研究了基于时延估计的低空目标声测无源定位理论与算法。
The theory and algorithm for low altitude target localization based on time delay estimation (TDE) is studied.
本文基于圆阵列及其输出时延提出了一种空间信号频率、方位角和仰角的联合参数估计新方法。
Based on uniform circular array and its elements output signal delay, a novel method for estimation of spatial frequency, azimuth and elevation is presented.
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.
提出了一种基于平方相干函数的频域自适应最大似然时延估计算法。
A frequency domain adaptive maximum likelihood (ML) time delay estimation algorithm based on squared coherence function is proposed.
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.
为了提高时延估计精度，在广义相关时延估计的基础上本文又提出了基于基小波的二次加权法。
To improve the time delay estimation accuracy, this paper introduces the re-weighting method with mother wavelets based on the generalized correlation method for estimation of time delay.
针对水下声系统的应用背景，详细介绍了两种时延估计算法：基于特征值分解的MUSIC算法和基于最小二乘法的时延估计算法。
For the application of underwater acoustic systems, we present two algorithms in detail: MUSIC algorithm based on the eigenvalue decomposition and least square method.
目前，卫星干扰源时延和频移定位参数的估计主要采用基于相关原理的互模糊函数算法(CAF)进行联合估计。
At present, the joint estimation methods of time delay and frequency shift for satellite interference localization are mainly based on the principle of correlation, such as CAF algorithm.
论文分析了基于语音激励信息的时间延迟算法分类，描述了基于EGCI的时延估计方法基本原理。
This paper analyzes the new type of method for localizing the source using the excitation information in speech, and presents the theory of time-delay estimation based on the EGCI.
在时延估计方法研究中，提出了超宽带雷达中基于小波多分辨方法的时延估计算法。
In the research of time delay estimation in ultra-wide band Radar, a time delay estimation method based upon the multirate theory in wavelets analysis is proposed.
本文提出了一种基于最小二乘（LS）自适应AR建模的时延估计方法。
A high resolution time delay estimation based on the LS lattice adaptive AR power spectrum estimation is proposed.
最后给出基于建立信号模型和互功率谱相位的时延估计方法。该方法对噪声和混响均具有很强的鲁棒性。
A time delay estimation method based on onset signal and CSP is proposed, it's robust to noise and reverberation.
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.
由时延和角度信息，得到一种基于参数信道模型的信道估计方法。
With the information of multipath delays and angles, an estimator based on parametric channel model is derived and the estimator's performance is analysed.
引入非均匀时延构造虚拟阵列变换的变换矩阵，提出一种基于二次虚拟阵列变换的到达角估计方法。
This paper applies the array manifold interpolation wideband direction finding algorithm on uniform linear array, and gives other two methods of seeking transformation matrix.
引入非均匀时延构造虚拟阵列变换的变换矩阵，提出一种基于二次虚拟阵列变换的到达角估计方法。
This paper applies the array manifold interpolation wideband direction finding algorithm on uniform linear array, and gives other two methods of seeking transformation matrix.
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