• DOUBLE DENSITY ANALOG MAGNETIC RECORDING

      Law, Eugene L.; Pacific Missile Test Center (International Foundation for Telemetering, 1986-10)
      This paper discusses measured performance of double density recording. Tests were conducted using different recorders, playback machines, and magnetic tapes. The main topics discussed are slot signal-to-noise ratio (SNR) and high density digital bit error rate (BER).
    • THE PACIFIC MISSILE TEST CENTER’S AIRBORNE TELEMETRY COLLECTION CAPABILITY

      Engel, Jim; Pacific Missile Test Center (International Foundation for Telemetering, 1986-10)
      Providing realtime telemetry collection to the Pacific Missile Test Center’s (PMTC) range users presents some unique problems. Operations are staged in an open sea environment with participants often at very low altitude and/or far from land based collection instrumentation. This paper will present an overview of the airborne telemetry collection instrumentation that has been developed at PMTC to overcome these problems and will discuss some of the operational problems encountered in its use.
    • A REVIEW OF MULTIPLE BEAM ANTENNA ARRAY TRADEOFFS

      Hansen, R. C.; Pacific Missile Test Center (International Foundation for Telemetering, 1986-10)
      Telemetry instrumentation antennas often require several beams to allow simultaneous tracking of several targets. These multiple beams can be provided several ways, including multiple beam antennas and phased arrays. A brief review of the tradeoffs involved in implementing multiple beams with phased arrays is given. Planar arrays, which may be combined to provide wide angular coverage, include a corporate feed giving multiple independent beams, a distributed configuration with independent beams, the Butler beamformer, and the Gent-Rotman beamformer. Conformal implementations include cylindrical and conical arrays, and the spherical dome lens.
    • SYSTEMS AND METHODS TO REDUCE DATA PROCESSING TURNAROUND TIME

      Crolene, Robert; Pacific Missile Test Center (International Foundation for Telemetering, 1986-10)
      Weapon system complexity and its data expression have become a central issue for the Range Directorate at the Pacific Missile Test Center (PMTC). Increasing data complexity and data product turnaround requirements have created a technological push-pull on traditional data processing methods. Several possible responses are discussed which include distributed front and back end processing relative to the large mainframes, and increasing use of artificial intelligence techniques in the data reduction area. These methods are going through progressive steps of implementation at PMTC with some notable success.
    • TELEMETRY PROCESSING SYSTEM FOR THE PACIFIC MISSILE TEST CENTER

      Knight, Paul; Pacific Missile Test Center (International Foundation for Telemetering, 1986-10)
      Since the late 1970’s the telemetry processing and display requirements of the Pacific Missile Test Center have been handled by the Telemetry Data Handling System. With the increasing use of embedded computers on test vehicles and the requirements to process and display larger volumes of data at higher data rates, many programs will soon exceed the capabilities of the Telemetry Data Handling System. The Telemetry Processing System is a replacement of the Telemetry Data Handling System that will be brought online in the Pacific Missile Test Center’s Telemetry Data Center in 1990. The Telemetry Processing System is required to meet the processing and display requirements of the Pacific Missile Test Center’s range users for the next decade. A discussion of the functional implementation and performance requirements of Telemetry Processing System is presented.
    • TEST AND EVALUATION RESULTS FOR THE AIRBORNE INSTRUMENTATION STATION TELEMETRY SYSTEM

      Peterson, Ron; Pacific Missile Test Center (International Foundation for Telemetering, 1986-10)
      An airborne multibeam telemetry system has been acquired and accepted by the Pacific Missile Test Center. Major system capabilities are to receive, record, and retransmit telemetry data from five tracked objects in widely dispersed directions within the twodimensional planer array field of view. A system description, performance characteristics, test methods, and test results will be presented.