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Method and device for jointly positioning radiation source by multiple satellites and electronic equipment

A radiation source and satellite technology, applied in the field of multi-satellite joint positioning radiation source, can solve problems such as poor positioning accuracy

Active Publication Date: 2021-09-07
36TH RES INST OF CETC
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  • Description
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Problems solved by technology

[0004] In view of this, the main purpose of this application is to provide a method, device and electronic equipment for multi-satellite joint positioning of radiation sources, which are used to solve the technical problem of poor positioning accuracy of radiation source positioning methods in the prior art

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  • Method and device for jointly positioning radiation source by multiple satellites and electronic equipment
  • Method and device for jointly positioning radiation source by multiple satellites and electronic equipment
  • Method and device for jointly positioning radiation source by multiple satellites and electronic equipment

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Embodiment Construction

[0033] Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. These embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein.

[0034] figure 1 A schematic flow diagram showing a method for multi-satellite joint positioning of a radiation source according to an embodiment of the present application, see figure 1 , the multiple satellites in the embodiment of the present application have overlapping working frequency bands, and the method for multi-satellite joint positioning of the radiation source in the embodiment of the present application includes ...

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Abstract

The invention discloses a method and device for jointly positioning a radiation source by multiple satellites and electronic equipment. For a non-correlation multi-satellite system with overlapped working frequency bands, time reference errors and frequency reference errors obtained by calibration of a plurality of satellites are firstly obtained, and then simulation forwarding and ground baseband synchronous sampling of radiation source signals in the overlapped working frequency bands are continuously carried out within a certain time span. And time difference and frequency difference processing is carried out on the radiation source signal, and finally, the time reference error and the frequency reference error are applied to realize high-precision radiation source positioning based on time difference or time-frequency difference. The problem of non-correlation multi-satellite joint high-precision positioning is solved, all available satellite resources such as communication satellites can be brought into a positioning system, and signal synchronous sampling is completed on the ground, so that signal synchronous sampling can be realized within a certain duration time span after single calibration. High-precision positioning of all radiation sources in the overlapped working frequency bands is realized, and the application range of the radiation sources is greatly expanded.

Description

technical field [0001] The present application relates to the technical field of radio positioning, in particular to a method, device and electronic equipment for multi-satellite joint positioning of radiation sources. Background technique [0002] Multi-satellite time difference (TDOA) or time frequency difference (TDOA / FDOA) positioning system is one of the means to obtain high-precision positioning of radiation sources. In general, this kind of positioning system is designed according to the multi-satellite formation from the beginning. The satellites have complex inter-satellite links and ultra-high stability rubidium clocks. The time reference and frequency reference of the positioning system are realized through the inter-satellite links. [0003] However, the reality may be that many satellites did not consider the application of multi-satellite positioning technology at the beginning of their design, but only used single-satellite positioning technology, resulting in...

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Application Information

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IPC IPC(8): G01S19/42
CPCG01S19/42Y02D30/70
Inventor 朱建丰何新生
Owner 36TH RES INST OF CETC
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