Airborne electro-optical sensor: performance predictions and design considerations

R. K. Mishra; A. M. G. Pillai; M. R. Sheshadri; C.G. Sadasiva Sarma

doi:10.1117/12.45689

1 August 1991 Airborne electro-optical sensor: performance predictions and design considerations

R. K. Mishra, A. M. G. Pillai, M. R. Sheshadri, C.G. Sadasiva Sarma

Proceedings Volume 1482, Acquisition, Tracking, and Pointing V; (1991) https://doi.org/10.1117/12.45689
Event: Orlando '91, 1991, Orlando, FL, United States

Abstract

TV- or FLIR-based electro-optical (EO) sensors are used for target acquisition in an airborne scenario. The TV sensor typically consists of an optical unit, a solid-state camera, and a visual monitor for image display. Target size, sensor resolution, atmosphere, platform disturbances, etc, are some of the important factors to be considered for designing an EO sensor for an airborne mission. A TV-based target acquisition system has been designed and developed. The resolution of the optical unit has been measured with the help of a TV resolution test chart and by experimentally evaluating the modulation transfer function (MTF). This technique has been extended for the measurement of MTF of the sensor (including video monitor). The sensor resolution deteriorates considerably due to base motions of the carrying platform. The degradation of sensor MTF due to airframe motion and angular vibration has been experimentally studied, and the results are presented. Present study enables the designer to predict the sensor performance for a given airborne scenario. Anomaly between the present values and the results reported earlier is indicated. Design considerations of an airborne sensor are also discussed briefly.

Citation Download Citation

R. K. Mishra, A. M. G. Pillai, M. R. Sheshadri, and C.G. Sadasiva Sarma "Airborne electro-optical sensor: performance predictions and design considerations", Proc. SPIE 1482, Acquisition, Tracking, and Pointing V, (1 August 1991); https://doi.org/10.1117/12.45689

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