A software tool for a simplified end-to-end simulation of data products from space-borne and airborne visible, near-infrared and short-wave infrared imaging spectrometers, starting from either synthetic or airborne hyper-spectral data, has been developed and tested. Such a simulator is conceived as a preliminary aid tool (during phase 0/A) for the specification and early development of new Earth observation optical instruments, whose compliance to user's requirements is achieved through a process of cost/performance trade-off. The proposed simulator is based on three principal core modules: the reflectance scenario simulator, the atmospheric simulator and the instrument simulator. High spatial/spectral resolution images with low intrinsic noise and the sensor/mission specifications are used as inputs. Examples of hyper-spectral and panchromatic images for existing and future instruments are reported, showing the capabilities for simulating target detection scenarios and image quality assessment. The Selex-ES simulator, as compared with other existing software, implements all modules necessary for a complete image simulation, allowing excellent flexibility and expandability for new integrated functions because of the adopted IDL-ENVI software environment. The simulation modeling has been validated and assessed through the matching between synthetized and true spectra acquired at ground and airborne level for clay soil mapping. A simulation of the same clay map at satellite scale has also demonstrated a more than acceptable agreement considering the coarser spatial resolution as compared to the airborne scale.
Validation and simulation examples of an end-to-end simulator for optical imaging systems / Coppo, Peter; Chiarantini, Leandro; Alparone, Luciano. - ELETTRONICO. - 8889:(2013), pp. 1-12. (Intervento presentato al convegno Sensors, Systems, and Next-Generation Satellites XVII tenutosi a Dresden, deu nel 2013) [10.1117/12.2028965].
Validation and simulation examples of an end-to-end simulator for optical imaging systems
ALPARONE, LUCIANO
2013
Abstract
A software tool for a simplified end-to-end simulation of data products from space-borne and airborne visible, near-infrared and short-wave infrared imaging spectrometers, starting from either synthetic or airborne hyper-spectral data, has been developed and tested. Such a simulator is conceived as a preliminary aid tool (during phase 0/A) for the specification and early development of new Earth observation optical instruments, whose compliance to user's requirements is achieved through a process of cost/performance trade-off. The proposed simulator is based on three principal core modules: the reflectance scenario simulator, the atmospheric simulator and the instrument simulator. High spatial/spectral resolution images with low intrinsic noise and the sensor/mission specifications are used as inputs. Examples of hyper-spectral and panchromatic images for existing and future instruments are reported, showing the capabilities for simulating target detection scenarios and image quality assessment. The Selex-ES simulator, as compared with other existing software, implements all modules necessary for a complete image simulation, allowing excellent flexibility and expandability for new integrated functions because of the adopted IDL-ENVI software environment. The simulation modeling has been validated and assessed through the matching between synthetized and true spectra acquired at ground and airborne level for clay soil mapping. A simulation of the same clay map at satellite scale has also demonstrated a more than acceptable agreement considering the coarser spatial resolution as compared to the airborne scale.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.