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Remote Sens. 2016, 8(12), 1028; doi:10.3390/rs8121028

Joint Time-Frequency Signal Processing Scheme in Forward Scattering Radar with a Rotational Transmitter

1
Wireless and Photonic Networks Research Centre, Faculty of Engineering, Universiti Putra Malaysia (UPM), 43400 Selangor, Malaysia
2
Faculty of Electrical Engineering, Universiti Teknologi MARA (UiTM), Shah Alam, 40450 Selangor, Malaysia
*
Author to whom correspondence should be addressed.
Academic Editors: Francesco Soldovieri, Raffaele Persico, Xiaofeng Li and Prasad S. Thenkabail
Received: 8 September 2016 / Revised: 2 December 2016 / Accepted: 2 December 2016 / Published: 17 December 2016
(This article belongs to the Special Issue Radar Systems for the Societal Challenges)
View Full-Text   |   Download PDF [4580 KB, uploaded 17 December 2016]   |  

Abstract

This paper explores the concept of a Forward Scattering Radar (FSR) system with a rotational transmitter for target detection and localization. Most of the research and development in FSR used a fixed dedicated transmitter; therefore, the detection of stationary and slow moving target is very difficult. By rotating the transmitter, the received signals at the receiver contain extra information carried by the Doppler due to the relative movement of the transmitter-target-receiver. Hence, rotating the transmitter enhances the detection capability especially for a stationary and slow-moving target. In addition, it increases the flexibility of the transmitter to control the signal direction, which broadens the coverage of FSR networks. In this paper, a novel signal processing for the new mode of FSR system based on the signal’s joint time-frequency is proposed and discussed. Additionally, the concept of the FSR system with the rotational transmitter is analyzed experimentally for the detection and localization of a stationary target, at very low speed and a low profile target crossing the FSR baseline. The system acts as a virtual fencing of a remote sensor for area monitoring. The experimental results show that the proposed mode with the new signal processing scheme can detect a human intruder. The potential applications for this system could be used for security and border surveillance, debris detection on an airport runway, ground aerial monitoring, intruder detection, etc. View Full-Text
Keywords: remote sensors; forward scattering radar; target detection and localization; security and border surveillance remote sensors; forward scattering radar; target detection and localization; security and border surveillance
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Raja Abdullah, R.S.A.; Mohd Ali, A.; Rasid, M.F.A.; Abdul Rashid, N.E.; Ahmad Salah, A.; Munawar, A. Joint Time-Frequency Signal Processing Scheme in Forward Scattering Radar with a Rotational Transmitter. Remote Sens. 2016, 8, 1028.

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