Journal
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
Volume 19, Issue -, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LGRS.2021.3070407
Keywords
Radar imaging; Radar antennas; Signal processing; Loading; Impedance; Antennas; Signal to noise ratio; Deconvolution technique; impulse UWB through-wall radar; planar bow-tie antenna; signal ringing
Categories
Funding
- National Key Research and Development Program of China [2018YFC0810200]
- National Natural Science Foundation of China [61901531]
Ask authors/readers for more resources
This letter studies a deconvolution-technique-based signal processing approach to suppress the ringing phenomenon when the planar bow-tie antenna is used to radiate ultra-wideband signals. The proposed approach improves the signal-to-noise ratio and reduces energy loss without using any hardware loadings on the antenna.
Due to the requirements of portability and omni-directivity, the planar bow-tie antenna is widely used in impulse through-wall radar (ITWR). When the planar bow-tie antenna is used to radiate the ultrawide bandwidth (UWB) signal, the ringing phenomenon of the transmitted signal would be serious, which can damage the quality of radar imaging. The previous solutions for this problem are the usage of various hardware loadings; however, those loadings could cause signal energy loss and reduce the signal gain. Alternatively, this letter studies a deconvolution-technique-based signal processing approach to suppress the signal ringing. Because the proposed approach does not require any hardware loadings on the antenna, it can help improve the signal-to-noise ratio (SNR) and significantly reduce the energy loss of signal. The effectivity of this signal processing approach is verified by the radar detecting experiments.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available