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Multiple-mode positioning signal source system

A positioning signal and multi-mode technology, applied in positioning, radio wave beacon system, radio wave measurement system, etc., to achieve high-precision three-dimensional positioning and realize the effect of three-dimensional positioning accuracy

Inactive Publication Date: 2009-04-15
上海申羿信息技术有限公司
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Problems solved by technology

Therefore, the current GPS pseudolite is just a simulated transmitter similar to GPS signals

Method used

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  • Multiple-mode positioning signal source system
  • Multiple-mode positioning signal source system

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Embodiment Construction

[0046] refer to figure 2 , the application method of the multi-mode positioning signal source in the navigation and positioning system is as follows:

[0047](1) Easy to express, taking GPS as an example (supporting GPS / Beidou / Galileo / GLONASS), the multi-mode positioning signal source receives the signals of GPS satellites, performs synchronous correction inside the positioning signal source and then transmits GPS-like signals, so that it can Realize the function of integrating into the GPS system and serving as a signal source.

[0048] (2) After the system enters the working state, the signal receiving unit receives the high-precision position signal where the multi-mode positioning signal source is located, and can also extract the 1PPS second pulse signal; the GPS / Beidou / Galileo / GLONASS set through the transceiver integrated main control platform The generated signal and navigation signal are injected into the signal transmitting unit, and the multi-mode signal processin...

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Abstract

The invention discloses a system which can be used not only as a positioning signal emission source but also as positioning signal synchronization under the high dynamic environment. The system comprises main functional modules of at least a GPS / Northern Dipper / Galileo / GLONASS signal receiving unit, a positioning signal source signal emitting unit, a transceiving master control platform, reception control software and the like, and the main functional modules are integrated into a system unity of a multi-mode positioning signal source. The 1PPS of the receiving unit is prospectively integrated with the design of the positioning signal source, and the time synchronization problem of the multi-mode positioning signal source is solved in the system; in virtue of the transceiving master control platform, the current coordinate of the positioning signal source can be input in real time, and the signal can be launched or reflected by data processing. The system is a new method of the positioning signal source technology in the expanding research and system design in the space navigation positioning field.

Description

Technical field: [0001] The invention belongs to the technical field of autonomous navigation and positioning of spacecraft, and specifically refers to a system that can be used not only as a source of positioning signal emission but also as a signal receiving and processing system. The multi-mode positioning signal source system is suitable for independent positioning systems or joint positioning systems in environments such as fixed installation on the ground, airborne / ball-borne / satellite, and near space, and completes flexible and multi-mode navigation and positioning applications. Background technique: [0002] In the past ten years, people have done a lot of exploration on pseudolites, and developed a variety of positioning signal source equipment to enhance the effectiveness, reliability, integrity and accuracy of GPS positioning. For example, the deformation monitoring of dams and bridges, aircraft approach and landing and some precision applications, and the use of ...

Claims

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Application Information

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IPC IPC(8): G01S1/04G01S5/02G01S5/14
Inventor 张雷王建宇戴宁
Owner 上海申羿信息技术有限公司
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