SSB-Based Signal Processing for Passive Radar Using a 5G Network

Abstract

This paper presents an alternative processing chain for the passive radar using fifth-generation (5G) standard technology for broadband cellular networks as illuminators of opportunity. The proposition is to use a 5G synchronization signal block's (SSB) periodically transmitted modulated pulse in 5G-based passive coherent location (PCL) system processing. Although the SSB periodicity limits the velocity ambiguity, the paper describes a solution to tackle this problem in a single target scenario. The method is advantageous when there is a lack of transmission in the telecommunication channel, and the 5G SSB is the only existing signal. The paper proposes a signal processing pipeline for 5G-based PCL that is inspired by passive radars using non-cooperative pulse radar as an illumination source. The method has been validated using simulated and real-life 5G data measurements. The results presented in the paper show the possibility of detecting a moving target with a lack of data transmission in the 5G network, using only the SSB when the classical passive radar signal processing fails. The presented results prove the possibility for a significant increase of 5G network-based PCL utilization in short-range applications.

Rotating Target Detection Using Commercial 5G Signal

“…Księ żyk et al provided a detailed introduction to the basic principles of 5G sensing and conducted concept validation, explaining the feasibility and limitations of using 5G signals for passive radar and providing guidance for further research on passive radar based on 5G [7]. Abratkiewicz et al also studied the use of Synchronization Signaling Block (SSB) signals for target detection in addition to classical passive radar signal processing methods, and validated this method with cars as experimental targets, providing a new approach for target detection [8].…”

“…Additionally, the bandwidth and carrier frequency of communication signals are gradually increasing, which will improve the detection performance of passive radar, indicating the direction for its development. The rapidly developing 5G is also being applied to passive radar [6][7][8].…”

A Coherent Integration Method for Moving Target Detection in Frequency Agile Signal-Based Passive Bistatic Radar

“…Passive bistatic radar (PBR) exploits non-cooperative illuminators of opportunity (IOs) to detect moving targets and has received increasing attention in recent years [1][2][3]. Since the absence of dedicated transmitter equipment, PBR offers many advantages over conventional monostatic active radars, such as contained cost and low maintenance, covert detection, and anti-jamming [4][5][6][7]. With tremendous advances in hardware and signal-processing technology, PBRs are extensively deployed for air traffic control, coastal/maritime protection, and terrestrial vehicle surveillance [8,9].…”