Abstract
The ldquoatmosphere-space interactions monitorrdquo (ASIM) is a payload to be mounted on one of the external platforms of the Columbus module of the International Space Station (ISS). The instruments include six video cameras, six photometers and one X-ray detector. The main scientific objective of the mission is to study transient luminous events (TLE) above severe thunderstorms: the sprites, jets and elves. Other atmospheric phenomena are also studied including aurora, gravity waves and meteors. As part of the ASIM Phase B study, on-board processing of data from the cameras is being developed and evaluated. On-board there are six video cameras each capturing images of 1024times1024 pixels of 12 bpp at a frame rate of 15 fps, thus totalling 1080 Mbits/s. In comparison the average downlink data rate for these images is projected to be 50 kbit/s. This calls for efficient on-board processing to select and compress the data. Algorithms for on-board processing of the image data are presented as well as evaluation of the performance. The main processing steps are event detection, image cropping and image compression. The on-board processing requirements are also evaluated.
| Original language | English |
|---|---|
| Title of host publication | Proc. 10. International Workshop on Signal Processing for Space Communications |
| Publisher | IEEE |
| Publication date | 2008 |
| Pages | 1-7 |
| ISBN (Print) | 9781424425723 |
| DOIs | |
| Publication status | Published - 2008 |
| Event | International Workshop on Signal Processing for Space Communications - Rhodos, Greece Duration: 1 Jan 2008 → … Conference number: 10 |
Conference
| Conference | International Workshop on Signal Processing for Space Communications |
|---|---|
| Number | 10 |
| City | Rhodos, Greece |
| Period | 01/01/2008 → … |
Keywords
- image resolution
- geophysical signal processing
- video cameras
- data compression
- atmospheric techniques
- image sequences