Abstract:

The emergence of the stealth targets severely compresses air defense missile radar seeker detection power. The process of terminal guidance is inadequate for the guidance precision. Increasing the coherent accumulation time is one of the effective methods to improve the seeker range. A long time accumulation algorithm based on blind acceleration estimation is studied for pulsed Doppler radar to detect stealth target. Without any outside assistance information, the algorithm improves the seeker intercepting sensitivity by increasing the coherent accumulation time. Through the simulation calculation, the seeker sensitivity is improved by 3.22 dB when the detection probability is not less than 99%.