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Airborne dual-antenna direction measuring method and device

A direction-finding device and dual-antenna technology, which is applied in the direction of measuring devices, radio wave measurement systems, satellite radio beacon positioning systems, etc., can solve the problems of large positioning errors and inability to reflect high-precision measurement of carrier phase, and achieve the elimination of error interference , the effect of high coordinate accuracy

Pending Publication Date: 2017-07-21
BEIJING SDI SCI & TECH
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AI Technical Summary

Problems solved by technology

[0002] In the prior art, the positioning of the flight carrier adopts the absolute positioning method. This positioning method is easily affected by factors such as satellite errors and atmospheric propagation errors. The positioning error is relatively large, and often cannot reflect the advantages of high-precision carrier phase measurement.

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  • Airborne dual-antenna direction measuring method and device
  • Airborne dual-antenna direction measuring method and device

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Embodiment Construction

[0035] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0036] Such as figure 1 As shown, the airborne dual-antenna direction finding method of the embodiment of the present invention includes the following steps:

[0037] Step S1, calculating the space coordinates of the airborne first antenna and the airborne second antenna by using the carrier phase measurement positioning method.

[0038] The principle of the positioning method based on carrier phase measurement will be firstly described below.

[0039] The core positioning algorithm of Beidou / GPS positioning and orie...

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Abstract

The invention provides an airborne dual-antenna direction measuring method and a device. The method comprises steps of acquiring a carrier wave phase position measuring and positioning method to calculate space coordinates of an airborne first antenna and an airborne second antenna; according to the space coordinates of the airborne first antenna and the airborne second antenna, calculating the direction vector, pointing to the airborne second antenna, of the airborne first antenna; and according to the direction vector, calculating the course angle and the pitching angle of a carrier. According to the invention, effects of all kinds of error interferences can be eliminated as far as possible; coordinates of two antennas can be quickly and precisely obtained; and by use of the course direction resolving method and the carrier wave relative positioning principle, it is quite easy to determine to-be-measured specific data.

Description

technical field [0001] The invention relates to the technical field of antenna direction finding, in particular to an airborne dual antenna direction finding method and device. Background technique [0002] In the prior art, the positioning of the flight carrier adopts the absolute positioning method. This positioning method is easily affected by factors such as satellite errors and atmospheric propagation errors. The positioning error is relatively large, and often cannot reflect the advantages of high-precision carrier phase measurement. In order to solve the above problems, it is necessary to propose a relative positioning method to locate the flying carrier. Contents of the invention [0003] The aim of the present invention is to solve at least one of said technical drawbacks. [0004] For this reason, the object of the present invention is to propose an airborne dual-antenna direction-finding method and device, which can eliminate the influence of various error inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/44
CPCG01S19/44
Inventor 孙国华
Owner BEIJING SDI SCI & TECH
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