Elbaum M, Diament P, King M, Edelson W
Appl Opt. 1977 Jul 1;16(7):1982-92. doi: 10.1364/AO.16.001982.
To estimate the angular position of targets with pulsed laser radars, their images may be sensed with a fourquadrant noncoherent detector and the image photocounting distribution processed to obtain the angular estimates. The limits imposed on the accuracy of angular estimation by signal and background radiation shot noise, dark current noise, and target cross-section fluctuations are calculated. Maximum likelihood estimates of angular positions are derived for optically rough and specular targets and their performances compared with theoretical lower bounds.
为了用脉冲激光雷达估计目标的角位置，可以使用四象限非相干探测器感测其图像，并对图像光计数分布进行处理以获得角度估计值。计算了信号和背景辐射散粒噪声、暗电流噪声以及目标横截面波动对角估计精度的限制。推导了光学粗糙目标和镜面目标角位置的最大似然估计，并将其性能与理论下限进行了比较。
