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Ballistic Target PHD Filter Based on Infrared Focal Plane Ambiguous Observation

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  • Wei Zhao
  • Shucai Huang

Abstract

Space-based early warning system, the main detection means of which is passive detection based on focal plane, is an important part of ballistic missile defense system. The focal plane is mainly composed of CCD, and its size can reach the micron level, so the pixel is often regarded as point of no area in image postprocessing. The design of traditional tracking methods is based on this, and the observation based on the focal plane is modeled as the azimuth with random noise. However, this modeling is inaccurate. In the context of space-based detection, CCD cannot be simplified as a point, and its size should be considered. And the corresponding observation cannot be treated as azimuth with random noise. In this paper, the observation based on focal plane is modeled as Unambiguously Generated Ambiguous (UGA) measurement. The PHD filter algorithm is redesigned and simplified. The simulation results show that the algorithm based on UGA measurement observation model has better tracking effect compared with that based on traditional observation model. This method provides technical support for more accurate target tracking for space-based early warning system.

Suggested Citation

  • Wei Zhao & Shucai Huang, 2017. "Ballistic Target PHD Filter Based on Infrared Focal Plane Ambiguous Observation," Mathematical Problems in Engineering, Hindawi, vol. 2017, pages 1-8, November.
    • Handle: RePEc:hin:jnlmpe:5702592
    DOI: 10.1155/2017/5702592
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