Satellite based Navigational System Errors
A L Siridhara1, D V Ratnam2
1A L Siridhara*, Research Scholar, Department of Electronics and Communication Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur, Andhra Pradesh, India.
2D V Ratnam, Professor, Department of Electronics and Communication Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur, Andhra Pradesh, India.
Manuscript received on December 11, 2019. | Revised Manuscript received on December 22, 2019. | Manuscript published on January 10, 2020. | PP: 206-208 | Volume-9 Issue-3, January 2020. | Retrieval Number: B7863129219/2020©BEIESP | DOI: 10.35940/ijitee.B7863.019320
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: When two or more signals of the satellite signals arrives through a GPS antenna with different tracks it leads to multipath phenomenon. The two main classifications of multipath phenomenon are specular and diffuse multipath. In the multipath pertaining to specular phenomenon the signals of GPS are reverberated through relatively sleek surfaces resulting in unsystematic errors within both pseudorange and carrier phase measurements. In contrast, diffuse phenomenal multipath is considered when the signal of GPS is incidental along a rough exterior where the reverberated signals are dispersed in various directions and generally they are unrelated in time period domain and it is noisy in activity. The stated unsystematic in-accurateness tin to be significant and leads to misconceptions of meters in the range in regard of pseudo range and for phase measurements at a range of a few centimeters . As the positioning mechanism needs to be be precised needs the straight path betwixt the satellites and a receiver, as the phenomenon of multipath doesn’t exist. The phenomenal multipath occurrences for the associated misconceptions in a GPS apparents eventually evidences for navigational misconceptions. Topical studies on GPS and its applications stimulate the necessitate for an improved multipath characterization techniques, to have an increased admiration for the spatial complexity and sequential of specific- position multipath environments.
Keywords: Diffuse Multipath, Pseudorange, Carrier Phase, Spatial Complexity etc
Scope of the Article: Signal Control System & Processing