Antenna phase center measuring device and method based on attitude data

A technology of antenna phase center and measuring device, which is applied in the fields of antenna measurement and satellite navigation and positioning, can solve problems such as measurement errors, and achieve the effects of high measurement accuracy, elimination of hardware delay errors, and strong compatibility

Pending Publication Date: 2022-04-08
GUANGZHOU GRG METROLOGY & TEST CO LTD +5
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AI Technical Summary

Problems solved by technology

[0005] In order to solve existing problems such as measurement errors caused by only using a simple multi-antenna system in the field observation, the present invention provides a phase center measurement device and method based on antenna attitude

Method used

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  • Antenna phase center measuring device and method based on attitude data
  • Antenna phase center measuring device and method based on attitude data
  • Antenna phase center measuring device and method based on attitude data

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Embodiment 1

[0042] according to figure 1An antenna phase center measurement device based on attitude data is shown, including a satellite system, an angle test system and a multi-frequency point receiver, wherein the satellite system provides test signals, the angle test system is used to eliminate errors, and the multi-frequency point receiver For recording data; the satellite system includes a satellite antenna 1, a swing rod 2 and a telescopic rod 3, the satellite antenna 1 is installed on the upper end of the swing rod 2, the swing rod 2 is movably connected with the telescopic rod 3, and the telescopic rod 3 Located at the lower end of the pendulum 2; a lightning surge protector 4 is provided between the satellite system and the angle test system, wherein the lightning surge protector 4 is to ensure that the signal strength and signal-to-noise ratio received by the antenna are good, and it needs to be installed In open and unshielded places, there is a possibility of encountering lig...

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PUM

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Abstract

The invention discloses an antenna phase center measuring device and method based on attitude data, and relates to the field of antenna measurement and satellite navigation positioning, and the antenna phase center measuring device comprises a satellite system, an angle testing system and a multi-frequency-point receiver. The satellite system comprises a satellite antenna, a swing rod and a telescopic rod, the satellite antenna is installed at the upper end of the swing rod, the swing rod is movably connected with the telescopic rod, and the telescopic rod is arranged at the lower end of the swing rod; a lightning surge protector is arranged between the satellite system and the angle testing system; and the multi-frequency-point receiver is in communication connection with the angle testing system. The satellite simulator and the multi-frequency-point receiver use the same reference clock module, so that the clock error, multi-path error, troposphere error, ionosphere error and other errors between the receiver and the satellite are eliminated.

Description

technical field [0001] The invention relates to the fields of antenna measurement and satellite navigation positioning, in particular to an antenna phase center measurement device and method based on attitude data. Background technique [0002] Antenna phase center refers to the position of the equivalent point source of electromagnetic radiation of the antenna. At present, the calibration of the antenna phase center mainly adopts the rotating antenna method similar to the QJ1729A standard, or the short baseline measurement method similar to BD420003. These two methods can complete the calibration and calibration of antenna phase center deviation. Currently, IGS CB will fully use the absolute phase center correction model to replace the relative phase center correction model for the impact of antenna phase center changes on positioning. For example, "Chen Tao, Hu Zhigang, Li Tao. Experimental research on precise detection of GPS antenna phase center change[J]. Earthquake Ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/37G01S19/23
Inventor 王卓念张雷刚钟玉莲张辉
Owner GUANGZHOU GRG METROLOGY & TEST CO LTD
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