Experimental Implementation of Sdre Method for Autonomous Rendezvous and Docking Maneuvering
نویسندگان
چکیده
In this paper a nonlinear controller technique, referred to State-Dependent Riccati Equation (SDRE), is exploited to handle relative position tracking and attitude synchronization problem involving in docking manoeuvring operations between two Earth orbiting satellites. More specifically a testbed developed by DLR-Institute of Space Systems is used for testing the proposed control algorithm. The experimental results show the effectiveness of SDRE controller for proximity operations problem and its feasibility for real-time implementation on the hardware.
منابع مشابه
A 5-dof Experimental Platform for Autonomous Spacecraft Rendezvous and Docking
In this paper we describe a new experimental facility at the School of Aerospace Engineering at Georgia Tech that will allow realistic testing of spacecraft autonomous rendezvous and docking (ARD) maneuvers. The previous 3-DOF Integrated Attitude Control System (IACS) was modified and upgraded to a new 5-DOF Spacecraft Simulator for Autonomous Rendezvous and Docking (SSARD) facility by adding t...
متن کاملReal-time 6dof Terminal Guidance for Autonomous Spacecraft Capture Free Floating Objects Using State Dependent Model Predictive Control
Abstract: This paper investigates the optimal rendezvous with power-limited propulsion systems and collision avoidance. A 26-state dynamic model is established including both translational and rotational dynamics. This model is effective for describing autonomous rendezvous with both a three-axis attitude stabilized target and a tumbling one. Collisions are prevented through setting a safety sp...
متن کاملOperator Monitoring and Support System for Rendezvous and Docking
Rendezvous and docking operations of unmanned supply vehicles, e.g. presently Progress within the Russian Mir Space Station scenario, and later within the International Space Station scenario the Russian Progress, the European ATV and the Japanese HTV, are automatic but not fully autonomous. Safety of crew, vehicle security of the target station and mission success assurance require monitoring ...
متن کاملRelative Position and Attitude Coupled Control for Autonomous Docking with a Tumbling Target
An integrated coupled control strategy for a servicing spacecraft autonomously approaching and docking with a freely tumbling target is studied. To implement capturing successfully, the docking port of the servicing spacecraft should be always pointing to the docking port of target during close rendezvous and docking, which involves proximity maneuvering of coupled position and attitude simulta...
متن کاملSdre Control with Nonlinear Feedforward Compensation for a Small Unmanned Helicopter
COMPENSATION FOR A SMALL UNMANNED HELICOPTER Alexander Bogdanov , Eric Wan OGI School of Science and Engineering, OHSU 20000 NW Walker Rd, Beaverton, Oregon 97006 In this paper we report on the state-dependent Riccati equation (SDRE) control of a small unmanned helicopter for autonomous agile maneuvering. SDRE control requires reformulation of the vehicle dynamics into a pseudo-linear form. For...
متن کامل