Development And Evaluation Of The MEIS II Multi-Detector Electro-Optical Imaging Scanner

An advanced airborne pushbroom scanner, MEIS II, has been developed and operated by the Canada Centre for Remote Sensing. The imaging scanner uses charge-coupled device linear array detectors, and covers the near infrared and visible spectral regions, spectral bands being readily selected by means of optical filters. MEIS II has a low noise equivalent radiance and high spatial resolution, and its real-time data processor provides radiometric gain and offset corrections, together with geometric and aircraft roll compensation. The sensor shows an improvement in noise equivalent radiance of at least two orders of magnitude when compared to the rotating-mirror scanner presently in use at CCRS as well as improvements in the geometric fidelity and spatial measurements, with inter-channel registration to within a fraction of a pixel.