학술논문

Automatic forward motion compensation for micro satellites
Document Type
Conference
Source
IEEE AFRICON. 6th Africon Conference in Africa, Africon Africon Conference in Africa, 2002. IEEE AFRICON. 6th. 1:7-12 vol.1 2002
Subject
Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Power, Energy and Industry Applications
Robotics and Control Systems
Motion compensation
Satellites
Africa
Automatic control
Earth
Image resolution
Motion control
Image sensors
Extraterrestrial measurements
Motion measurement
Language
Abstract
South Africa's first micro satellite, SUNSAT, was operational in orbit for 23 months since its NASA-sponsored launch on February 23, 1999. SUNSAT is a graduate student-developed satellite from the University of Stellenbosch in South Africa. Research work is in progress on improving SUNSAT's imager from 15 m to 2.5 m resolution. This will require the use of forward motion compensation for exposure control. This paper presents automatic forward motion compensation (FMC) for micro satellites using a exciting new Earth sensor that measures the boresight's projection speed on the earth directly with no drift by making use of a series of images. High-resolution imagers will be controlled by this technique to ensure high quality stereo images.