Computational Reconfigurable Imaging Spectrometer (CRISP) final report
Abstract
Spaceborne spectral imagers such as those on Landsat have provided decades of continuous and highly valuable data that are used for surface imaging applications including land/water usage, evapotranspiration, and monitoring of volcanoes and fires. Despite the high value of such imaging spectrometers, high cost and complexity have limited the number of fielded instruments and dramatically increased the impact of losing any one instrument. Longwave thermal infrared instruments, in particular, historically require significant size, weight, and power (SWaP) due to the need for cryocooling, with the cost of existing instruments typically in the hundreds of millions of dollars. Hence, a significant opportunity exists for new technologies that reduce SWaP while providing more operational flexibility. The future of spaceborne remote sensing will include measurements that are distributed throughout large constellations of smaller spacecraft equipped with more affordable and integrated payloads capable of autonomous mission planning, intelligent data processing, and reconfigurable sensing. In this context, we introduce the Computational Reconfigurable Imaging Spectrometer (CRISP), a new imaging spectrometer. CRISP is a compact, low power thermal infrared hyperspectral imaging system fully compatible with the future Landsat mission (as well as that of heritage Landsat systems). It has the potential to provide significant additional scientific benefit to the Landsat mission via its higher native spectral resolution while concurrently providing the heritage wavebands of previous Landsat sensors. CRISP's advantageous use of computational imagery provides increased performance in a smaller and simpler platform compared to traditional solutions. CRISP's unique design has enabled its rapid evolution from concept to successful flight demonstration and performance assessment.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 03, 2021
- Accession Number
- AD1163568
Entities
People
- Adam B. Milstein
Organizations
- Massachusetts Institute of Technology