Review of low-cost and high-precision positioning technology

doi:10.13474/j.cnki.11-2246.2020.0036

Abstract

Abstract: With the rapid development of low-cost receivers such as smartphones, continuity, integrity and high accuracy are becoming new positioning requirements. Precise positioning is applied successfully in intelligent transportation, augmented reality, deformation monitoring, precision agriculture and other fields. However, the low-cost GNSS receivers with centimeter-level positioning technology have not been widely used. The realization of high-precision positioning on low-cost terminals is restricted by the signal processing capability, and the phase center error and the multipath error caused by its low-quality antennas. The improvement of the positioning accuracy by antenna motion also brings a new opportunity to reduce positioning cost. This paper discusses efforts to implement the application of high-precision positioning technology in low-cost receivers by means of making a summary of existing exact positioning technologies and analyzing the obstacles of cost-saving receivers and discusses the solutions of low-cost and precise positioning. Finally, the research trend of low-cost and high precision positioning in the future is prospected based on existing research.

Key words: multipath, low-cost, high-precision, antenna motion, antenna phase center

CLC Number:

P228

LI Wanqing, FU Qixiang, LIU Beidian, LI Junzhi. Review of low-cost and high-precision positioning technology[J]. Bulletin of Surveying and Mapping, 2020, 0(2): 1-8.

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