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Cao C, Su X, Liu Y, Zeng X, Feng Z, Shen J, Wang T, Yan X. Compensation for the Decoherence Effect in Heterodyne Detection of Rough Targets and a Target Vibration Characteristic Measurement System. Sci Rep 2020; 10:6077. [PMID: 32269327 PMCID: PMC7142099 DOI: 10.1038/s41598-020-62966-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 03/23/2020] [Indexed: 11/21/2022] Open
Abstract
In practical applications of signal detection, the roughness of a target surface significantly affects detection efficiency. In this paper, we propose a signal processing method that improves the sensitivity of a detection system by up to 100 times. In experiments, the target vibration measurement system successfully captured an automotive vibration power spectrum using the proposed signal processing method. This technology opens a new avenue for development in the field of rough surface target detection and recognition.
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Affiliation(s)
- Changqing Cao
- School of Physics and Optoelectronic Engineering, Xidian University, 2 South Taibai Road, Xian, 710071, China
| | - Xiyuan Su
- School of Physics and Optoelectronic Engineering, Xidian University, 2 South Taibai Road, Xian, 710071, China.
| | - Yutao Liu
- School of Physics and Optoelectronic Engineering, Xidian University, 2 South Taibai Road, Xian, 710071, China
| | - Xiaodong Zeng
- School of Physics and Optoelectronic Engineering, Xidian University, 2 South Taibai Road, Xian, 710071, China
| | - Zhejun Feng
- School of Physics and Optoelectronic Engineering, Xidian University, 2 South Taibai Road, Xian, 710071, China
| | - Jingshi Shen
- Shandong Institute of Space Electronic Technology, Yantai, 264670, China
| | - Ting Wang
- School of Physics and Optoelectronic Engineering, Xidian University, 2 South Taibai Road, Xian, 710071, China
| | - Xu Yan
- School of Physics and Optoelectronic Engineering, Xidian University, 2 South Taibai Road, Xian, 710071, China
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