Abstract
AbstractIn order to improve the cooperative performance, the gliding phase is added before the cooperative terminal guidance phase of multi-hypersonic cruise missiles in this paper. In the gliding phase, we use the constant bank angle method to estimate the related parameters. And in the top-level cooperative guidance strategy, the amplitude of bank angle and attack angle profile can be adjusted to meet the constraints of time and velocity, which provides a good initial condition for the terminal guidance phase. In the terminal guidance phase, impact angle is controlled in the longitudinal direction by using biased proportional navigation guidance law (BPNG). To achieve the closed-loop impact time cooperation, two different guidance laws are adopted in the lateral direction. One is based on time-varying proportional coefficient, and the other is using BPNG. Finally, the simulation results demonstrate the cooperative strategy in the gliding phase and the improved guidance laws with the constraints of impact angle and closed-loop impact time in this paper are effective.KeywordsGliding phaseGuidance lawImpact angleClosed-loop impact time
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