초록 ▼

A high-sensitivity sensor configuration improves upon airborne hyperspectral and multispectral sensing, particularly for thermal/infrared military target detection and/or identification. The invention combines dispersive spectrometer and filtered TDI detector techniques to provide improved NESR thro

A high-sensitivity sensor configuration improves upon airborne hyperspectral and multispectral sensing, particularly for thermal/infrared military target detection and/or identification. The invention combines dispersive spectrometer and filtered TDI detector techniques to provide improved NESR through increased dwell time, along with interband temporal simultaneity and spatial registration. Embodiments relating to hyperspectral, multispectral, and dual-band arrangements are disclosed.

대표청구항 ▼

[ What is claimed is:] [1.] In an imaging spectrometer of the type including a focal-plane array having a dispersive dimension, the improvement comprising:a focal-plane arrangement having one or more sets of detector array segments, each such segment being laterally shifted in the dispersive dimensi

[ What is claimed is:] [1.] In an imaging spectrometer of the type including a focal-plane array having a dispersive dimension, the improvement comprising:a focal-plane arrangement having one or more sets of detector array segments, each such segment being laterally shifted in the dispersive dimension and optically filtered to spatial register the dispersion associated therewith;fore-optics, including an aperture sized to permit each set of detector array segments to view a different field angle of a scene of interest; andelectronics coupled to the focal-plane arrangement to perform a time-delay-integrate (TDI) operation on a segment-by-segment basis, and generate a spectral image representative of the scene of interest.