The InSAeS4 Airborne X-Band Interferometric SAR System: A First Assessment on Its Imaging and Topographic Mapping Capabilities

Remote Sensing

Stefano Perna²  Carmen Esposito²  Tiago Amaral¹  Paolo Berardino²  Giuseppe Jackson²  João Moreira¹  Antonio Pauciullo²  Eurico Vaz Junior¹  Christian Wimmer¹  Riccardo Lanari²  Richard Gloaguen³ 

[1] Bradar Indústria S/A, São José dos Campos (SP), 12244-000, Brazil;Istituto per il Rilevamento Elettromagnetico dell’Ambiente (IREA)—Consiglio Nazionale delle Ricerche (CNR), Napoli 80124, Italy;;Istituto per il Rilevamento Elettromagnetico dell’Ambiente (IREA)—Consiglio Nazionale delle Ricerche (CNR), Napoli 80124, Italy

关键词: Synthetic Aperture Radar (SAR);    airborne SAR;    airborne SAR Interferometery;    Digital Elevation Model (DEM);   

DOI  :  10.3390/rs8010040

来源: mdpi

【 摘 要 】

We present in this work a first assessment of the imaging and topographic mapping capabilities of the InSAeS4 system, which is a single-pass interferometric airborne X-Band Synthetic Aperture Radar (SAR). In particular, we first provide a brief description of the InSAeS4 sensor. Then, we discuss the results of our analysis on the SAR and interferometric SAR products relevant to the first flight-test campaign. More specifically, we have exploited as reference the GPS measurements relevant to nine Corner Reflectors (CRs) deployed over the illuminated area during the campaign and a laser scanner Digital Elevation Model (DEM). From the analysis carried out on the CRs we achieved a mean geometric resolution, for the SAR products, of about 0.14 m in azimuth and 0.49 m in range, a positioning misalignment with standard deviation of 0.07 m in range and 0.08m in azimuth, and a height error with standard deviation of 0.51m. From the comparison with the laser scanner DEM we estimated a height error with standard deviation of 1.57 m.

【 授权许可】

CC BY   
© 2016 by the authors; licensee MDPI, Basel, Switzerland.