Abstract
This paper proposes a mainlobe interference suppression method in distributed array radar (DAR) based on stepped frequency synthetic wideband signal. Due to the equivalent large aperture of DAR, it is possible to cancel the mainlobe interference without target signal suppression. The applying of stepped frequency synthetic wideband signal can avoid the different time delays arriving at each array compared with the traditional instantaneous wideband Chirp (linear frequency modulation) signal. Moreover, it can reduce the computational complexity. This method employs the narrowband adaptive processing to each sub-pulse of the stepped frequency signal, and then synthesizes the high resolution range profile (HRRP). As a result, mainlobe interference suppression under wideband signal is accomplished. Mainlobe interference suppression experiment is carried out by using an S-band experimental radar system, an S-band noise jammer and a target simulator. The measured data is processed employing the proposed method, and the result verifies the effectiveness of this algorithm.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Vendik, O.G., Kozlov, D.S.: Phased antenna array with a sidelobe cancellation for suppression of jamming. IEEE Antennas Wirel. Propag. Lett. 11, 648–650 (2012)
Qian, J., He, Z.: Mainlobe interference suppression with eigenprojection algorithm and similarity constraints. Electron. Lett. 52(3), 228–230 (2016)
Yu, K.B.: Adaptive digital subarray beamforming and deterministic sum and difference beamforming with jamming cancellation and monopulse ratio preservation. US Patent, 6661366B2, 9 December 2003
Yang, X., Yin, P., Zeng, T., Sarkar, T.K.: Applying auxiliary array to suppress mainlobe interference for ground-based radar. IEEE Antennas Wirel. Propag. Lett. 12, 433–436 (2013)
Zhang, H., Luo, J., Chen, X., Liu, Q., Zeng, T.: Fresnel based frequency domain adaptive beamforming for large aperture distributed array radar. In: IEEE International Conference on Signal Processing, pp. 1–5 (2016)
Santosh, S., Sahu, O.P., Aggarwal, M.: Different wideband direction of arrival (DOA) estimation methods: an overview. In: Proceedings of 8th WSEAS International Conference on Electronics, Hardware, Wireless and Optical Communication, pp. 159–167. World Scientific and Engineering Academy and Society (WSEAS) (2009)
Hung, H., Kaveh, M.: Focussing matrices for coherent signal-subspace processing. IEEE Trans. Acoust. Speech Sig. Process. 36(8), 1272–1281 (1988)
Zeng, T., Yin, P., Liu, Q.: Wideband distributed coherent aperture radar based on stepped frequency signal: theory and experimental results. IET Radar Sonar Navig. 10(4), 672–688 (2016)
Acknowledgment
This work was supported by the Chang Jiang Scholars Programme under Grants T2012122, 111 Project of China under Grants B14010. The authors would like to thank Prof. Teng Long, Beijing Institute of Technology, China, for helpful comments and suggestions.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
About this paper
Cite this paper
Luo, J., Zhang, H., Song, Y. (2018). Adaptive Mainlobe Interference Suppression in Sparse Distributed Array Radar Based on Synthetic Wideband Signal. In: Gu, X., Liu, G., Li, B. (eds) Machine Learning and Intelligent Communications. MLICOM 2017. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 227. Springer, Cham. https://doi.org/10.1007/978-3-319-73447-7_22
Download citation
DOI: https://doi.org/10.1007/978-3-319-73447-7_22
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-73446-0
Online ISBN: 978-3-319-73447-7
eBook Packages: Computer ScienceComputer Science (R0)