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Quick cold starting method for GPS and big dipper second-generation dual mode satellite navigation receiver

A satellite navigation and cold-start technology, applied in satellite radio beacon positioning systems, measurement devices, instruments, etc., can solve the problems of high hardware cost, large computing storage, inability to apply multi-mode satellite systems, etc. The effect of shortening startup time and increasing hardware resource overhead

Active Publication Date: 2012-11-14
TECHTOTOP MICROELECTRONICS
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Problems solved by technology

[0011] The invention provides a fast cold start method for GPS and Beidou 2nd generation dual-mode satellite navigation receivers, which can solve the problems of high hardware cost, large calculation and storage capacity, and inapplicability to multi-mode satellite systems in the prior art, and Does not depend on other means of communication to support

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  • Quick cold starting method for GPS and big dipper second-generation dual mode satellite navigation receiver
  • Quick cold starting method for GPS and big dipper second-generation dual mode satellite navigation receiver

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Embodiment Construction

[0031] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0032] In this specific embodiment, the cold start control program module performs capture control on each capture channel, and is responsible for updating the status of each satellite, and judging whether the cold start is successful.

[0033] The cold start control program controls each acquisition channel to acquire and search satellites in parallel, and the search process of each channel is the same.

[0034] The working steps of the cold start control program are as follows:

[0035] Step 1: Initialize, initialize all geostationary orbit satellites in the Beidou 2 system as unsearched, and initialize all non-geostationary orbit satellites in the dual system (all satellites in the GPS system, non-geostationary orbit satellites in the Beidou 2 system) The states of all are initialized to "visible", and all non-geostationary orbit satellites in the d...

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Abstract

The invention relates to a quick cold starting method for a GPS (global position system) or a big dipper second-generation dual mode satellite navigation receiver, which comprises the following steps of: capturing all geostationary orbit satellites in a big dipper second-generation system, capturing non-geostationary orbit satellites in the GPS and the big dipper second-generation system, and modifying the visibility of satellites associated with the satellites. The cold starting algorithm provided by the invention can be applied to the GPS and the big dipper second-generation dual mode satellite navigation receiver, has low calculation quantity without increasing extra hardware cost, and improves the cold starting speed.

Description

technical field [0001] The invention relates to the technical field of GPS / Beidou 2nd generation dual-mode navigation satellite receivers, in particular to a cold start method of the dual-mode receiver. Background technique [0002] Global Navigation Satellite System (GNSS) has become one of the fastest-growing information industries after the Internet and mobile communications. All countries in the world are vigorously developing and building their own satellite navigation systems, such as GPS in the United States, GLONASS in Russia, GALILEO in Europe, and Beidou-2 system in China. With the construction of satellite navigation systems around the world, the advantages of the combination of various satellite systems in terms of performance, stability and application range have become increasingly significant, making it gradually become a research hotspot in the field of satellite navigation in recent years. Multi-frequency and multi-mode satellite navigation The comprehensiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/33G01S19/28
Inventor 曾毅陈永刚夏粮
Owner TECHTOTOP MICROELECTRONICS
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