Remote Sensing Applications and Decision Support

Precision targeting in guided munition using infrared sensor and millimeter wave radar

[+] Author Affiliations
Sreeja Sulochana, Hemendra Arya

Indian Institute of Technology, Department of Aerospace Engineering, IIT Bombay, Mumbai 400076, India

Hari B. Hablani

Indian Institute of Technology, Department of Mechanical Engineering, Gandhinagar, India

J. Appl. Remote Sens. 10(3), 036002 (Jul 06, 2016). doi:10.1117/1.JRS.10.036002
History: Received February 8, 2016; Accepted June 14, 2016
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Abstract.  Conventional munitions are not guided with sensors and therefore miss the target, particularly if the target is mobile. The miss distance of these munitions can be decreased by incorporating sensors to detect the target and guide the munition during flight. This paper is concerned with a precision guided munition equipped with an infrared (IR) sensor and a millimeter wave radar (MmW). Three-dimensional flight of the munition and its pitch and yaw motion models are developed and simulated. The forward and lateral motion of a target tank on the ground is modeled as two independent second-order Gauss–Markov processes. To estimate the target location on the ground and the line-of-sight (LOS) rate to intercept it, an extended Kalman filter is composed whose state vector consists of cascaded state vectors of missile dynamics and target dynamics. The LOS angle measurement from the IR seeker is by centroiding the target image in 40 Hz. The centroid estimation of the images in the focal plane is at a frequency of 10 Hz. Every 10 Hz, centroids of four consecutive images are averaged, yielding a time-averaged centroid, implying some measurement delay. The miss distance achieved by including image processing delays is 1.45 m.

© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Sreeja Sulochana ; Hari B. Hablani and Hemendra Arya
"Precision targeting in guided munition using infrared sensor and millimeter wave radar", J. Appl. Remote Sens. 10(3), 036002 (Jul 06, 2016). ; http://dx.doi.org/10.1117/1.JRS.10.036002


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