Accession Number:

ADA272912

Title:

Downlink Acquisition and Tracking Procedures for the ASCAMP Satellite Communications Terminal

Descriptive Note:

Technical rept.,

Corporate Author:

MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s):

Report Date:

1993-09-14

Pagination or Media Count:

55.0

Abstract:

The advanced single-channel antijam man portable ASCAMP terminal was developed at MIT Uncoin Laboratory as a proof of concept for the Armys SCAMP terminal. The ASCAMP terminal is a 30-lb, extremely high frequency EHF satellite communications terminal capable of operating from 75 to 2,400 bps with low inclination, geosynchronous FLTSAT EHF package and Milstar satellites. The terminal was designed to be carried, set up, and operated by a single user. In many instances the control algorithms have been designed to compensate for simplifications made in the hardware to keep the terminals size, weight, and power to a minimum. This report describes the procedures implemented in the ASCAMP terminal to locate the satellite and synchronize with its downlink. It contains descriptions of the timing and pointing requirements, the procedures for acquisition and tracking, and the measured performance. Milstar acquisition, Downlink acquisition, Satellite acquisition, Time tracking, Spatial tracking, Satellite tracking, Angle tracking, Position tracking, ASCAMP, PIN Estimation, SNR Estimation, One-bit demodulation.

Subject Categories:

  • Countermeasures
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE