基于立体像对的目标姿态参数求解技术

Measurement of Pose Parameters of Objects Based on Stereo Images

在常规靶场刚体飞行目标姿态参数的光学测量中,针对轴对称回转体目标,广泛采用中轴线法求解;而针对非轴对称回转体目标,由于目标成像后中轴线难以准确提取,本文将采用模型匹配法弥补中轴线法对目标适应能力的不足。通过模拟目标实验和数据处理,表明这2种方法能满足靶场制导类刚体目标的测姿精度要求,而模型匹配法的适应性更强,且自动化程度更高。

Axis-line method is widely used abroad in optical measurement of rigid body flight pose parameters in conventional ranges for axial-symmetric gyrator objects.However,for non-axial-symmetric gyrator objects,it is rather difficult to extract accurately the axis-line after imaging.This paper uses a model-matching method to compensate for the inadequacy of axis-line method.Object simulation experiments and data-processing results show that the model-matching method performs better and achieves higher degree automation although both methods meet pose measurement accuracy requirements of guided rigid body objects at ranges.