Analysis of the Co-Polar Complex Coherence for Crop Growth Monitoring

Abstract

In this paper, we explore the utilisation of the complex coherence between HH and VV channels as a tool for crop monitoring. The analysis includes the examination of time series of polarimetric data collected from both airborne and space-borne platforms at L and C band. Results suggest that the L band exhibits a higher sensitivity to crop changes than the C-band in both amplitude and phase of the coherence between the co-polar channels. Moreover, incidence angle is identified as a factor influencing the values of the complex coherence, and hence its sensitivity to crop features.