Multiport vector network analyzer radar for tomographic forest scattering measurements
Artikel i vetenskaplig tidskrift, 2018

We describe a P-, L- A nd C-band radar, BorealScat, designed for polarimetric time-series measurements of forests. Radar tomography is implemented with a vertical antenna array, which provides measurements of the vertical scattering distribution. To minimize temporal decorrelation, the radar performs simultaneous measurements of the reflected signals using all array elements. The system is implemented using a 20-port vector network analyzer (VNA) and a stepped-frequency waveform. It has two 20-element arrays: One array optimized for P- A nd L-bands and one for C-band. The arrays are installed on a 50-m high tower and radar measurements are collected over a hemiboreal forest stand. We discuss several design issues and demonstrate some tomographic imaging capabilities. The multiport VNA tomography results are compared with results from the system operating in the slower 2-port VNA measurement scheme.

forest

polarimetry

vector network analyzer (VNA)

radar

scattering

tomography

time series

BorealScat

Författare

Lars Ulander

Chalmers, Rymd-, geo- och miljövetenskap, Mikrovågs- och optisk fjärranalys

Albert Monteith

Chalmers, Rymd-, geo- och miljövetenskap, Mikrovågs- och optisk fjärranalys

Maciej Soja

Horizon Geoscience Consulting

University of Tasmania

Leif Eriksson

Chalmers, Rymd-, geo- och miljövetenskap, Mikrovågs- och optisk fjärranalys

IEEE Geoscience and Remote Sensing Letters

1545-598X (ISSN)

Vol. 15 12 1897-1901 8454809

Ämneskategorier

Telekommunikation

Signalbehandling

Annan elektroteknik och elektronik

DOI

10.1109/LGRS.2018.2865673

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Senast uppdaterat

2019-03-18