| 摘要 |
A field multiplexed dispersive imaging spectrometer ( 20 ). The novel system includes foreoptics ( 22 ) for receiving incoming electromagnetic energy, a disperser ( 24 ) disposed to receive energy from the foreoptics ( 22 ), and a focal plane array ( 28 ) disposed to receive energy from the disperser ( 24 ). The disperser ( 24 ) is a computer generated holographic disperser designed to disperse light into several, overlapping diffraction orders. In the preferred embodiment, the disperser ( 24 ) is designed with greater energy in the central, undiffracted order than in the other diffracted orders. The system ( 20 ) also includes a processor ( 30 ) which takes the data detected by the focal plane array ( 28 ) and generates a representation of the input image in several color bands using an iterative restoration algorithm ( 32 ).
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