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时差估计
相关语句
  time delay estimation
    The Time Delay Estimation of Wide-band Signal Using Cross-Ambiguity Function
    基于互模糊函数的宽带信号时差估计
短句来源
    Applying Phase Correlation to Time Delay Estimation Research
    广义相位相关用于时差估计技术研究
短句来源
    The method, based on cross-ambiguity function, is more suitable for time delay estimation in low SNR.
    这种基于互模糊函数的算法与传统的直接互相关法相比,更适用于低信噪比情况下的时差估计
短句来源
    Time delay estimation of radar signal is an important task in radar signal processing. This paper first introduces typical time delay estimation methods. Then based on our research,an improved algorithm for time delay estimation of radar signal is proposed,It applying phase correlation to broad sense correlation delay estimation algorithm.
    对雷达信号的时延估计技术进行研究是雷达信号处理的一项重要任务,本文首先介绍了典型的时差估计方法,然后结合我们的研究针对雷达信号的时差估计作出了一种改进的算法,它将相位相关技术应用到广义相关时差估计算法中,通过仿真验证了该算法的有效性,并得到了一些有益的结论。
短句来源
  time-delay estimation
    Time-delay estimation for sub-sampling sinusoidal signals
    欠采样条件下的正弦信号时差估计
短句来源
    To resolve the problem of time-delay estimation for sub-sampling sinusoidal signals,a new method composed of multi-period sampling and multi-layer correlation is proposed.
    针对正弦信号时差估计的多解模糊问题,提出采用多周期取点欠采样和多重相关方法来解决。
短句来源
  delay estimation
    The Time Delay Estimation of Wide-band Signal Using Cross-Ambiguity Function
    基于互模糊函数的宽带信号时差估计
短句来源
    Applying Phase Correlation to Time Delay Estimation Research
    广义相位相关用于时差估计技术研究
短句来源
    The method, based on cross-ambiguity function, is more suitable for time delay estimation in low SNR.
    这种基于互模糊函数的算法与传统的直接互相关法相比,更适用于低信噪比情况下的时差估计
短句来源
    Time delay estimation of radar signal is an important task in radar signal processing. This paper first introduces typical time delay estimation methods. Then based on our research,an improved algorithm for time delay estimation of radar signal is proposed,It applying phase correlation to broad sense correlation delay estimation algorithm.
    对雷达信号的时延估计技术进行研究是雷达信号处理的一项重要任务,本文首先介绍了典型的时差估计方法,然后结合我们的研究针对雷达信号的时差估计作出了一种改进的算法,它将相位相关技术应用到广义相关时差估计算法中,通过仿真验证了该算法的有效性,并得到了一些有益的结论。
短句来源
  “时差估计”译为未确定词的双语例句
    A method for the estimation of the time difference of arrivals of the spread spectrum communication signals
    扩频通信信号的到达时差估计方法
短句来源
    Real TDOA Estimation Model for Communication Signal
    一种实用的通信信号时差估计模型
短句来源
    TDOA Estimation Method of Cycle Stationary Communication Signal
    周期平稳通信信号时差估计
短句来源
    Time Delay Estimation of Moving Jammer
    对运动干扰源的时差估计
短句来源
    Time-Delay-of-Arrival Estimator of Radar Signal Based on Cyclic Cross-Correlation
    基于循环互相关的宽带信号时差估计
短句来源
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  time delay estimation
LMS adaptive time delay estimation with two windows
      
An LMS adaptive time delay estimation method with two windows is presented.
      
It is suitable for the time delay estimation of white band-limited random signals.
      
A high resolution time delay estimation based on the maximum entropy power spectrum estimaton
      
Multipath time delay estimation is constrained by the width of the signal correlation function when using correlation based methods.
      
更多          
  time-delay estimation
Stochastic averaging analysis of a steepest-descent-type adaptive time-delay estimation algorithm
      
In this paper stochastic averaging analysis tools are used to study an adaptive time-delay estimation algorithm.
      
As applications, the problems of adaptive noise cancellation and time-delay estimation are discussed and simulated.
      
Time-delay estimation is developed in the transform domain where discrete cosine transform (DCT) coefficients of time-varying delay signals are estimated.
      
A Cyclic Statistics-Based Parametric Approach to Time-Delay Estimation
      
更多          
  delay estimation
The errors of delay estimation using the analytical models proposed in this paper are less by 3% in comparison to the SPICE-computed delay.
      
LMS adaptive time delay estimation with two windows
      
An LMS adaptive time delay estimation method with two windows is presented.
      
It is suitable for the time delay estimation of white band-limited random signals.
      
A high resolution time delay estimation based on the maximum entropy power spectrum estimaton
      
更多          


Based on the spectral correlation theory, a model and algorithms of time difference of arrival (TDOA) estimation for cyclostationary signals are presented first, and then this model is used for the TDOA estimation of the spread spectrum communication signals in the highly noisy and jamming environment. Some typical results of simulation using a computer are given finally. It is shown that this method can find wide use in the location and direction finding of the spread spectrum communication signals.

以周期谱相关理论为基础,讨论了谱相关到达时差估计模型和实现方法,将该模型应用于有噪声和干扰条件下的扩频通信信号的到达时差(TDOA)估计.给出了几种典型情况下的计算机仿真结果,阐明了它对扩频信号的测向和定位具有广阔的应用前景.

In the real three station TDOA locating system,there is frequency difference between IF output of the receiver receiving direct signal and IF ouput of the receiver recieving indirect signal ,which decreases the TDOA estimation precision.For reducing the impact from FD,this paper presents a useful and fast model to estimate TD ,then simulates the model.The simulation shows that the model reduces the effect of FD,improves the performance of TDOA estimation and decreases the computational load.

在实际三站或多站时差定位系统中 ,接收转发信号和直达信号的两接收机的中频输出信号存在频差 ,从而影响时差估计精度。为了尽量消除这一影响 ,提出了一种通用的快速的时差估计模型 ,并进行了仿真。仿真结果显示 :该模型消除了频差的影响 ,提高了时差测量精度和速度。

This paper studies the TDOA estimation method using the characteristics of cycle stationary communication signal.The study indicates that the TDOA estimation method based on spectral correlationl has better antijamming ability than the classical method of GCC,and this method can obtain the TDOA of each emitter unambiguously in the environment of multiemitters.

研究了一种利用信号谱相关特性对周期平稳通信信号进行时差估计的方法。研究表明,谱相关时差估计方法较之经典的广义互相关(GCC)法具有更强的抗干扰能力,在多辐射源环境下,该方法可以无模糊地估计各个辐射源的时差。

 
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