以“多次前向、单次后向散射”激光测深回波信号数学模型为理论基础，分析了接收FOV 对激光测深回波信号的影响。讨论了不同海水深度情况下FOV 损失因子与接收器FOV 之间的关系。以辨别力指数D 作为激光测深性能评价标准，分析了晴空条件下机载激光测深系统辨别力指数D 与接收器FOV 的关系，进一步得到在不同最大探测水深情况下的最优FOV。根据分析结果可以对机载激光测深系统的接收FOV 进行优化，为我国研究新型的机载激光测深系统提供理论依据。

The effect of receive field of view (FOV) on laser sounding echo signals is analyzed based on“multipleforward scattering and single-backscattering”laser sounding echo signal mathematical model. The relationship between the FOV loss factor and the receiver FOV is discussed under different depths. D -index of discriminability of airborne laser bathymetric system is served as a performance evaluation criterion and the relationship between it and receiver FOV is analyzed. Further, the optimal FOV for different maximum detection depths is derived. The result in this paper can contribute to the optimization of FOV of airborne laser bathymetric system. Thus theoretical basis for the development of new airborne laser bathymetry system is provided.