THE STUDY OF SPACE COMMUNICATIONS SPREAD SPECTRUM SYSTEMS. PART III: SYNCHRONIZATION OF A FREQUENCY HOPPED, SPREAD SPECTRUM, SPACE COMMUNICATIONS SYSTEM; PART IV: DETECTION OF A SINUSOIDAL SIGNAL WITH A WIDEBAND DISCRETE...

Authors
  1. Simmons, S.J.
  2. McLane, P.J.
  3. Hopkins, W.L.
  4. Beaulieu, N.C.
Corporate Authors
Queen's Univ, Kingston ONT (CAN) Dept of Electrical Engineering;Communications Research Centre, Ottawa ONT (CAN)
Abstract
This part deals with uplink synchronization in a frequency-hopped multiple-access satellite system. Uplink synchronization encompasses the acquisition (and tracking) of parameters required to allow the detection of frequency-hopped user transmissions at a satellite that performs frequency-dehopping and detection processing. Since this synchronization process will require feedback to the user, the issues of downlink format and synchronization need to be addressed, but to a lesser extent. We first define the system under consideration along with the assumptions that are employed. A downlink format is defined, and an associated downlink synchronization procedure is described. Various aspects of uplink synchronization are then outlined, and options for system implementations and strategies are presented. As a baseline, an ideal "simplest possible" system (having lowest synchronization complexity) is then described. TRUNCATED
Report Number
QU,K-DEE-88-3 — Contractor Report (Final)
Date of publication
15 Feb 1988
Number of Pages
212
DSTKIM No
88-04416
CANDIS No
57616
Format(s):
Hardcopy;Originator's fiche received by DSIS

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