Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/87734
Title: Mismatched filter for transmit waveform with frequency notches
Authors: Liu, Aifei
Lim, Yee Siang
Teh, Kah Chan
Gao, Caicai
Keywords: Transmit Waveform
Mismatched Filter
Issue Date: 2018
Source: Liu, A., Lim, Y. S., Teh, K. C., & Gao, C. (2018). Mismatched filter for transmit waveform with frequency notches. IET Radar, Sonar & Navigation, 12(3), 332-340.
Series/Report no.: IET Radar, Sonar & Navigation
Abstract: In order to reduce radar interference on communication systems within shared bands, the radar transmit waveform forms frequency notches in the shared bands. However, because of the notches, the auto-correlation of the transmit waveform with frequency notches leads to high-range sidelobes. In order to achieve low-range sidelobes, the authors propose a mismatched filter. The mismatched filter for the transmit waveform with frequency notches has the same range sidelobes as the auto-correlation of the transmit waveform without frequency notches at the expense of a signal-to-noise ratio (SNR) loss. Simulation and analysis results demonstrate that the proposed mismatched filter always has low sidelobes at the cost of a SNR loss. In addition, simulation results show that the SNR loss is acceptable even for the deep notches (i.e. 20 dB), when the ratio of the waveform energy in the shared bands to the total waveform energy is moderate (i.e. <;8%). However, the SNR loss increases rapidly with the depth of notches, when the ratio is large.
URI: https://hdl.handle.net/10356/87734
http://hdl.handle.net/10220/45483
ISSN: 1751-8784
DOI: http://dx.doi.org/10.1049/iet-rsn.2017.0350
Rights: © 2017 Institution of Engineering and Technology. This paper was published in IET Radar, Sonar & Navigation and is made available as an electronic reprint (preprint) with permission of Institution of Engineering and Technology. The published version is available at: [http://dx.doi.org/10.1049/iet-rsn.2017.0350]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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