MICROWAVE SYSTEMS FEASIBILITY STUDY

FEASIBILITY STUDIES OF TWO APPROACHES FOR SENDING HIGH-SPEED TELEMETRY DATA VIA DIGITAL MICROWAVE SYSTEMS ARE PROPOSED. IN THE FIRST APPROACH, TELEMETRY INPUTS ARE MULTIPLEXED INTO A T2 SIGNAL. AS MANY AS 3 OF THESE INPUTS CAN EACH HAVE RATES UP TO 1.8 MB/S. THE SECOND APPROACH INVOLVES AN INVERSE MULTIPLEXER, WHICH SPLITS AT 1.8 MB/S INPUT BETWEEN TWO T1 STREAMS. IN EITHER APPROACH, THE MULTIPLEXED OUTPUT MAY BE USED AS AN INPUT TO AN EXISTING MULTIPLEXER IN DIGITAL MICROWAVE TRANSMISSION SYSTEMS. REMOTE DEMULTIPLEXERS RECONSTITUTE THE ORIGINAL INPUT BIT STREAMS. AFTER ESTABLISHING PRECISE REQUIREMENTS AND PERFORMING PRELIMINARY FEASIBILITY DETERMINATIONS, ONE APPROACH WILL BE SELECTED FOR A DETAILED FEASIBILITY STUDY, INCLUDING MULTIPLEXER FRAME STRUCTURE, SYNCHRONIZATION, SYSTEM ARCHITECTURE, AND PERFORMANCE ESTIMATES. ASSUMING FEASIBILITY IS DEMONSTRATED, A FUNCTIONAL SPECIFICATION OF THE SELECTED MULTIPLEXER WILL BE GENERATED.