Abstract:For traditional aircraft cooperative beacon measurement, ordinary light is used as the beacon which does not have the adaptability to fit complex environment, especially in the case of active interference. How to identify the becon accurately has become a key research issue in the field of television tracking and measurement. This paper investigates the beacon design, identification and positioning methods, uses the laser light as the cooperative beacon, designs the adjustable driving circuit, applies the information coding modulation technology to the modulated light, and realizes the adjustable cooperative beacon. And the coupling imaging demodulation algorithm of the modulation is designed which can effectively distinguish interference target and the real target. The experiments show that the modulated beacon designed in this paper meets the requirements, and the modulation and demodulation algorithm can identify and position the cooperative beacons accurately and has the ability of anti-interference.