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GLONASS satellite orbit calculating method and system thereof

A technology of satellite orbit and calculation method, which is applied in the field of GLONASS satellite navigation system, and can solve the problems of high-efficiency positioning, long integration time, and occupation of CPU resources, etc.

Active Publication Date: 2016-03-30
惠州市峰华经纬科技有限公司
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, a longer integration time is required, and with the increase of the integration time, the amount of calculation increases, occupying a large amount of CPU resources, which does not meet the requirements of high-speed development and efficient positioning.

Method used

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  • GLONASS satellite orbit calculating method and system thereof
  • GLONASS satellite orbit calculating method and system thereof
  • GLONASS satellite orbit calculating method and system thereof

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Embodiment

[0050] Such as figure 1 , a kind of GLONASS high-efficiency orbit calculation system described in the present invention mainly has four components: a positioning receiver, a time judgment module, a GLONASS step-length integral orbit calculation module and a GLONASS high-efficiency orbit calculation module. The time judging module has the function of judging whether the reference time of the GLONASS satellite broadcast ephemeris has changed, and comparing the reference time with the satellite's current time value. When the satellite reference time changes, the time judgment module selects the GLONASS step-length integral orbit calculation module, and calculates the position and speed of the GLONASS satellite through multiple Runge-Kutta method integration; when the satellite reference time does not change, the time judgment module is faster than the satellite The size of the reference time and satellite launch time, if the current time is just greater than the reference time an...

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Abstract

The invention discloses a GLONASS satellite orbit calculating method and a system thereof. The method comprises the following steps of capturing a GLONASS satellite broadcast signal, converting into GLONASS satellite data and transmitting to a time determination module; determining whether satellite reference time tb in the GLONASS satellite data is different from current reference time tb of a positioning system, if the satellite reference time tb in the GLONASS satellite data is different from the current reference time tb of the positioning system, updating the reference time tb and satellite positioning data; otherwise, keeping using the reference time tb and the satellite positioning data; transmitting the GLONASS satellite data to a GLONASS step integration orbit calculation module and finally calculating a GLONASS satellite position and a speed; comparing satellite reference time to current satellite time, if the current time is greater than the satellite reference time and a difference is in one sampling epoch interval, recalibrating the GLONASS satellite position and the speed, otherwise, selecting a GLONASS high-efficiency orbit calculation module and finally calculating the GLONASS satellite position and the speed.

Description

technical field [0001] The invention relates to a GLONASS satellite navigation system (GLONASS), in particular to a method and system for supporting GLONASS satellite orbit calculation. Background technique [0002] With the continuous advancement of GLONASS modernization process, as of December 8, 2011, GLONASS has 24 satellites in orbit, and the system has resumed full operation. The GPS system provides all-weather positioning and timing services in real time around the world. With the repair and improvement of the GLONASS system, GPS / Beidou / GLONASS multi-mode integrated navigation and positioning has been more and more widely used. Multi-mode positioning has increased the number of observation satellites and improved The geometric distribution structure of satellites improves the accuracy and availability of positioning, so the research on GLONASS system has very important use value. Different from GPS and Beidou system, GLONASS satellite orbit calculation can use Euler ...

Claims

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Application Information

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IPC IPC(8): G01S19/27G01S19/28
CPCG01S19/27G01S19/28
Inventor 王峰朱海波黎博渊张智金钱瑞琦魏东明
Owner 惠州市峰华经纬科技有限公司
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