引入多帧联合统计,以提高多径时延估计精度。
Probability statistics for multipath delay of multi-frame was introduced to improve the performance of multipath estimation.
本文的主要研究内容是不可分辨的多径时延估计。
This thesis focuses on the super resolution TDE in multipath environment.
基于频域子空间思想,给出了一种适用于非周期扩频系统的多径时延估计方法。
Based on the idea of frequency domain subspace, a multipath delay estimating method for aperiodic spreading system is proposed.
在存在背景噪声干扰的情况下,本文提出了一种基于三阶累积量的自适应参数型多径时延估计方法。
Taking into account the noises correlated with signals, multipath time delay estimation based on adaptive parametric approach using third-order cumulants is proposed in this paper.
时间延迟估计可以分为单径时延估计和多径时延估计,而多径时延估计是时延估计问题中特别困难但又在实际问题中总是要解决的;
TDE problems can be divided into TDEs of single path environment and multipath environment, while the later has practical application background and is a difficult one in TDE problems.
本文主要致力于研究新的信道估计算法,明确提出了将多径信道的时延估计和幅度估计分开的信道估计方案。
The subject of this paper mainly focuses on the research of new algorithms and proposes the channel estimation principle explicitly: separate the estimation of multi-path amplitude and delay.
当采用相关法估计时间延迟时,多径时延的分辨率受到相关函数主(?)宽度的限制。
Multipath time delay estimation is constrained by the width of the signal correlation function when using correlation method.
论文研究了基于多径时延跟踪的信道估计方法,并提出了一种低复杂度的多径时延跟踪方法。
We investigate the channel estimation algorithms based on tracking multipath time delay, a low complexity multipath time delay estimation method is proposed.
该方法首先通过修正后的TST - MUSIC算法估计多径的传播时延和角度。
In the algorithm, the propagation delays and the angles of multipath are firstly estimated by a modified TST-MUSIC algorithm.
多径分量重叠衰落下的精确时延估计对很多系统而言都非常重要,对于定位技术更是如此。
Accurate time delay estimation of overlapping fading multipath components is vital for many systems, particularly for positioning technologies.
这种新方法不但能够分辨时延结构紧密的多径分量,而且能有效改善多径衰减参数的估计。
The algorithm can distinguish close-spaced multipath components, and to improve multipath attenuation parameters estimation effectively.
采用边缘检测技术有效减少了TOA参数估计中的多径干扰,提高了时延参数估计的准确度;
The leading edge detection algorithm is proposed to mitigate the effect of multipath in TOA estimation.
同步跟踪则由多径跟踪的结果精确估计PN序列码相位,并实时跟踪信道各径成分由于多普勒效应产生的时延漂移。
Following, code tracking confirm the PN code phase precisely and track every multipath component's delay drifting due to Doppler effect.
其次,在多径时延的模型基础上,本文分析研究了加权分数低阶协方差时延估计方法和基于加权非线性变换的时延估计方法。
Then, based on the multipath model, this thesis analysed and researched the time delay algorithm based on the weigthed fractional lower order covariance and the weigthed non-linear transformation.
STSC可以有效估计多径信号的传输时延,同时捕获自适应波束形成的权值。
Using STSC, propagation delays of the multi-path signal can be estimated and the weights for beam-forming can be determined simultaneously.
STSC可以有效估计多径信号的传输时延,同时捕获自适应波束形成的权值。
Using STSC, propagation delays of the multi-path signal can be estimated and the weights for beam-forming can be determined simultaneously.
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