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In this paper, we present mapKITE, a new mobile, simultaneous terrestrial and aerial, geodata collection and post-processingmethod. On one side, the method combines a terrestrial mobile mapping system (TMMS) with an unmanned aerial mapping one,both equipped with remote sensing payloads (at least, a nadir-looking visible-band camera in the UA) by means of which aerial andterrestrial geodata are acquired simultaneously. This tandem geodata acquisition system is based on a terrestrial vehicle (TV) and onan unmanned aircraft (UA) linked by a 'virtual tether', that is, a mechanism based on the real-time supply of UA waypoints by theTV. By means of the TV-to-UA tether, the UA follows the TV keeping a specific relative TV-to-UA spatial configuration enablingthe simultaneous operation of both systems to obtain highly redundant and complementary geodata.  On the other side, mapKITE presents a novel concept for geodata post-processing favoured by the rich geometrical aspects derivedfrom the mapKITE tandem simultaneous operation. The approach followed for sensor orientation and calibration of the aerial imagescaptured by the UA inherits the principles of Integrated Sensor Orientation (ISO) and adds the pointing-and-scaling photogrammetricmeasurement of a distinctive element observed in every UA image, which is a coded target mounted on the roof of the TV. By meansof the TV navigation system, the orientation of the TV coded target is performed and used in the post-processing UA imageorientation approach as a Kinematic Ground Control Point (KGCP). The geometric strength of a mapKITE ISO network is thereforehigh as it counts with the traditional tie point image measurements, static ground control points, kinematic aerial control and the newpoint-and-scale measurements of the KGCPs. With such a geometry, reliable system and sensor orientation and calibration andeventual further reduction of the number of traditional ground control points is feasible.  The different technical concepts, challenges and breakthroughs behind mapKITE are presented in this paper, such as the TV-to-UAvirtual tether and the use of KGCP measurements for UA sensor orientation. In addition, the use in mapKITE of new EuropeanGNSS signals such as the Galileo E5 AltBOC is discussed. Because of the critical role of GNSS technologies and the potentialimpact on the corridor mapping market, the European Commission and the European GNSS Agency, in the frame of the EuropeanUnion Framework Programme for Research and Innovation “Horizon 2020,” have recently awarded the “mapKITE” project to aninternational consortium of organizations coordinated by GeoNumerics S.L

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

A METHOD FOR SIMULTANEOUS AERIAL AND TERRESTRIAL GEODATA ACQUISITION FOR CORRIDOR MAPPING