A novel algorithm for frequency de-hopping in radars using agile bandpass sampling for electonic support measurement

Muhammad Jawad () and Muhammad Zeeshan ()
Additional contact information
Muhammad Jawad: National University of Sciences and Technology
Muhammad Zeeshan: National University of Sciences and Technology

Telecommunication Systems: Modelling, Analysis, Design and Management, 2020, vol. 73, issue 3, No 8, 443-454

Abstract: Abstract Modern radars use frequency hopping as an effective anti-jamming technique by changing their frequencies from pulse-to-pulse and thus making their blind estimation a challenging task for Electronic Warfare (EW) receivers. In this paper, a novel frequency de-hopping algorithm is proposed using agile band pass sampling by directly sampling the intercepted RF signal using three selected sampling frequencies. Under-sampling creates image frequencies around the radar carrier at integral multiples of the sampling frequencies. The proposed algorithm exploits this effect by searching for the unique/common frequency among three frequency image vectors using iterative mathematical modeling. It is shown that the proposed algorithm achieves comparably better estimation performance to the already existing single sampling chain heterodyne receivers at advantage of direct RF sampling using low speed ADCs. The achieved estimation performance is closer to CRLB. The effectiveness of frequency resolution and noise tolerance level, selection criteria of sampling frequencies, estimation time complexity of de-hopping and operational SNR range of the proposed algorithm are discussed to elaborate its strengths and limitations in EW applications.

Keywords: Bandpass sampling; Frequency estimation; ESM; Frequency hopping; Anti-jamming (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://link.springer.com/10.1007/s11235-019-00618-z Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:telsys:v:73:y:2020:i:3:d:10.1007_s11235-019-00618-z

Ordering information: This journal article can be ordered from
http://www.springer.com/journal/11235

DOI: 10.1007/s11235-019-00618-z

Access Statistics for this article

Telecommunication Systems: Modelling, Analysis, Design and Management is currently edited by Muhammad Khan

More articles in Telecommunication Systems: Modelling, Analysis, Design and Management from Springer
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().