High speed target tracking radar system based on the use of BPSK signal and digital Doppler shift compensation
Abstract
Introduction/purpose: This paper presents a model of a high speed target radar tracking system that is much simpler than the existing ones. The Doppler shift is compensated before signal compression, simultaneously with the modification of the clock signal in the compression filter. This is possible thanks to the development of FPGA technology. The most important for this application are very fast clock control units which enable operation with different frequency references up to 1 GHz with an accuracy far below 1 Hz.
Methods: In this paper, the methodology of mathematical modeling and simulation is used.
Results:The results of the analysis of the most important effects in radars caused by high-speed targets are presented and discussed - target migration through resolution cells and compression filter response distortion due to high target acceleration.
Conclusion: Thanks to flexible RF and signal processing hardware, complex radar processing procedures are not required. The sensitivity of the BPSK signal to the Doppler shift (which is usually considered a disadvantage) can be used to reject targets at a slightly different rate. This system can be used in space debris tracking, airspace target tracking, car driving, etc.
References
Addabbo, P., Orlando, D. & Ricci, G. 2019. Adaptive Radar Detection of Dim Moving Targets in Presence of Range Migration. IEEE Signal Processing Letters, 26(10), pp.1461-1465. Available at: https://doi.org/10.1109/LSP.2019.2936650
Chen, J., Jin, K., Yu, S., Lai, T.& Zhao, Y. 2019. Radar Coherent Detection for Maneuvering Target Based on Product-Scaled Integrated Cubic Phase Function. International Journal of Antennas and Propagation, 2019(art.ID:8691903). Available at: https://doi.org/10.1155/2019/8691903
Golubičić, Z., Simić, S. & Zejak, A.J. 2013. Design and FPGA implementation of digital pulse compression for band-pass radar signals. Journal of Electrical Engineering, 64(3), pp.191-195. Available at: https://doi.org/10.2478/jee-2013-0028
Jin, K., Lai, T., Wang, Y., Li, G. & Zhao, Y. 2019. Coherent Integration for Radar High-Speed Maneuvering Target Based on Frequency-Domain Second-Order Phase Difference. MDPI electronics, 8(3), art.ID:287. Available at: https://doi.org/10.3390/electronics8030287
Klinkrad, H. 2006. The Current Space Debris Environment and its Sources. In: Space Debris. Springer Praxis Books.Berlin, Heidelberg:Springer. Available at: https://doi.org/10.1007/3-540-37674-7_2. ISBN: 978-3-540-37674-3.
Li, J., Liu, H. & He, Z-S. 2009. A practical method for range migration compensation in chirp radar. Progress In Electromagnetics Research M, 7, pp.15-28. Available at: https://doi.org/10.2528/PIERM09022302
Losacco, M. & Schirru, L. 2019. Orbit Determination of Resident Space Objects Using the P-Band Mono-Beam Receiver of the Sardinia Radio Telescope. Applied Science, 9(19), art.ID:4092. Available at: https://doi.org/10.3390/app9194092
Murray, J., Miller, R., Matney, M. & Kennedy, T. 2019. Orbital Debris Radar Measurements from the Haystack Ultra-wideband Satellite Imaging Radar (HUSIR): 2014-2017. In: International Orbital Debris Conference (IOC), Sugar Land, TX, Document ID:20190033902, Patent Number:IOC6133, December 9-12 [online]. Availble at: https://ntrs.nasa.gov/citations/20190033902 [Accessed: 20 February 2022].
-NASA-Handbook 8719.14. 2008. Handbookfor limiting orbital debris. Washington, DC: NASA-Handbook [online]. Availble at: https://explorers.larc.nasa.gov/APMIDEX2016/MO/pdf_files/NHBK871914.pdf[Accessed: 20 February 2022].
Simić, S., Zejak, A.J .& Golubičić, Z. 2013. Hardware implementation of DIRLS mismatched compressor applied to a pulse-Doppler radar system. Microprocessors and Microsystems, 37(4-5), pp.381-393. Available at: https://doi.org/10.1016/J.MICPRO.2013.04.001
Tang, S., Guo, P., Zhang, L. & Lin, C. 2019. Modelling and Precise Processing for Spaceborne Transmitter/Missile-Borne Receiver SAR Signals. Remote Sensing, 11(3), art.ID:346. Available at: https://doi.org/10.3390/rs11030346
Yang, S., Li, Y., Zhang, K. & Liu, J. 2017. A Signal Processing Algorithm Based on 2D Matched Filtering for SSAR. Mathematical Problems in Engineering, 2017(art.ID:4047983). Available at: https://doi.org/10.1155/2017/4047983
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