2024-03-28T23:02:21Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/497422022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Time-Reversal MUSIC Imaging with Time-Domain Gating TechniqueChoi, Heedong1000070125293Ogawa, YasutakaNishmura, Toshihiko1000010271636Ohgane, Takeoopen accessCopyright © 2012 The Institute of Electronics, Information and Communication Engineerstime-reversal (TR) techniqueTR-MUSIC imagingultra wideband (UWB)gating technique547A time-reversal (TR) approach with multiple signal classification (MUSIC) provides super-resolution for detection and localization using multistatic data collected from an array antenna system. The theory of TR-MUSIC assumes that the number of antenna elements is greater than that of scatterers (targets). Furthermore, it requires many sets of frequency-domain data (snapshots) in seriously noisy environments. Unfortunately, these conditions are not practical for real environments due to the restriction of a reasonable antenna structure as well as limited measurement time. We propose an approach that treats both noise reduction and relaxation of the transceiver restriction by using a time-domain gating technique accompanied with the Fourier transform before applying the TR-MUSIC imaging algorithm. Instead of utilizing the conventional multistatic data matrix (MDM), we employ a modified MDM obtained from the gating technique. The resulting imaging functions yield more reliable images with only a few snapshots regardless of the limitation of the antenna arrays.Institute of Electronics, Information and Communication Engineers2012-07-01engjournal articleVoRhttp://hdl.handle.net/2115/49742http://search.ieice.org/https://doi.org/10.1587/transcom.E95.B.23770916-8516IEICE Transactions on CommunicationsE95723772385https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/49742/1/ToCE95B-7_2377-2385.pdfapplication/pdf3.67 MB2012-07-01