autocorrelation function of the Fourier transform.
-
-
1下载：
功率谱密度计算程序，可以用于计算时域信号的功率谱密度。-The power spectral density calculation procedures can be used to calculate the power spectral density of the time-domain signal.
-
-
3下载：
用Matlab产生一个频率为1Hz、功率为1的余弦信源，设载波频率为10Hz，并画出：
1.DSB调制信号及其功率谱密度；
2.将已调信号解调，在时域内将解调后的波形与原信号进行对比；
3.A=2的AM调制信号及其功率谱密度；
4.SSB调制信号及其功率谱密度；
5.在信道中各自加入经过带通滤波器后的窄带高斯白噪声，功率为0.1，解调各个信号，并画出解调后的波形。
-Matlab produce a frequency for 1 hz, power for 1 co
-
-
0下载：
本文介绍了OFDM技术及其功率谱的，并通过仿真研究了OFDM的功率谱密度特点。在同样条件下，增大子载波数目，会使信号带宽增加，带外衰减加快，功率谱密度图形更加接近于矩形。另外，添加循环前缀将使离散峰值谱线的值略微增大。-This article describes the OFDM technology and its power spectrum, and to study the characteristics of the power spectral density of the OFD
-
-
0下载：
这是考虑光信道色散，对输入信号的影响，结果仿真了功率谱密度-This is to consider chromatic dispersion of the optical channel, the input signal, the results of simulation of the power spectral density
-
-
0下载：
这是基于薛定谔方程，对信号进行的调制。结果考察了功率谱密度-This is based on the Schrodinger equation, the signal modulation. The power spectral density results ScS
-
-
0下载：
随机信号的统计特性测试,均值、方差，相关函数（包括自相关、互相关函数）、频谱及功率谱密度算法.-The statistical properties of random signal test, mean, variance, correlation function (including autocorrelation, cross-correlation function), spectrum and power spectral density algorithms.
-
-
0下载：
OQPSK信号的半正弦整形，调制解调，以及各步骤的信号功率谱密度。-Half-sine shaped OQPSK signal, modulation and demodulation, and the steps of the power spectral density of the signal.
-
