Double CCD intersection positioning system for public diagnosis carrying platform

As a non-contact measurement technique, charge-coupled device (CCD) intersection measurement is used for the coordinates positioning of flying targets. The model of the double CCD intersection positioning system for public diagnosis carrying platform was established. The imaging system with the object height of 8 mm, the lens resolution of 8.3 m and the MTF of greater than 0.5 at 61 lp/mm was designed for the positioning system, as well as the adjustment system which adopted double universal joints structure to achieve the 2D pointing adjustment and processed the video images to offer an accurate pointing to diagnosis equipment. The error analysis results indicated that the positioning accuracy of the system was better than 16 m, and the system could be installed on the front end of the public diagnosis carrying platform.