Ratnoo, Ashwini and Ghose, Debasish (2009) State-Dependent Riccati-Equation-Based Guidance Law for Impact-Angle-Constrained Trajectories. In: Journal Of Guidance Control And Dynamics, 32 (1). pp. 320-326.
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IN MANY advanced guidance applications, it is required to intercept the target from a particular direction: that is, to achieve a certain impact angle [1–3]. Closed-form solutions for energyoptimal impact-angle-constrained guidance laws have been proposed for a stationary target by Ryoo et al. , who used the linear quadratic regulator technique after linearizing the engagement kinematics. The guidance law proposed by them captures all impact angles from any initial launch angle in a planar engagement scenario. Lu et al.  solved the problem of guiding a hypersonic gliding vehicle in its terminal phase to a stationary target using adaptive proportional navigation guidance. Ohlmeyer and Phillips  extended the idea of explicit guidance (proposed by Cherry ) to include a terminal impact angle constraint. However, the simulations by Ohlmeyer and Phillips  are carried out only for a vertical impact against a stationary target, and the impact angle errors encountered are sensitive to the launch altitude.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to American Institute of Aeronautics and Astronautics.|
|Department/Centre:||Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)|
|Date Deposited:||04 Nov 2009 11:09|
|Last Modified:||19 Sep 2010 05:25|
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