Statistical modeling of infrared (IR) background due to spacecraft-induced line-of-sight jitter

Alexander C. Liang

doi:10.1117/12.957975

17 December 1979 Statistical modeling of infrared (IR) background due to spacecraft-induced line-of-sight jitter

Alexander C. Liang

Proceedings Volume 0197, Modern Utilization of Infrared Technology V; (1979) https://doi.org/10.1117/12.957975
Event: 23rd Annual Technical Symposium, 1979, San Diego, United States

Abstract

The effect of spacecraft induced line-of-sight (LOS) jitter on the performance of a spaceborne IR sensor in the presence of spatially varying earth background is analyzed. This paper presents a one-dimensional stochastic model of the spatially varying background process as seen by a staring sensor with its LOS under-going jitter which is in turn prescribed by a stochastic process. More specifically, the background and jitter processes are combined in deriving a closed-form expression for the temporal autocorrelation function of the irradiance. A method of quantitatively evaluating the effect of LOS jitter on sensor performance in terms of signal-to-noise ratio degradation is also included.

Citation Download Citation

Alexander C. Liang "Statistical modeling of infrared (IR) background due to spacecraft-induced line-of-sight jitter", Proc. SPIE 0197, Modern Utilization of Infrared Technology V, (17 December 1979); https://doi.org/10.1117/12.957975

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