Title :
Frequency hopping with multih CPM (MIL-STD-188-181B)
Author :
Voglewede, Paul E.
Author_Institution :
RF Commun. Div., Harris Corp., Rochester, NY, USA
Abstract :
Multi-h CPM waveforms have been primarily used in satellite communications (MIL-STD-188-181B). In recent years, multih CPM has been getting more attention for use in a line of site (LOS) mode of operation. To improve the effectiveness of multi-h CPM waveforms in LOS, frequency hopping can be added to provide electronic counter-countermeasure capability for hostile environments and frequency diversity to combat multipath. This paper discusses some of the design aspects and a possible solution for a coherent frequency hopping multi-h CPM waveform that does not use pilot symbols. The performance of the hopping CPM 16k bps is expected to be approximately 6 dB better than fixed frequency 16 k FSK. The price for the improved capability is approximately twice the loading of existing multih CPM demodulation with a signal bandwidth of 35 kHz.
Keywords :
continuous phase modulation; demodulation; electronic countermeasures; frequency hop communication; satellite communication; 16 Kbit/s; 35 KHz; CPM demodulation; coherent frequency hopping; electronic counter-countermeasure capability; line of site; multi-h CPM waveform; multipath frequency diversity; satellite communication; signal bandwidth; Bandwidth; Counting circuits; Demodulation; Electronic countermeasures; Electronic warfare; Frequency diversity; Frequency shift keying; Modulation; Satellite communication; Spread spectrum communication;
Conference_Titel :
Military Communications Conference, 2003. MILCOM '03. 2003 IEEE
Print_ISBN :
0-7803-8140-8
DOI :
10.1109/MILCOM.2003.1290328
