Laser guidance seeker and guiding method based on same

Abstract

The invention discloses a laser guidance seeker and a guiding method based on the same. The guidance seeker is arranged on an aircraft for capturing and locking a target; the guidance seeker comprises a four-quadrant PIN laser detector and an APD laser detector; the four-quadrant PIN laser detector and the APD laser detector are arranged on the same rack; the APD laser detector is arranged on the front end of the four-quadrant PIN laser detector for capturing a remote target; the four-quadrant PIN laser detector is used for locking the captured target in a short distance; and a combined detector design scheme is adopted, so that the detection identification distance of the laser semi-active guidance seeker reaches a distance of more than 10 km. Therefore, on the basis of total-native elements, the action distance of the guidance seeker is improved on the premise that the irradiation energy of a laser irradiator is not increased. The weight of the whole aircraft tracking system and the laser semi-active guidance seeker, the designing difficulty and the cost are greatly lowered. The laser guidance seeker has the advantages that the design is reliable; the cost is reasonable; batch production is easy; and the like.

Description

technical field [0001] The optical system of the laser semi-active seeker involved in the invention, in particular to a laser seeker and a guiding method thereof, adopts a combined detector design scheme, so that the detection and identification distance of the laser semi-active seeker reaches more than 10km . Background technique [0002] At present, laser semi-active seekers in developed countries such as the United States use four-quadrant APD laser detectors. However, it is very difficult to use the four-quadrant APD laser detector technology for the seeker in batches. At present, only a few developed countries can master it and can produce it in batches. And these countries have a complete embargo on such detectors from China. Moreover, APD laser detectors are technically difficult to use, and temperature compensation of the output signal is required, resulting in a large blind area of ​​the seeker. Since our country does not have the capacity for mass production, it...

AI Technical Summary

Problems solved by technology

However, the PIN laser seeker also has an obvious disadvantage: if an individual laser irradiator is used, the seeker's working distance can only reach 2~3km

Even if the airborne laser irradiator is used, the working distance of the seeker can only reach 5~6km

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