Localization deception performance of FDA signals under passive bi-satellite reconnaissance

Autor: Shunsheng Zhang, Wen-Qin Wang, Haoliang Guan
Rok vydání: 2021
Předmět:
Zdroj: Science China Information Sciences. 64
ISSN: 1869-1919
1674-733X
DOI: 10.1007/s11432-019-2773-1
Popis: Time difference of arrival (TDOA) and frequency difference of arrival (FDOA) are widely adopted for passive bi-satellite positioning system (BPS) localization. Although TDOA/FDOA localization counter-measures have received much attention, different from existing passive localization countermeasure techniques which mainly concentrate on designing spoofing jammers. This paper proposes that the application of frequency diverse array (FDA) antenna has more advantages in achieving localization deception compared with phased array (PA) antenna. FDA uses a small frequency offset across its array elements, which makes periodical time-variance beampattern even at a fixed angle and distance. Followed by this new method, closed-form expressions for the geometric dilution of precision (GDOP) and Cramer-Rao bounds (CRB) are derived to quantitatively evaluate the localization deception performance of the FDA transmitted signals. Both numerical analysis and simulation results show that FDA indeed provides robust localization deception performance than conventional phased-array under passive bi-satellite reconnaissance.
Databáze: OpenAIRE
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