periodogram

An Adaptive Algorithm for Estimating Power Spectra Based on Modified Periodogram

基于周期图的自适应谱估计方法

A Frequency Offset Estimator Based on Periodogram and Correlation Function

基于周期图和自相关函数的频偏估计方法

The simulation results show that the results are much better than traditional periodogram method .

仿真结果表明用现代谱分析法得到的结果远远好于周期图法。

Then we get the power spectrum analysis of modulation signals through periodogram method .

接着采用周期图法对调制信号进行功率谱分析。

Application of Modified Periodogram Algorithm in Classifying and Identifying Communication Signals

修正平均周期图法在通信信号分选识别中的应用

Method In addition , the method of periodogram is introduced . In addition , M.

此外，还介绍了周期图方法进行功率信号的谱密度估值。

Joint Polarization and Arrival Angle Estimation of Chirp Signal Based Spatial Evolutionary Periodogram

基于空间演化谱的Chirp信号极化和DOA的联合估计

LFMCW radar nonlinear residual frequency errors zero crossing detection periodogram .

标签LFMCW雷达非线性剩余频差过零检测周期图。

Study of the Underwater Telecontrol Sound Detected by Spectral Estimation with Periodogram

周期图法对远程遥控水声信号的谱估计检测研究

The power spectrum of the noise and signal are estimated by the average smooth periodogram method .

用平均平滑周期图法分别估算出信号与噪声的功率谱密度函数。

The major periods in first four principal components series are also revealed by using the periodogram and the maximum entropy method .

在这四个主成分序列中的决定性周期用周期图和最大熵方法加以揭露。

In this paper , based on the theory of second order cyclostationary , two methods of cyclic periodogram are introduced and explained .

本文在介绍了二阶循环平稳理论的基础上，分析了循环周期图的两种方法，并将时间平滑循环周期图法应用到实测滚动轴承振动信号的分析与诊断之中。

Furthermore , we study the periodogram predictor and controller seriously , using experimental data to predict and control the shipping motion .

然后，用周期图预报及控制的方法对此问题进行了详细研究，并用实测数据进行预报计算。

The results show that modern spectrum analysis is more effective in most cases . However , sometimes it is inferior to the periodogram method .

从对大量的舰船噪声信号的分析来看，在大多数情况下现代谱分析技术具有优势，但并不是所有情况下其性能均优于周期图方法。

To modify periodogram by moving is a useful and effective method for either real time signal processing or non-stable signal processing .

移动的修正周期图谱估计方法在实时处理和非平稳信号处理的场合中是常用的一种有效方法。

The maximum entropy analysis and the periodogram analysis are made for the temporal variations of the A ( b ) indexes .

求出本世纪各年Ⅰ，Ⅱ，Ⅲ三带的地震活动性指数A（b），并对A（b）指数随时间的变化作了最大熵谱分析和周期图分析。

In this paper , Power spectrum of CAP ( carotid pulse ) by periodogram and AR model is given , respectively .

采用周期图法和AR参数模型法分别对颈动脉搏动波进行了功率谱分析。

Method Improved periodogram ( Welch procedure ), AR model and Wavelet transform techniques were used to detect the Spontaneous otoacoustic emissions signal .

方法采用改进的周期图法、AR模型及小波变换方法，研究自发耳声发射信号的检测算法。

In this paper , seismic period sequence of northeast china is dealt with by the periodogram , maximun entropy analysis and Fisher .

利用周期图，最大熵谱分析及最优分割方法，对东北地区地震活动的时间序列进行了分析处理。

Conclusion Clinical application of the Spontaneous Otoacoustic Emissions might be enhanced by the method of improved periodogram ( Welch procedure ) and Wavelet transform .

结论改进的周期图法和小波变换方法对推动自发耳声发射在临床生理和病理上的应用有巨大的潜力。

A simple algorithm for frequency offset estimation is proposed , which estimates the frequency offset with the periodogram and the correlation function of the observation samples .

提出了一种频差估计的新算法，该算法结合观测序列的周期图和自相关函数进行频率估值。

Invariance Principle for the Functional of Periodogram of a Stationary Time Series ; Depositon is usually episodic rather than smoothly continuous .

平稳序列周期图积分泛函的不变原理沉积作用通常是周期性的而不是平稳连续的。

Comparison of these two methods show that periodogram method is superior to the AR model , in point of the stability of peak and distributing of the power spectrum .

分析结果表明，从脉搏波功率谱的主峰及谱分布稳定性的角度来说，周期图法比AR参数模型法具有更优越的性能。

A new spatial polarimetric t-f ( SPTF ) distribution was presented based evolutionary periodogram of chirp signals of time-varying amplitude .

同时，基于时变幅度Chirp信号的空间演化谱，提出了一种新的空间极化时频分布，用此空间极化时频矩阵代替自相关矩阵估计信号子空间和噪声子空间。

This algorithm applies periodogram and parabolic interpolation to the cross correlation spectrum of band limited stochastic signals , and can obtain a continuous time delay estimator .

该方法将周期图法与抛物线插值应用于带限随机信号的互相关谱，可以获得连续的延时估计。

In chapter four , selects periodogram realizes the power spectrum analysis , take advantage of Radix-4 algorithm to calculate FFT , and describes the realization in MCU .

第四章选择周期图法实现功率谱分析，采用优化了的基4算法实现快速傅里叶变换，并阐述了在单片机上的实现。

In this paper , an improved periodogram analysis proposed by Welch is used to estimate power spectrum of ship 's magnetic signals , and some normalized characteristic curves are given .

本文采用修正的周期图法（Welch法）对舰船磁场信号进行了功率谱估计并给出归一化曲线。

In this paper the midium and short periodic fluctuations of meteorological components related to crop yield in China are discussed by means of spectrum analysis , periodogram and variance analysis .

本文应用功率谱、周期图和方差分析等方法探讨了全国及部分代表省（区）粮食单产中气象分量的中短周期波动。

Multi-taper method is a kind of nonparametric spectrum estimation , in which multiple orthonormal windows are first applied to the received data and then periodogram method is used to estimate the spectrum .

多窗口谱估计是利用一组正交窗加到接收到的数据上，再进行周期图估计的一种非参数谱估计技术。

In this paper , we analyzed evolutionary spectrum of chirp signals of time-varying amplitude , and proposed the method of concentrating energy in time-frequency domain to improve the concentration of evolutionary periodogram .

本文研究了时变幅度Chirp信号的演化谱，提出了分别在时间轴和频率轴上聚集能量的方法，改善了演化周期谱的能量聚集性。