Ranging Property of the Dual-Band Band Limited Signal (DBBLS)

Advances in Electrical and Computer Engineering

关键词: BOC;    GNSS;    navigation;    ranging;    signal processing;    signal sampling;   

DOI  :  10.4316/AECE.2012.03014

来源: DOAJ

【 摘 要 】

The Dual-Band Band Limited Signal (DBBLS) is a signal with its power spectral density consisting of two separate lobes.Signals that can be considered as DBBLS are for example signals with BOC, AltBOC modulation, signals modulated on twoclose carriers and many other signals, which are used in modern satellite navigation systems. This signal advantageis its excellent ranging property. The parted power spectral density enables processing the DBBLS as a single widebandsignal in single-channel receiver or as two narrow band signals in two-channel receiver. The signal processing of theranging signals is based on the calculation of the cross-correlation function, which can be calculated from the signalmeasured by the two-channel receiver by the derived method more efficiently than from the whole signal. The two-channelprocessing has nearly optimal performance, but the hardware and computation complexity is much lower. The developedmethod can by applied, for instance, for the processing of the Galileo E5 signal or pair of the Compass L1 signals.

【 授权许可】

Unknown