Earth station interface for demand assignment applications
Abstract
The High Speed Burst Modem (LBM36A) processes data from the Interface Control and Codec Unit (LCC36A) and the Western Union Earth Station. The high bandwidth signal processing tasks, such as modulation, demodulation, preamble detection, etc., are primarily performed by special purpose hardware. The microprocessor is primarily designed to perform controlling and monitoring functions. The LBM36A is a functional enhancement of the LBM36 burst modem. Due to the nature of the enhancements, additional software must be created and integrated into the general structure. This can be done most clearly by modifying the LBM36 software structure from its present dual path format to a simpler one path structure. The LBM36A must perform all the previously mentioned functions in a manner identical to the LBM36. In addition, it must perform uplink tuning, downline loading, enhanced built-in-test, and other functions. This quarterly technical report will compare the LBM36 and the LBM36A software structures.
- Publication:
-
Quarterly Technical Report
- Pub Date:
- June 1982
- Bibcode:
- 1982mcom.reptR.....
- Keywords:
-
- Computer Networks;
- Ground Stations;
- Satellite Networks;
- Signal Processing;
- Data Links;
- Data Processing;
- Demodulation;
- Microprocessors;
- Communications and Radar