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An all-round gps multi-path signal testing device

A GPS signal and signal testing technology, which is applied in the direction of the beacon system using radio waves, etc., can solve the problems of the height of the error reflector, the relative orientation of the reflector and the GPS antenna, etc., and achieve height control, high precision control, and accurate distance The effect of control

Inactive Publication Date: 2012-02-22
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a kind of all-round GPS multi-path signal testing device, and its purpose is to solve the difficult precise control of the height of the reflector, the distance between the reflector and the GPS antenna, and the relative orientation between the reflector and the GPS antenna in the GPS multi-path error experiment And other issues

Method used

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  • An all-round gps multi-path signal testing device
  • An all-round gps multi-path signal testing device
  • An all-round gps multi-path signal testing device

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Embodiment Construction

[0020] The implementation steps of the present invention will be described in detail below in conjunction with the technical scheme and accompanying drawings.

[0021] Step 1. Determine the size and parameters of the multipath signal testing device by analyzing the distribution law of the GPS satellites in the air and the location where the multipath experiment is performed.

[0022] Step 2. track 19 is fixed on the ground, and one end of track 19 connects GPS signal receiver antenna support 24 by bolt 23; The GPS signal receiver antenna 20 is installed on the diameter plate 21 .

[0023] Step 3. The other end of the track 19 is connected to the support 17 of the telescopic rod through the bolt 18;

[0024] Step 4. Two runners 11 are symmetrically installed on the lower part of the support rod 13 of the reflector, and two hanging rings 2 are welded at the corresponding positions on the upper end.

[0025] Step 5. Disconnect the supporting rods 13 of the reflection plate on t...

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Abstract

An all-round GPS multi-path signal testing device, mainly composed of a fixture, a hanging ring, a shape memory alloy stranded wire, a reflector, a reflector fixing strip, a roller, a fastening device, a runner, a reflector support rod, and a connecting flange , telescopic pole, track, GPS receiver antenna, suppression path plate and antenna support. It is characterized in that: the upper end of the GPS receiver antenna support connected to one end of the track is connected with a diameter plate and the receiver antenna; the upper end of the telescopic rod connected to the other end of the track is equipped with a flange, and the lower part of the reflector support rod connected to the upper end of the flange It is equipped with a runner, and the upper hanging ring and the middle of the runner are connected by a shape memory alloy stranded wire; a fastening device and a roller are installed at the disconnection of the support rod of the reflector at the upper part of the runner, and a reflector is installed on the disconnected part. Board fixing strips. The effect and benefit of the present invention are that the size of the reflector can be adjusted, the height can be controlled, the distance from the GPS antenna can be controlled, and the relative orientation to the GPS antenna can be controlled.

Description

technical field [0001] The invention belongs to the technical field of civil engineering and surveying engineering, and relates to an all-round GPS multipath signal testing device. Background technique [0002] In recent years, with the gradual maturity of the carrier relative positioning technology in GPS, this deformation monitoring method with superior performance such as high efficiency, fast, automatic, all-weather and high precision has begun to be applied in super-large civil engineering. Through GPS deformation monitoring, a large number of repeated observation data of measuring points can be obtained. These data information not only contain the real deformation of the building, but also inevitably contain various interference error items, such as errors related to GPS satellites: satellite orbit deviation, Satellite clock error; errors related to satellite signal propagation: ionospheric refraction, tropospheric refraction, multipath effect; errors related to receiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S1/04
Inventor 伊廷华李宏男
Owner DALIAN UNIV OF TECH