A METHOD FOR COMBATING FADING MULTIPATH CONDITIONS IN A DIRECT-SEQUENCE SPREAD-SPECTRUM SYSTEM

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Authors
  1. Venier, G.O.
Corporate Authors
Communications Research Centre, Ottawa ONT (CAN);Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
In the system proposed in the report the despreading correlation is performed at a number of delays and the results are combined to provide the improvement expected from a diversity system under fading multipath conditions. The combining is simplified by the use of differential-phase-shift modulation of the data. An added advantage of the proposed system is that the outputs of the multiple-delay correlator are ideal inputs to a simple but effective code-delay tracking system based on keeping the "centre of gravity" of the values in the correlation window centred in the window.
Report Number
CRC-1414 —
Date of publication
15 Jun 1986
Number of Pages
42
DSTKIM No
87-02327
CANDIS No
51141
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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