Low-cost remote precision positioning monitoring method based on satellite signal reflector

Abstract

The invention provides a low-cost remote precise positioning monitoring method based on a satellite signal reflector, and the method comprises the steps: designing the satellite signal reflector, forwarding a signal of a target monitoring position to a fixed base station through the reflector, and monitoring the target position through the phase difference between a satellite direct signal and a reflector signal. Compared with a traditional monitoring method, the method has the advantages that remote precise disaster monitoring with high safety performance and low cost can be realized; preprocessing the signals received by the two receiving antennas at a fixed base station to obtain relatively stable original data; and then a pseudo-range and carrier phase double-difference observation model is established by using the processed signals of different antennas, delay errors in the signal transmission process are eliminated, the double-difference integer ambiguity is solved in combination with Kalman filtering and a lambda algorithm in the process, and the accurate coordinates of the monitored point can be solved. According to the method, the satellite signal reflector is effectively used for geological disaster monitoring, and a low-cost new model is provided for future disaster monitoring.

Description

technical field [0001] The invention belongs to the outdoor long-distance high-precision positioning technology, and is a low-cost long-distance precision positioning monitoring method based on a satellite signal reflector. Background technique [0002] The existing geological disaster monitoring technologies in my country include precision leveling, three-dimensional laser scanning technology, synthetic aperture radar interferometry, optical fiber technology, optical remote sensing technology, etc. These monitoring technologies are relatively expensive regardless of the measurement accuracy, and due to Due to the particularity of most terrains, some monitoring technologies that collect data on the spot cannot be used. However, the traditional satellite remote landslide monitoring system requires data communication with multiple receivers, and generally requires the use of a mobile communication network as a data link. In some remote mountainous areas, only the second-generat...

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Problems solved by technology

[0002] The existing geological disaster monitoring technologies in my country include precision leveling, three-dimensional laser scanning technology, synthetic aperture radar interferometry technology, optical fiber technology, optical remote sensing technology, etc. These monitoring technologies are relatively high in cost regardless of the measurement accuracy, and due to Due to the particularity of most terrains, some monitoring technologies that collect data manually cannot be used

The traditional satellite remote landslide monitoring system needs to communicate with multiple receivers, and generally requires the use of a mobile communication network as a data link. In some remote mountainous areas, there is only a second-generation wireless communication technology communication network, which is prone to communication dropouts, etc. question

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