Correcting radar range measurements for atmospheric propagation effects

A. W. Doerry

doi:10.1117/12.2048977

29 May 2014 Correcting radar range measurements for atmospheric propagation effects

A. W. Doerry

Proceedings Volume 9077, Radar Sensor Technology XVIII; 90771K (2014) https://doi.org/10.1117/12.2048977
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

A fundamental relationship that is the foundation for all radar is that a target’s range is proportional to an echo delay time. The actual relationship requires knowledge of the velocity of propagation of the signal whose echo delay time is measured. A typical assumption for radar ranging is to use free-space velocity of propagation. However, atmospheric dielectric properties yield a measurably slower velocity of propagation that is a function of temperature, atmospheric pressure, and especially humidity. This results in range measurement errors. A simplified model is developed to estimate the error in range measurements for airborne ground-surveillance radars.

Citation Download Citation

A. W. Doerry "Correcting radar range measurements for atmospheric propagation effects", Proc. SPIE 9077, Radar Sensor Technology XVIII, 90771K (29 May 2014); https://doi.org/10.1117/12.2048977

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