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Satellite borne navigation receiver time service method, time service type satellite borne navigation receiver and satellite borne navigation application system

A navigation receiver and satellite-borne technology, which is applied in the field of navigation receiver timing, can solve the problems of wide bandwidth and large noise of the navigation receiver loop, and achieve the effect of improving system reliability, clock error and frequency difference

Inactive Publication Date: 2015-06-03
TSINGHUA UNIV
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Problems solved by technology

However, in the orbiting satellite mobile communication system, since the host satellite runs at a speed close to the first cosmic speed, the loop bandwidth of the navigation receiver is wider and the noise is larger, which brings more problems than the traditional satellite navigation receiver for timing. Further Challenges for Navigation Receivers

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  • Satellite borne navigation receiver time service method, time service type satellite borne navigation receiver and satellite borne navigation application system
  • Satellite borne navigation receiver time service method, time service type satellite borne navigation receiver and satellite borne navigation application system
  • Satellite borne navigation receiver time service method, time service type satellite borne navigation receiver and satellite borne navigation application system

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Embodiment Construction

[0046] The timing method for the on-board navigation receiver and the timing-type on-board navigation receiver provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] see figure 1 , the embodiment of the present invention provides a kind of space-borne navigation receiver timing method, comprises the following steps:

[0048] S1, the on-board navigation receiver generates second pulse;

[0049]S2. The satellite-borne navigation receiver collects observation information in the navigation satellite signal at the rising edge of the second pulse, and the observation information includes satellite launch time and observation carrier phase;

[0050] S3, calculating the pseudorange according to the satellite launch time and the observed carrier phase as the observed pseudorange, constructing a solution equation, and obtaining the position, velocity, time, frequency difference and clock difference of...

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Abstract

The invention relates to a satellite borne navigation receiver time service method. The satellite borne navigation receiver time service method comprises the following steps: generating pulse per second; collecting a satellite launching moment and an observation carrier wave phase in a navigation satellite signal at an ascending edge of the pulse per second; calculating a pseudo-range according to the satellite launching moment and the observation carrier wave phase to be used as an observation pseudo-range to construct a resolving equation; resolving to obtain a position, a speed, time, frequency difference and clock difference of a satellite borne navigation receiver; carrying out quality improvement treatment on the frequency difference and the clock difference; adjusting the phase and the frequency of the pulse per second according to the improved frequency difference and clock difference so that the ascending edge of the pulse per second and a standard time second starting moment are synchronized; broadcasting the adjusted pulse per second to other electronic systems on a satellite; before the arrival of the next adjusted pulse per second, broadcasting the position, the speed and the time to the other electronic systems on the satellite; and generating and updating a telemetering quantity related to the time and giving a respond when the navigation satellite requires the corresponding telemetering quantity.

Description

technical field [0001] The invention relates to a navigation receiver timing method and system, in particular to a spaceborne navigation receiver timing method, a timing type spaceborne navigation receiver and a spaceborne navigation application system. Background technique [0002] Among various radio positioning technologies, the Global Navigation Satellite System (GNSS) is the most basic means. It is the full name of all navigation satellite systems, and currently mainly includes the Global Positioning System (GPS) of the United States. , Russia's Global Navigation Satellite System (Global Navigation Satellite System, GLONASS), Europe's Galileo system (Galileo), and China's Beidou (Compass). The basic working principle of the global navigation satellite system receiver is: receiving the radio signal sent by the navigation satellite and extracting the pseudo moment, carrier phase and other observations, and performing calculations based on the observations from more than 4...

Claims

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Application Information

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IPC IPC(8): G01S19/27G01S19/29G01S19/36
CPCG01S19/256G01S19/35G04R20/04G04R20/06
Inventor 陈曦王梦璐高文云
Owner TSINGHUA UNIV
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