Infrared and Laser Engineering, Volume. 49, Issue 4, 0403004(2020)
Study on techniques of anti-aerosol-interference for active optical target-detection device
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Fig. 2. Typical size of particles in atmosphere and aerosol（Unit: μm）
Fig. 3. Diagram of the influence of the aerosol interference on AOTD
Fig. 5. Cross location of transmitting field and receiving field for a single part
Fig. 6. Diagram of the distribution of laser energy in designation field vs reality field
Fig. 7. Diagram of cancellation method for two opposite fields of a whole circle
Table 1. List of methods and effects for anti-aerosol-interference
View tableView in ArticleTable 1. List of methods and effects for anti-aerosol-interference
Types of interference Interference characteristics Interference-weaken methods Effects of anti-interference Explanation Aerosol Extensibility of the scattering zone Settings of cut-off distance, reference view field, cancellation by symmetric view, optical field restraining Eliminated partly Verified not perfectly Penetrability and multi-layers scattering Settings of multi-range gates and multi- thresholds Eliminated partly Verified not perfectly Decrease the width of transmitted pulse Eliminated partly Devices in poor maturity Image characteristics of block or irregular shape of aerosol Image recognition Eliminated partly Devices in poor maturity Aerosol in reality environment Composite with Ka detectors Eliminated effectively Verified Perfectly Head on and trailing attack Composite with IR detectors Passive closing Limited
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Hongguang Ren, Haojun Zhang, Yukai Sun, Yunwen Zhang. Study on techniques of anti-aerosol-interference for active optical target-detection device[J]. Infrared and Laser Engineering, 2020, 49(4): 0403004
Paper Information
Received: Dec. 13, 2019
Accepted: --
Published Online: May. 27, 2020
The Author Email: Zhang Haojun (lyzhanghaojun@163.com)
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