The objective of this dissertation is to investigate a fast and reliable method to generate three-dimensional optimal ascent trajectories for hypersonic air-breathing vehicles. The problem is notoriously difficult because of the strong nonlinear coupling amongst aerodynamics, propulsion, vehicle attitude and trajectory state. As such an algorithm matures, the ultimate goal is to realize optimal closed-loop ascent guidance for hypersonic air-breathing vehicles. The problem is formulated as a fuel-optimal control problem. The corresponding necessary conditions are given. It is shown how the original problem of search for the optimal control commands can be reduced to a univariate root-finding problem at each point along the trajectory. A fini...
To support the Global Strike mission, an autonomous trajectory optimization technique is presented t...
The flight trajectory of aerospace vehicles subject to a class of path constraints is considered. Th...
General problems associated with on-board trajectory optimization, propulsion system cycle selection...
While continuing the application of the inverse dynamics approach in obtaining the optimal numerical...
A tool which generates optimal trajectory/control histories in an integrated manner is generically a...
In this paper we present a nonlinear programming solution to one of the most challenging problems in...
In this paper we present a nonlinear programming solution to one of the most challenging problems in...
Traditionally, the design of complex aerospace systems requires iteration among segregated disciplin...
An optimal guidance algorithm for air-breathing launch vehicle is proposed based on optimal trajecto...
An integrated trajectory/control analysis algorithm has been used to generate trajectories and desir...
Intelligent optimization methods are applied to the problem of real-time flight control for a class ...
The problem of real time guidance and optimal control of Aeroassisted Orbit Transfer Vehicles (AOTV'...
The actual air traffic system, based on way points, airways and procedures, is evolving to a new pa...
This dissertation focuses on the development of a closed-loop endo-atmospheric ascent guidance algor...
To support the Global Strike mission, an autonomous trajectory optimization technique is presented t...
To support the Global Strike mission, an autonomous trajectory optimization technique is presented t...
The flight trajectory of aerospace vehicles subject to a class of path constraints is considered. Th...
General problems associated with on-board trajectory optimization, propulsion system cycle selection...
While continuing the application of the inverse dynamics approach in obtaining the optimal numerical...
A tool which generates optimal trajectory/control histories in an integrated manner is generically a...
In this paper we present a nonlinear programming solution to one of the most challenging problems in...
In this paper we present a nonlinear programming solution to one of the most challenging problems in...
Traditionally, the design of complex aerospace systems requires iteration among segregated disciplin...
An optimal guidance algorithm for air-breathing launch vehicle is proposed based on optimal trajecto...
An integrated trajectory/control analysis algorithm has been used to generate trajectories and desir...
Intelligent optimization methods are applied to the problem of real-time flight control for a class ...
The problem of real time guidance and optimal control of Aeroassisted Orbit Transfer Vehicles (AOTV'...
The actual air traffic system, based on way points, airways and procedures, is evolving to a new pa...
This dissertation focuses on the development of a closed-loop endo-atmospheric ascent guidance algor...
To support the Global Strike mission, an autonomous trajectory optimization technique is presented t...
To support the Global Strike mission, an autonomous trajectory optimization technique is presented t...
The flight trajectory of aerospace vehicles subject to a class of path constraints is considered. Th...
General problems associated with on-board trajectory optimization, propulsion system cycle selection...