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A trajectory tracking method which can be used in the complex mission profile is proposed in the maneuver flight of the plane-symmetrical vehicle. Depending on the velocity and position parameters of the standard trajectory, the direction of the velocity can describe the maneuver mode of the vehicle exactly. A universal principle of the trajectory subsection is formulated based on the direction of...
The deceleration control by the coning motion without the velocity profile is proposed for common aero vehicle (CAV) terminal guidance, which restricted by velocity and position requisition. First, one-order approximate model of velocity and long range is derived, which transform the guidance deceleration control to closed loop guidance interrelated by terminal velocity. Velocity precision is improved...
In this paper, the performance measure problem is considered for a linear time-varying system with non-zero initials and bounded external disturbance in a finite-time horizon. A finite-time generalized H2 gain is proposed which is defined as a ratio of the maximal penalty output and the sum of the energy of the exogenous input and nonzero initial conditions in a finite time interval. The finite-time...
In this study, the authors consider a coordinated target assignment problem where a group of unmanned flight vehicles cooperate with each other to combat with a set of target vehicles which may perform various manoeuvres. Each flight vehicle is expected to be optimally assigned to a manoeuvring target vehicle such that the maximal possibility of successful interception can be guaranteed. Considering...
Assigning targets to multiple flight vehicles which perform a cooperative mission becomes more involved considering the complex environments. In this paper, an coordinated target assignment scheme is proposed based on a finite-time gain measure. The target assignment problem is formulated as multiple Linear Time Varying (LTV) systems. A finite-time generalized H2 measure and its performance criterion...
In this paper, the control allocation problem is discussed for a flight vehicle with multiple actuators, that is lateral jets and aerodynamic fins. The usage of aerodynamic surface is not constrained, while the usage of lateral jets has to be minimized due to the limited amount of fuel available on-board. A switching logic is employed to allocate the two actuators optimally. We formulate the control...
In this paper, the H2 performance of the missile terminal guidance system that incorporates various target maneuvers is first studied over a finite horizon. A novel approach named finite-time generalized H2 with initial conditions for a linear time-varying (LTV) system is adopted. Necessary and sufficient condition, which guarantees that the above mentioned performance measure is less than a prespecified...
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