Active vehicle protection using angle and time-to-go information from high-resolution infrared sensors

Title
Active vehicle protection using angle and time-to-go information from high-resolution infrared sensors
Author
송택렬
Keywords
augmented time-to-go measurement; active protection system; extended Kalman filter; Newton method; passive ranging; radar-infrared fusion; OPTICAL-FLOW; PASSIVE SENSORS; TRACKING; TARGET
Issue Date
2015-05
Publisher
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
Citation
OPTICAL ENGINEERING, v. 54, NO 5, Page. 1-10
Abstract
An algorithm for an active protection system with two or more passive infrared sensors based on the principle of triangulation and an extended measurement vector consisting of time-to-go (TTG) estimation is proposed to address high-speed short-range threats. The proposed algorithm exploits the full potential of passive sensors enabling the use of target irradiance in a manner to estimate the TTG along with angle information. The approach here uses target irradiance measured at successive scans to initialize a fixed interval iteration scheme for estimating the TTG. The Newton's method is used for estimating the TTG, the estimate is then added to the measurement vector and position estimation is performed using an extended Kalman filter. Computer simulations demonstrate the resulting improvement in estimation and feasibility for real-time application of the proposed algorithm. (C) The Authors.
URI
https://www.spiedigitallibrary.org/journals/Optical-Engineering/volume-54/issue-05/053110/Active-vehicle-protection-using-angle-and-time-to-go-information/10.1117/1.OE.54.5.053110.full?SSO=1http://hdl.handle.net/20.500.11754/33867
ISSN
0091-3286; 1560-2303
DOI
10.1117/1.OE.54.5.053110
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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