Laser reflection echo signal detection and calculation under multi-attitude intersection

Abstract

To improve the detection capability of laser fuze, this paper researches the laser echo signal detection method and echo power calculation method on laser fuze. From the multi-attitude intersection relation of projectile and target, we analyze the laser echo characteristics of target, set up the modeling of laser echo power by using the finite element meshing method. Taking into account the parameters of yaw angle and pitch angle and roll angle, we derive the target reflection laser echo power calculation function by combining the non-Lambertian and bidirectional reflection function of target's surface, establish the target detection probability calculation model. According to the established laser echo signal and echo power calculation function, we calculate the laser echo power and detection probability under the multi-attitude intersection conditions and different detection distances. Through simulation tests, the test result accords with the theoretical model.

KEYWORDS:

• Laser fuze
• projectile
• detection
• laser echo power
• detection probability
• finite element meshing

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by National Natural Science Foundation of China: [grant number 62073256]; Xi'an Science and Technology Innovation talent service enterprise project: [grant number 2020KJRC0041]; the Key Science and Technology Program of Shaanxi Province: [grant number 2020GY-125].