الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
In frequency hopping (FH) spread spectrum system, synchronization of the frequency synthesizer at the receiver side with that at the transmitter side can be accomplished by preambles or unmodulated tone patterns appended to the beginning of the message transmissions. Pattern detection at the receiver may be implemented either by parallel (matched filter) or serial search system. Parallel search provides fast acquisition on the expense of circuit complexity. On the other hand, serial search provides better performance on the expense of long acquisition time. In this thesis anew antijam serial search acquisition scheme is introduced. An analytical model for the probabilities of correct acquisition and false alarm is also established. Aflow graph model for the acquisition time is also introduced and analyzed. The performance of the new scheme will be evaluated for two types of jammers