Method for unmanned aerial vehicle laser guidance guided missile for restraining back scattering through threshold

Abstract

A method for an unmanned aerial vehicle laser guidance guided missile for restraining back scattering through the threshold comprises the following steps that firstly, a guiding head recognizes a diffuse reflection signal according to the energy value detected through an inner laser detector; secondly, the detection threshold is set in the laser detector in the guiding head, the diffuse reflectionsignal is compared with the energy detection threshold in each laser period, the diffuse reflection signal smaller than the energy detection threshold serves as the back scattering laser echo signalto be discarded, the diffuse reflection signal larger than the energy detection threshold serves as the target laser echo signal to be captured, and the purpose of restraining back scattering is achieved. By means of the method, back scattering disturbance can be effectively restrained. The guiding head can accurately capture the target laser echo signal, and accordingly it is guaranteed that theguiding head locks the target.

Description

technical field [0001] The invention relates to a method for suppressing backscattering by a threshold for laser-guided missiles of unmanned aerial vehicles. By setting a dynamic energy detection threshold, the atmospheric backscattering laser echo signal energy whose energy is less than the threshold value is blocked, and the received energy is greater than the threshold. The target laser echo signal energy of the limit value is used to ensure the effective tracking of the UAV laser guided missile to the target. It is mainly used on the seeker of the reconnaissance and strike integrated UAV airborne laser guided missile. Background technique [0002] The combat mode of the reconnaissance and strike integrated UAV laser-guided weapon system is: the UAV flies at high altitude, searches for ground targets through the airborne visible light, infrared or radar and other photoelectric loads, and after finding the hostile target, uses the airborne laser designator to target the hos...

AI Technical Summary

Problems solved by technology

[0004] however, laser-guided missiles also have their disadvantages, being susceptible to weather conditions

When the weather condition is bad and there are a lot of suspended matter in the atmosphere, the backscattered laser echo signal echo and the target echo signal are intertwined, which is easy to cause interference to the internal detector of the laser seeker, resulting in false capture by the seeker. Target

Images