Optical velocity measuring system using two cameras

摘要

A passive electro-optical range and total velocity measuring system having first and second cameras positioned along a common baseline. Control systems activate the first and second cameras at a first instance to capture a target image of a target at location T1 and at a second instance to capture a target image of the target at location T2. A range computer calculates ranges from a baseline midpoint to a target at location T1 and location T2. An angles computer calculates target displacement based on two images taken with a respective camera at locations T1 and T2 by solving a triangle defined by said locations and the camera position. A velocity computer calculates total target velocity, track velocity, and cross-track velocity. The present invention also includes a method for measuring the range and total velocity of a target using a passive elctro-optical system. <IMAGE> <IMAGE>