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http://dx.doi.org/10.9766/KIMST.2019.22.3.332

Development of a Digital Receiver for Detecting Radar Signals  

Cha, Minyeon (Electronic Warfare Division, LIG Nex1)
Choi, Hyeokjae (Electronic Warfare Division, LIG Nex1)
Kim, Sunghoon (Electronic Warfare Division, LIG Nex1)
Moon, Byungjin (Electronic Warfare Division, LIG Nex1)
Kim, Jaeyun (Electronic Warfare Division, LIG Nex1)
Lee, Jonghyun (Electronic Warfare Division, LIG Nex1)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.22, no.3, 2019 , pp. 332-340 More about this Journal
Abstract
Electronic warfare systems are needed to be advantageous in the modern war. Many radar threat signals with various frequency spectrums and complicated techniques exist. For detecting the threats, a receiver with wide and narrow-band digital processing is needed. To process a wide-band searching mode, a polyphase filter bank has become the architecture of choice to efficiently detect threats. A polyphase N-path filter aligns the re-sampled time series in each path, and a discrete Fourier transform aligns phase and separates the sub-channel baseband aliases. Multiple threats and CW are detected or rejected when the signals are received in different sub-channels. And also, to process a narrow-band precision mode, a direct down converter is needed to reduce aliasing by using a decimation filter. These digital logics are designed in a FPGA. This paper shows how to design and develop a wide and narrow-band digital receiver that is capable to detect the threats.
Keywords
Digital Receiver; Wide Band; Narrow Band; Radar Pulse; Polyphase Filter Bank;
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  • Reference
1 J. Tsui and J. P. Stephens, Sr., "Digital Microwave Receiver Technology," Transactions Microwave Theory Technology, Vol. 50, pp. 699-705, March. 2002.   DOI
2 Anthony E. Spezio, "Electronic Warfare Systems," 633-664, IEEE Transactions on Microwave Theory and Techniques, Vol. 50, No. 3, March, 2002.   DOI
3 Naval Air Systems Command and Naval Air Warfare Center, "Electronic Warfare And Radar Systems Engineering Handbook," April, 1999.
4 W. A. Mahmoud, A. K. Sharief, and F. D. Umara, "Radar Parameter Generation to Identify the Target," J. Engineering, Vol. 17, No. 1, pp. 173-185, Feb. 2011.
5 Xilinx, "7 Series FPGAs Overview," July, 2013.
6 Fredric J. Harris, Chris Dick, and Michael Rice, "Digital Receivers and Transmitters Using Polyphase Filter Banks for Wireless Communications," IEEE Transactions on Microwave Theory and Techniques, Vol. 51, No. 4, pp. 1395-1412, April, 2003.   DOI
7 Xilinx, "Polyphase Filter Bank Channelizer," March, 2013.
8 John G. Proakis, Dimitris G. Manolakis, "Digital Signal Processing," Prentice Hall, Third Edition, 1996.
9 Joe Gerhardt and Saiyu Ren, "Digital Down Converter Optimization," IEEE 56th International Midwest Symposium on Circuits and Systems, pp. 1015-1018, Augst, 2013.
10 Teledyne Microwave Solutions, "Digitising Receiver, DR068," February, 2016.