HIGH RATE PCM DATA RECEIVING, RECORDING AND RELAYING

Abstract

This paper discusses the specific applications at White Sands Missile Range to certify the airborne telemetry packages, to receive, relay, and record Pulse Code Modulation (PCM) telemetry data. One of the most critical areas of data transmission throughout the Range is that of telemetry data. As digital data transmission becomes more commonplace, it becomes necessary to develop new methods for receiving, relaying, and recording digital telemetry data. A recent requirement to support reception, relay, record, and processing of a ten-megabit PCM telemetry signal drove the development of the system described in this paper. New receiving equipment was procured in order to handle the high bandwidth. Two new methods are now being used at White Sands Missile Range to relay high rate PCM data. - One is the Lightwave Fiber System. There are four telemetry lightwave links presently being used at WSMR: a multiple fiber link from the Master Relay Control Station (Jig-56) to the Telemetry Data Center (TDC), a duplex link between Jig-56 and Launch Complex 37, a simplex link from Chin Site to Jig-56 and a simplex link at Holloman Air Development Center. - The second method is the Digital Microwave Links from a TransportableTelemetry Acquisition and Relay System (TTARS) to Jig-67 and from Jig-67 to Jig-56.