A Bistatic Range Sidelobe Suppression Method for Improving Target Detection Performance in an FM-Based PCL System 


Vol. 44,  No. 6, pp. 1128-1139, Jun.  2019
10.7840/kics.2019.44.6.1128


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  Abstract

A PCL is a passive radar that detects and tracks a target using broadcast and communication signals. The direct-path signal received through the line-of-sight path of the broadcasting transmitter and the receiver, and the target signal is received by the reflected signal from the target. The PCL derives a CAF of these signals and estimates time and frequency difference of arrival for the position and velocity estimation. FM radio signal is considered in the PCL due to the convenience of signal collection and the wide coverage caused by the high transmission power of the FM radio transmitter. However, because of the structure of the FM signal, the sidelobes occur in the bistatic range axis in the derived CAF. Such sidelobes are misinterpreted as targets in the detection step and reduce the detection performance of the target. In this paper, we analyze the tendency of sidelobes on the bistatic range axis according to the structure of the FM signal and propose a system to suppress these sidelobes. We show that the proposed system suppresses the sidelobes on the bistatic range axis and also present that the target signal detection performance is improved at the detection stage compared to the existing system.

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  Cite this article

[IEEE Style]

S. Son, G. Park, J. Ahn, K. Song, H. Kim, "A Bistatic Range Sidelobe Suppression Method for Improving Target Detection Performance in an FM-Based PCL System," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 6, pp. 1128-1139, 2019. DOI: 10.7840/kics.2019.44.6.1128.

[ACM Style]

So-Young Son, Geun-Ho Park, Jun-Il Ahn, Kyu-Ha Song, and Hyoung-Nam Kim. 2019. A Bistatic Range Sidelobe Suppression Method for Improving Target Detection Performance in an FM-Based PCL System. The Journal of Korean Institute of Communications and Information Sciences, 44, 6, (2019), 1128-1139. DOI: 10.7840/kics.2019.44.6.1128.

[KICS Style]

So-Young Son, Geun-Ho Park, Jun-Il Ahn, Kyu-Ha Song, Hyoung-Nam Kim, "A Bistatic Range Sidelobe Suppression Method for Improving Target Detection Performance in an FM-Based PCL System," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 6, pp. 1128-1139, 6. 2019. (https://doi.org/10.7840/kics.2019.44.6.1128)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880