Electronic Resource
Correlated-k Based Fast, Accurate Bandpass Radiance and Transmittance Calculations for Hyperspectral and Multispectral Scenes
| العنوان: | Correlated-k Based Fast, Accurate Bandpass Radiance and Transmittance Calculations for Hyperspectral and Multispectral Scenes |
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| المؤلفون: | SPECTRAL SCIENCES INC BURLINGTON MA, Acharya, Prabhat, Berk, Alexander, Panfili, Raphael, Adler-Golder, Steven M., Wetmore, Alan, Shirkey, Richard |
| المصدر: | DTIC |
| بيانات النشر: | 2007 |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | The ability to rapidly calculate at-sensor radiance over a large number of lines of sight (LOSs) is critical for hyperspectral and multispectral scene simulations and look-up table generation, both of which are increasingly used for sensor design, performance evaluation, data analysis, and software and systems evaluations. We have demonstrated a new radiation transport (RT) capability that combines an efficient multiple-LOS (MLOS) multiple scattering (MS) algorithm with a broad-bandpass correlated-k methodology called kURT-MS, where kURT stands for correlated-k-based Ultra-fast Radiative Transfer. The MLOS capability is based on DISORT and exploits the existing MODTRAN-DISORT interface. kURT-MS is a new sensor-specific fast radiative transfer formalism for UV-visible to LWIR wavelengths that is derived from MODTRAN's correlated-k parameters. Scattering parameters, blackbody and solar functions are cast as a few sensor-specific and bandpass-specific k-dependent source terms for radiance computations. Preliminary transmittance results are within 2% of MODTRAN with a two-orders-of-magnitude computational savings. Preliminary radiance computations in the visible spectrum are within a few percent of MODTRAN results but with orders of magnitude speed up over comparable MODTRAN runs. This new RT capability (embodied in two software packages: kURT-MS and MODTRAN-kURT) has potential applications for remote sensing applications such as hyperspectral scene simulation and look-up table generation for atmospheric compensation analysis as well as target acquisition algorithms for near earth scenarios. Published in the SPIE Europe Proceedings, Security and Defence, V6748, 2007. Sponsored in part by ARL Contract nos. W911QX-06-C-0022 and W911QX-06-C-0141. |
| مصطلحات الفهرس: | Computer Programming and Software, Cybernetics, Optical Detection and Detectors, Optics, SCENE GENERATION, HYPERSPECTRAL IMAGERY, REMOTE DETECTORS, RADIANCE, TRANSMITTANCE, MULTISPECTRAL, RADIATIVE TRANSFER, LINE OF SIGHT, COMPUTERIZED SIMULATION, ALGORITHMS, COMPUTER PROGRAMS, ATMOSPHERIC SCATTERING, KURT(CORRELATED KAPPA DISTRIBUTION BASED ULTRA FAST RADIATIVE TRANSFER), KURT-MS(BROAD BANDPASS CORELLATED KAPPA METHODOLOGY), LOOK-UP-TABLES, MODTRAN(MODERATE RESOLUTION ATMOSPHERIC TRANSMISSION), MODTRAN COMPUTER PROGRAM, MODTRAN-KURT, HYPERSPECTRAL SCENE SIMULATION, MULTISPECTRTAL SCENE SIMULATION, MLOS(MULTIPLE LINE OF SIGHT), MULTIPLE SCATTERING ALGORITHM, DISORT(DISCRETE ORDINATES RADIATIVE TRANSFER), Text |
| URL: | |
| الاتاحة: | Open access content. Open access content Approved for public release; distribution is unlimited. |
| ملاحظة: | text/html English |
| Other Numbers: | DTICE ADA532190 832101019 |
| المصدر المساهم: | From OAIster®, provided by the OCLC Cooperative. |
| رقم الانضمام: | edsoai.ocn832101019 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |