Motion Induced Clutter Leakage In An AC-coupled Sensor

Nai K. Shi

doi:10.1117/12.935745

Abstract

A theoretical analysis has been done to estimate background clutter leakage noises due to vibrational motion in an AC-coupled mosaic sensor. The motion is separated into uniform drift-dominant and jitter-dominant cases. For the former case, a mathematical expression is obtained to give mean square clutter leakage in a summation form which includes the effects of background scene spatial variations, optical transfer function, footprint size, drift velocity and a smear function. The summation expression is simplified to obtain closed forms for equally spaced fill and spill samples and also for samplings at the end of a frame tine. In the jitter-dominant case, the leakage estimate is shown to depend upon both vibrational frequency and the statistics of the jitter motion.

Citation Download Citation

Nai K. Shi, Nai K. Shi, } "Motion Induced Clutter Leakage In An AC-coupled Sensor", Proc. SPIE 0409, Technical Issues in Infrared Detectors and Arrays, (30 November 1983); doi: 10.1117/12.935745; https://doi.org/10.1117/12.935745

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