By L. Mussio, G. Forlani, F. Crosilla
The e-book includes 31 papers on diversified fields of software and the issues of modelling and organizing information in constructions, the processing concepts of GIS info for queries to the procedure and the so-called Dynamic GIS were mentioned intimately. a last paper on special effects ideas is incorporated. Its contents may be preferably accrued in 5 chapters, within the first one a few stories on info acquisition with good value DGPS for highway survey and evaluation on motor vehicle Navigation platforms (VNS) are proven. the second one on "GIS facts acquisition and overview” collects a type of papers treating strong statistical recommendations utilized to pre-processing, research and checking out for other kinds of GIS information. in the subject on "image acquisition and preprocessing” particularly a few stories on try out and calibration of alternative scanners for GIS facts acquisition are pronounced in addition to a few unique ways to the automated DTM new release for cartographic and shut variety functions. ultimately, a few purposes to the environmental tracking and to using other forms of geodetic information in multipurpose neighborhood GIS, including a few examples of the applicability of multimedia know-how to structure and civil engineering is shown.
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Neither cycle slip nor satellite set occurred in the considered time interval. Figure shows the same trajectory processed with the addition of one further satellite. These divergences are also dangerous in the RTK applications: they can cause the transition from the "fix" to the "float" solution, or even to the pseudorange one. 4. Enviromental parameter location GPS is a unique tool for locating the values of the environmental parameters measured by means of sensors mounted on the vehicle. We have proposed this method for monitoring the atmospheric pollution due to the traffic.
RDOP values obtained with an "epoch by epoch" kinematic pseudorange processing of a static baseline using a 4 satellite constellation (sats N. 99 RDOP nonn. 1 o 22046893. 57 pseudorange (m) the two values pointed out in the Table 1 (for 574679 and 574874 GPS time of week). Table 2. RDOP values obtained using the previsional RDOP software produced at cur Department: the comparison has been made for PDOP Constellation 5 7 Yes 15:41:15 Y(m) 14 RDOP nonn. ) C /) o - O' .... '< 1 .... < (» C/) = "'0..
E. the robot tries to estimate the displacement between the current reference frame and one attached to a place of the graph. When the displacement is provided, the local view is merged into the correspondent place obtaining a new extended view (frames El, E2, E3, E4 in Fig. 1). The robot currrent position is related to the reference frame attached to that place. It is clear that in a diktiometric representation the robot absolute position is meaningless. As said above, when the local view is lacking in information the robot cannot self-locate.