TY - GEN
T1 - High-resolution 2-D imaging using ultra-wideband MIMO sonar
AU - Liu, Xiong Hou
AU - Sun, Chao
AU - Zhuo, Jie
AU - Liu, Zong Wei
AU - Xiang, Long Feng
PY - 2013
Y1 - 2013
N2 - An ultra-wideband (UWB) imaging system can provide better cross-range resolution by using large-bandwidth waveforms. Nevertheless, the conventional sonar imaging system can hardly emit and process UWB waveforms directly due to limited system bandwidth. To solve the problem, a 2-D imaging approach based on an UWB multiple-input multiple-output (UWB-MIMO) sonar is proposed. The UWB-MIMO sonar is composed of multi transmitting sensors and a receiving rectangular array. At the transmitting end, a group of OFDM-LFM pulses are emitted simultaneously via multi transmitting sensors. At the receiving end, via matched filtering, the echo components corresponding to each LFM pulse are picked out, and all of them are further synthesized into UWB signals. Therefore, the transmission and processing of a single UWB pulse is replaced by the transmission and processing of a group of OFDM-LFM pluses. As a result, with the adoption of the UWB-MIMO sonar, UWB signals are synthesized during a single pulse illumination and better cross-range resolution is obtained.
AB - An ultra-wideband (UWB) imaging system can provide better cross-range resolution by using large-bandwidth waveforms. Nevertheless, the conventional sonar imaging system can hardly emit and process UWB waveforms directly due to limited system bandwidth. To solve the problem, a 2-D imaging approach based on an UWB multiple-input multiple-output (UWB-MIMO) sonar is proposed. The UWB-MIMO sonar is composed of multi transmitting sensors and a receiving rectangular array. At the transmitting end, a group of OFDM-LFM pulses are emitted simultaneously via multi transmitting sensors. At the receiving end, via matched filtering, the echo components corresponding to each LFM pulse are picked out, and all of them are further synthesized into UWB signals. Therefore, the transmission and processing of a single UWB pulse is replaced by the transmission and processing of a group of OFDM-LFM pluses. As a result, with the adoption of the UWB-MIMO sonar, UWB signals are synthesized during a single pulse illumination and better cross-range resolution is obtained.
KW - 2-D imaging
KW - High resolution
KW - Multiple-input multiple-output (MIMO) sonar
KW - Sonar imaging
KW - Ultra-wideband (UWB)
UR - http://www.scopus.com/inward/record.url?scp=84892558860&partnerID=8YFLogxK
U2 - 10.1109/ICSPCC.2013.6664125
DO - 10.1109/ICSPCC.2013.6664125
M3 - 会议稿件
AN - SCOPUS:84892558860
SN - 9781479910274
T3 - 2013 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2013
BT - 2013 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2013
T2 - 2013 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2013
Y2 - 5 August 2013 through 8 August 2013
ER -