N-Shift ZCZ Pilot Sequence Design for High Accuracy Navigation Based on Broadband Air-to-Ground Communication System

Chao ZHANG  Keke PANG  Lu MA  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E98-A    No.11    pp.2270-2273
Publication Date: 2015/11/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E98.A.2270
Type of Manuscript: Special Section LETTER (Special Section on Smart Multimedia & Communication Systems)
broadband A/G communications,  pilot sequence,  zero-correlation zone,  navigation,  CRLB,  co-channel interference,  NS-ZCZ,  

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The pilot symbols in the broadband Air-to-Ground (A/G) communications system, e.g., L-band Digital Aeronautical Communications System (L-DACS1), are expected to be also utilized for navigation. In order to identify the co-channel signals from different Ground Stations (GSs), the N-Shift Zero Correlation Zone (NS-ZCZ) sequences are employed for pilot sequences. The ideal correlation property of the proposed pilot sequence in ZCZ can maintain the signal with less co-channel interference. The simulation confirms that the more co-channel GSs are employed, the higher navigation accuracy can be achieved.