Title :
Hop-timing estimation for FH signals using a coarsely channelized receiver
Author :
Aydin, L. ; Polydoros, A.
Author_Institution :
Commun. Sci. Inst., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
New hop-timing epoch estimation schemes for random frequency-hopping signals are considered which employ a coarsely channelized pre-processor in order to suppress the frequency and phase dependence of the hopping signal. Linear and nonlinear combination of channel outputs are explored and compared. Performance evaluation via extensive computer simulations, along with analytical lower-bounds supporting them are presented. Comparisons with existing optimal and sub-optimal systems are made
Keywords :
frequency hop communication; interference suppression; parameter estimation; radiofrequency interference; random processes; signal processing; FH signals; channel outputs; coarsely channelized pre-processor; coarsely channelized receiver; epoch estimation; frequency dependence; hop-timing estimation; linear combination; lower-bounds; nonlinear combination; performance evaluation; phase dependence; random frequency-hopping signals; AWGN; Band pass filters; Bandwidth; Filter bank; Frequency estimation; Frequency shift keying; Low pass filters; Phase estimation; Spread spectrum communication; Timing;
Conference_Titel :
Military Communications Conference, 1994. MILCOM '94. Conference Record, 1994 IEEE
Conference_Location :
Fort Monmouth, NJ
Print_ISBN :
0-7803-1828-5
DOI :
10.1109/MILCOM.1994.473866
