A METHOD AND CIRCUIT ARRANGEMENT FOR THE REALIZATION OF PCM-CHANNEL UNITS OF SCPC SATELLITE-COMMUNICATION SYSTEMS

摘要

A method to centralize and restructure systemtechnical jobs of PCM-channel units of SCPC satellite-communication systems during a sampling period. The system-technical tasks of a PCM-channel unit are restructured into parallel-in-time disjunct jobs and are grouped that way that we order to each computing element a job to be run at the same time - simultaneously - and at the end of the first job to each computing element a new job is ordered to be run after the first one also simultaneously during the same sampling period, and so forth... A circuit arrangement is invented in which a computing capacity of the computing elements is provided. The computing elements are communicating with each other and with other system elements via two-way common address/data/control bus-system. The computing elements are connected to an interrupt generator by means of interrupt connections. A common memory is connected also to the common address/data/control bus. The computing elements are connected to a switches-displays block, to a modemunit and to a codec unit via two-way ports and via a blocksynchron detector - also by means of the common address/data/control bus.