基于空间飞行器的来袭激光方向探测

Attack Direction of Laser Based on the CCD Detection

采用拦截式方法测量激光来袭方向比较容易,如采用四象限探测器,但非拦截式的测量目前国内外并无先例。本文给出一种无配准立体视觉方法:两个摄像头从各自的图像中独立采点,独立计算,最后进行数据融合,以确定激光来袭方向。采点的过程分别从上下两个方向逐行进行,遇到激光束的像点立即停止,因此不需要扫瞄整幅图像。将这种方法用于非拦截式激光探测中,不仅可以确定激光的来袭方向,也可以满足实时性的要求。

It is easy to detect the attack direction of laser by using interceptive method, such as quadrant detectors, but there has not been any non-interceptive methods used to detect the direction of attack laser. A stereo vision method without matching is proposed. Two CCD cameras sample points and calculate independently, and then the direction of the attack laser is confirmed by data fusion. For an obtained image, sample process starts from the upside row and downmost row simultaneously and orderly until a laser image point is found. The stop condition of the process means that sampling doesn’t have to scan the whole image. Used in non-interceptive laser detection, the method not only can detect the direction of attack laser, but also can satisfy the real-time requirement.