研究了海洋表面流方位估计的快速实现方法。
The fast realization of bearing estimation of ocean currents is investigated.
提出了基于重要性抽样的最大似然方位估计方法。
Maximum likelihood DOA estimator based on importance sampling (ISMLE) is proposed.
酉MUSIC算法可以降低计算复杂度，提高方位估计性能。
The unitary MUSIC algorithm can reduce the computational complexity, improve the performance of bearing estimates.
提出了基于重要性抽样的贝叶斯最大后验概率方位估计方法。
Bayesian maximum a posterior DOA estimator based on importance sampling (ISBM) is proposed.
宽带波束域处理是实现水下目标高分辨方位估计的重要途径。
The broadband beam space high resolution processing possesses lower resolution threshold and better performance than the element space processing.
进一步研究了基于吉布斯抽样的贝叶斯最大后验概率方位估计方法。
Bayesian maximum a posterior DOA estimator based on Gibbs sampling (GSBM) is further investigated.
加权直方图方位估计法能从宽带相干干扰中检测目标，估计目标方位。
The other is weighted bar graph approach which can detect a target in broadband coherent interference and estimate its azimuth Angle.
根据不同的噪声背景和信号形式，单矢量水听器有多种方位估计方法。
According to different existences of noise background and signals, there are several approaches to azimuth Angle estimation based on a single vector hydrophone.
基于低空测角模型，提出了一种基于四阶累积量的直达波方位估计算法。
According to the model of low Angle bearing, a new direct signal DOA estimation algorithm is proposed based on fourth-order cumulant.
提出一种应用求面积重心进行目标方位估计的方法，阐明了该方法的原理。
A method of target bearing estimation by means of center of gravity of area is given and the principle of the method is explained.
新算法不需要方位已知的辅助校正源，可以在线完成实际信源的方位估计。
The new algorithm does not need the assistant calibration sources that directions are known and may estimate direction of actual source online.
完成了恒定束宽波束形成以及宽带源方位估计算法在DSP硬件系统中的实现。
The constant beam-width beam-former and wideband DOA estimation algorithms are realized in the DSP hardware systems.
利用矢量水听器进行方位估计的方法主要有声强检测、旋转波束和矢量方程组等。
There are several ways of estimating direction of arrival in use of the vector hydrophone: acoustic intensity detection, beam revolving and vector equations.
本文针对水声设备的实际应用，研究了波束域高分辨方位估计的MUSIC方法。
This paper studies beam-space MUSIC for direction-of-arrival estimation of underwater targets.
仿真结果表明，在稳定分布假设下，基于谱测度的多目标方位估计法是合理有效的。
Simulation results show that in the alpha stable distribution assumption, multi-target direction estimation method is more reasonable and effective based on the spectral measure.
按照耐奎斯特空间采样定理，阵元间距超过半波长将会带来方位估计的周期性模糊。
Extending the uniform intersensor spacing beyond a half-wavelength would lead to a set of cyclically ambiguous direction-of-arrival estimates, in accordance with the spatial Nyquist sampling theorem.
在数学上描述了矢量传感器的输出模型，矢量传感器互谱估计以及由此得出的方位估计。
The output model of vector sensor, vector sensor cross-spectral estimation and target bearing estimation are given.
从统一考虑信号检测和方位估计的观点看来，这种波束形成方法最适用于信号的基阵处理。
From the viewpoint of considering signal detection and bearing estimation in a unified way, this beamforming is optimum to array signal processing.
论文从实际应用的角度出发，全面论述了子空间类多目标方位估计和跟踪算法的理论和方法。
Aiming at the applications in engineering, the principles of subspace algorithms about the DOAs estimating and tracking are discussed comprehensively in this dissertation.
针对水下宽带处理的应用，研究了宽带高分辨方位估计的相干信号子空间处理方法(CSS)。
Aiming at the application of underwater wide band processing, coherent signal-subspace processing method (CSS) for high resolution DOA estimation of under water wide band sources was studied.
介绍了具有方位估计功能的二元浮标阵用于跟踪水下动目标的模型，并描述了跟踪精度的空间分布。
The model with the two-buoy arrays used for tracking of underwater moving target for bearing estimation is presented, and the spatial distribution of tracking accuracy is described.
恒定束宽波束域噪声是空间相关的非白噪声，这给宽带波束域高分辨方位估计方法的性能带来影响。
The noise in constant beam-width beam space is spatial correlative and color (non white), which affects the performance of wide-band-beam-space high resolution DOA (Direction of Arrival) estimator.
为了给方位估计的性能分析预备必要的统计知识，必需首先研究单矢量传感器互谱估计的统计特性。
In order to prepare statistical technology for the property analysis of bearing estimation, the statistical property of single vector sensor must be studied first.
子空间类方法、ESPRIT和WSF是几种典型的高分辨方位估计方法，它们具有良好的统计性能。
These estimators include the signal subspace methods, ESPRIT and WSF. They possess good statistical performance.
本文采用矢量水听器均匀线阵研究了利用MUSIC算法对声源进行方位估计，以提高对源方位的估计精度。
In this paper, the DOA of sources are estimated using MUSIC algorithm by a vector-hydrophone ULA (Uniform Linear Array) to improve the DOA estimation resolution.
应用子空间扰动分析研究了宽带CSS法的统计性能，得出了宽带CSS法方位估计误差随信噪比变化的关系。
By using subspace disturbing analysis to investigate the statistical performance of the CSS, the relationship between the DOA estimation error and the signal to noise ratio (SNR) was presented.
矢量水听器由于能获取声场中标量(声压)和矢量(振速)信息，因此单个的矢量水听器就可实现目标方位估计。
An acoustic vector hydrophone measures the scalar acoustic pressure and the vector acoustic particle velocity, thus the DOA can be estimated by single vector hydrophone.
深入分析了波束域高分辨方位估计性能，捉出了一种基于均匀线列阵的密集波束域MUSIC（DBMUSIC）法。
The performance of beamspace high-resolution direction-of-arrival (DOA) estimation is analyzed. A dense beamspace MUSIC (DBMUSIC) algorithm for the uniform linear array (ULA) is proposed.
文中介绍了一种新的信号方位估计原理——相位匹配原理(PMT)，该原理计算简单、且不受噪声相关特性的影响。
A new method for Direction of Arriving (DOA) Estimation-Phase Matched Theory (PMT) is introduced, which computation complexity is simple and performance is unaffected by unknown correlated noise.
文中介绍了一种新的信号方位估计原理——相位匹配原理(PMT)，该原理计算简单、且不受噪声相关特性的影响。
A new method for Direction of Arriving (DOA) Estimation-Phase Matched Theory (PMT) is introduced, which computation complexity is simple and performance is unaffected by unknown correlated noise.
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