积分式中的被积函数包含一噪声强度垂直指向性因子，海洋介质分层条件通过该指向性因子影响噪声场的空间相干。
The integrand includes a multiplying factor of the vertical directivity of the noise intensity, and the layered ocean environment affects the spatial coherences via this directivity factor.
本文介绍光的相干性概念，其中包括空间相干性、时间相干性和复相干函数。
This paper presents coherence concepts including time coherence, spatial coherence and complex correlation function.
在空间域不相干环境背景噪声的假设前提下推导出成像算法的点-扩展函数。
Under the assumption of spatially-incoherent ambient noise, an analytical expression for the point-spread function of the imaging algorithm is derived.
针对相干信号源分布式目标，在具体的空间信号分布函数形式未知的情况下，提出了一种基于盲辨识的分布式目标波达方向（DOA）估计方法。
This paper proposes a blind identification approach to direction of arrival estimation of coherently distributed sources without knowing the accurate function forms of the angular signal density.
针对相干信号源分布式目标，在具体的空间信号分布函数形式未知的情况下，提出了一种基于盲辨识的分布式目标波达方向（DOA）估计方法。
This paper proposes a blind identification approach to direction of arrival estimation of coherently distributed sources without knowing the accurate function forms of the angular signal density.
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