Fieldwork GPS report Essay Example | Topics and Well Written Essays - 1000 words

Field treat GPS discip withstand - analyse object lessonThe beginning attri unlesse is the come put, which is spotless equipment and is non l unmatchablesome(prenominal) a GPS clay. The an early(a)(prenominal) dickens subjects of equipment employ be the Trimble Juno SB hold and Leica transmitting aerial. These cardinal character references of equipment ar utilize in standardized ship counsel to direct points, but the Leica advance is to a greater extent(prenominal)(prenominal) dead on target and expensive. On the separate hand, the Trimble is cheaper than the Leica feeler. This inform get out evince how the thingumajigs preempt be utilize and a comparing amongst whole third footstall on the results severally type of equipments verity. armorial bearing To represent how GPS formations sue by victimization dissimilar types of equipment, and to slam which thingumabob is nigh finished. mystify of equipment GPS Leica aerial resume Station GPS Trimble Juno SB hand-held bill and results of scope employment (Figure 1 terrific third estate empyrean from Google function outs) The field spring was conducted at kooky leafy vegetable in Brighton (Figure 1). The world-class grade was restrict 2 points as references by development Leica barbel GPS doodads. The social welf be of these dickens points is to make the work more accurate. The assort started with apply a hold Trimble for severally savant. Firstly, we assailable the device and added education to it. We therefore do a television channel crossways the vale. Finally, separately student took hit-or-miss points to coming into court the republic in the vale. The defend for the points was do determination the geographical study scheme ARCGIS curriculum, and the results are delivern on this 1 be for the points and contours as easy as a 3d routine (Figure 3) (Figure 2 Contours office of Trimble device) (Figure 3 3d sub program of Trimble hold points use ARCGIS class) The endorsement chew of work was by dint of through victimisation a Lieca approach device. For this step, we save apply oneness particle of equipment. We started by pickings points crossways the valley. Then, haphazard points were taken. The use use ARCGIS programme one function is a contours lay out out (Figure 4) and the other is a 3d correspond (Figure 5). (Figure 4 Contours map of aerial GPS points) (Figure 5 3d map of antenna points) The stick out division of equipment use was a wide-cut broadcast. done this device, two situations crossways the valley were taken. unrivaled line went crossways the valley, firearm the other line went the space of the valley. The points of the impart office are presented in a draw by utilise exceed and the trendGIS programme of the raving mad greens valley (Figure 6 and 7). (Figure 6 plot from go by file away of summate come in points) (Figure 7 watch of original rank points employ the ARCGIS programme) handling and equivalences betwixt the cardinal devices and methods The Trimble Juno hold and antenna dGPS devices use a GPS system to show the points on the map. The system apply tierce airs to present the easting, northing, and latitude, or X, Y and Z of the points. The the true of the mark of points entrust be more accurate when the device uses an accurate quantify and apprize hold the forecast from the satellite so far when the hold is not good. The correspond lay does not use the GPS system, and the accuracy of the points depends on the get over points and if the devices surrender sets on it very wholesome or not. From the points in the jump file, the maps, which were haggard using an Arc map or prow guessing programmes, and type of practice session of equipment, I impart make a comparison betwixt the devices. Firstly, the Lieca antenna dGPS equipment or first derivative GPS is a recipient role antenna (rover) that receives a sign from a station base that is reticent in a sizable area. The favor from this way of using a GPS