The ADS40 Airborne Digital Sensor has been developed to fulfil both photogrammetric and remote sensing requirements. The new sensor is more than just a camera to take attractive aerial photographs. It will be the next generation, fully digital measurement device for photogrammetry and remote sensing. The high accuracy design of the focal plane system under flight and environmental conditions (pressure and temperature) is presented. The ADS40 project is introduced as a design based on a modular, customised CCD line-scanner concept, with 4 multispectral CCD lines and 3 panchromatic CCD lines. The presentation gives an overview of all dependencies and design constraints on the ADS40 Focal Plate Module (FPM). The ADS4O optical system has to support both photogrammetric accuracy and the requirement on the SNR for remote sensing applications. The principle used to achieve good colour pixel matching is described in relation to the customised CCD and FPM designs. After a short description of the technical design and performance, some applications are shown to demonstrate the main features of this digital sensor: high accuracy, wide angle, high radiometric dynamics, high signal-to-noise-ratio, in-track stereo capability, multispectral capability.
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