Title :
Improved link establishment for HF modems
Author_Institution :
Oneac Corp., Libertyville, IL
Abstract :
Single tone, low baud rate modems are used in communications over shortwave radio channels. A modified Goertzel algorithm that rapidly acquires signal parameters under adverse conditions is used. By applying frame excision, a single tone modem that is more tolerant to intersymbol interference and frame synchronization errors may be designed.
Keywords :
intersymbol interference; modems; synchronisation; wireless channels; HF modems; frame synchronization errors; high frequency modems; intersymbol interference; modified Goertzel algorithm; shortwave radio channels; signal parameters; single tone modem; Amplitude estimation; Bit rate; Differential quadrature phase shift keying; Frequency estimation; Frequency shift keying; Frequency synchronization; Hafnium; Intersymbol interference; Modems; Phase estimation;
Conference_Titel :
Electro/Information Technology Conference, 2004. EIT 2004. IEEE
Conference_Location :
Milwaukee, WI
Print_ISBN :
978-0-7803-8750-8
Electronic_ISBN :
978-0-7803-8751-5
DOI :
10.1109/EIT.2004.4569359
