Sensors 2012, 12(4), 5028-5046; doi:10.3390/s120405028
Article

Penalty Dynamic Programming Algorithm for Dim Targets Detection in Sensor Systems

1,2,* email, 1,2email and 2email
Received: 12 March 2012; in revised form: 20 March 2012 / Accepted: 10 April 2012 / Published: 18 April 2012
(This article belongs to the Section Physical Sensors)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: In order to detect and track multiple maneuvering dim targets in sensor systems, an improved dynamic programming track-before-detect algorithm (DP-TBD) called penalty DP-TBD (PDP-TBD) is proposed. The performances of tracking techniques are used as a feedback to the detection part. The feedback is constructed by a penalty term in the merit function, and the penalty term is a function of the possible target state estimation, which can be obtained by the tracking methods. With this feedback, the algorithm combines traditional tracking techniques with DP-TBD and it can be applied to simultaneously detect and track maneuvering dim targets. Meanwhile, a reasonable constraint that a sensor measurement can originate from one target or clutter is proposed to minimize track separation. Thus, the algorithm can be used in the multi-target situation with unknown target numbers. The efficiency and advantages of PDP-TBD compared with two existing methods are demonstrated by several simulations.
Keywords: track-before-detect; sensor systems; signal-to-noise-ratio; dynamic programming; maneuvering; multi-target tracking; feedback
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MDPI and ACS Style

Huang, D.; Xue, A.; Guo, Y. Penalty Dynamic Programming Algorithm for Dim Targets Detection in Sensor Systems. Sensors 2012, 12, 5028-5046.

AMA Style

Huang D, Xue A, Guo Y. Penalty Dynamic Programming Algorithm for Dim Targets Detection in Sensor Systems. Sensors. 2012; 12(4):5028-5046.

Chicago/Turabian Style

Huang, Dayu; Xue, Anke; Guo, Yunfei. 2012. "Penalty Dynamic Programming Algorithm for Dim Targets Detection in Sensor Systems." Sensors 12, no. 4: 5028-5046.

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