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, "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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