Title :
Adjacent-channel interference compensation efficiency for correlation technique
Author :
Bondarenko, Valery N. ; Krasnov, Timur V.
Author_Institution :
Eng. Phys. & Radioelectron. Inst., Siberian Fed. Univ., Krasnoyarsk, Russia
Abstract :
Medium waveband navigation systems are considered. Systems using code-division multiplexing have intrasystem interference level determined by cross-correlation sidelobe. Interference immunity of spread spectrum signal with minimum shift keying correlation receiver is improved with powerful adjacent-channel interference compensator providing high accuracy interference copy forming. Correlation receiver equipped with compensator modeling denotes that designed compensator provides high signal dynamic range around 80 dB and higher in terms of Doppler frequency shift equals from 0 to 0.2 Hz and 14-bit analog-to-digital converting with limited dynamic range.
Keywords :
Doppler shift; analogue-digital conversion; radiofrequency interference; radionavigation; spread spectrum communication; Doppler frequency shift; adjacent-channel interference compensation efficiency; analog-to-digital convertion; code-division multiplexing; correlation technique; cross-correlation sidelobe; frequency 0 Hz to 0.2 Hz; intrasystem interference level; medium waveband navigation systems; minimum shift keying correlation receiver; spread spectrum signal; word length 4 bit; Correlation; Delay; Dynamic range; Interference; Random sequences; Receivers; Signal to noise ratio; Interference suppression; Minimum-shift keying; Multiple access interference; Radio navigation;
Conference_Titel :
Control and Communications (SIBCON), 2011 International Siberian Conference on
Conference_Location :
Krasnoyarsk
Print_ISBN :
978-1-4577-1069-8
DOI :
10.1109/SIBCON.2011.6072630
