Multi-Frequency GBSAR Test Campaing, Castell de Subirats, Spain

At the end of May 2020, we resumed our activities to test the new multi-frequency GBSAR system, developed in a joint effort of Balamis and the Remote Sensing Laboratory of the Universitat Politècnica de Catalunya, as the PhD of Adrià Amézaga under the aegis of the Industrial Doctorate Programs of the Generalitat de Catalunya and the Spanish Ministry of Science, Innovation and Universities.

This time, we tested the system performances for forest monitoring at X-, C- and L-band frequencies. The test area is located right next to the Castell de Subirats (Subirats Castle), in the outskirts of the Barcelona city.

The video below shows the three time-series of |S_{vv}| images at X-, C- and L-band frequencies measured this day. It is interesting to observe the effects of data stability at lower frequencies, specially L-band, and how some rocky structures under the vegetation are only visible at this frequency.