Parijat Bhowmick

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––In this paper, first the transfer function and block diagram model of a flight path rate demand autopilot (two loop) in pitch plane has been shown and then its state model has been developed. Then state feedback controller has been designed. Thereafter both of Luenberger and Das & Ghosal Observers (DGO) are implemented for the above said two loop(More)
––A flight path rate demand modified three-loop lateral missile autopilot design methodology for a class of guided missile, based on state feedback, output feedback, reduced order Das & Ghosal observer (DGO) is proposed. The open loop undamped model of three-loop autopilot has been stabilized by using pole placement and state feedback. The non-minimum phase(More)
A flight path rate demand modified two-loop lateral missile autopilot design methodology for a class of guided missile, based on state feedback, reduced order Das & Ghosal observer (DGO) and Linear Quadratic Regulator (LQR), is proposed. The open loop undamped model of two-loop autopilot has been stabilized by using pole placement and state feedback.(More)
In this paper a design procedure for construction of reduced order unknown input observer, for linear time invariant system subjected to unknown input is presented based on generalized matrix inverse. Das & Ghosal observer is extended and used for this purpose. A condition is proposed and to be satisfied to develop such an observer. Finally an illustrative(More)
–– A flight path rate demand modified two-loop lateral missile autopilot design methodology for a class of rear controlled guided missile, based on state feedback, output feedback, reduced order Das & Ghosal observer (DGO) and PI controller is proposed. The open loop undamped model of two-loop autopilot has been stabilized by using pole placement and state(More)
–– A flight path rate demand modified three-loop lateral missile autopilot design methodology for a class of guided missile, based on state feedback, output feedback, reduced order Das & Ghosal observer (DGO) and Linear Quadratic Regulator (LQR), is proposed. The open loop undamped model of three-loop autopilot has been stabilized by using pole placement(More)
–– A Roll Position demand (as well as Roll Position Control) missile autopilot design methodology for a class of guided missile, based on state feedback, Ackermann pole-placement and reduced order Das & Ghosal observer (DGO), is proposed. The open loop unstable model of the roll control (or roll position demand) autopilot has been stabilized by using pole(More)
–In this paper, an efficient method to linearize dynamic models about a linear trajectory for two link robot manipulators is developed from " straightforward " Lagrangian formulation and implementation of LQR (Linear Quadratic Regulator).This method is very simple and systematic. It can be applied to compute the feed forward control law (i.e. generalized(More)
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