DSSS detection and direction finding methods for a DSP-based small aperture DF system

This dissertation discusses an investigation into methods for detection and direction finding of direct-sequence spread-spectrum signals (DSSS), appropriate for a particular DSP-based direction finding platform. Relevant details on DSSS and radio direction finding are presented. These are used as the theorectical basis for the developemtn of a software-bases simulator fo the direction finding platform, which in turn is used to develop and investigate various algorithms. The algorithms included use a least-squares model-based approach. The results of experiments run on simulated data indicate that this approach has merit for the automated detection and direction finding of DSSS signals. the least-squares algorithm applied to a single capture of power-spectrum data is shown to perform comparably with human experts.

Grantor dc:publisher.institution

Department of Electrical Engineering

Year dc:date.issued

2005

Author dc:creator

• Durrett, David

Advisor dc:contributor.advisor

• Wilkinson, Andrew John

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/5276

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/5276