A quantitative method for calculating spatial release region for laser
guided bomb
Abstract
Abstract: The laser-guided bomb (LGB) is a highly accurate air-to-ground
weapon that offers several benefits. Specifically, it has a high hit
rate, significant power, and is straightforward to use. Despite these
advantages, LGBs are guided by semi-active lasers, which can be affected
by atmospheric conditions. As a result, their spatial release region
(SRR) is challenging to calculate accurately, particularly in situations
with poor visibility or limited field of view. To address this issue, a
new method for determining the SRR is proposed, based on a model of the
1.06 μm laser’s transmittance through the atmosphere and the diffuse
reflection of the target surface. This approach allows for the
calculation of the capture target time of the laser seeker, as well as
the starting position of the ballistic space boundary. By utilizing
flight test data such as instantaneous velocity, altitude, off-axis
angle, and atmospheric visibility, this method can generate a more
precise estimate of the SRR. Ultimately, this can improve the accuracy
of LGBs in challenging atmospheric conditions by up to 9.2%.