A communication base station antenna azimuth monitoring method

An antenna azimuth and communication base station technology, applied in the field of satellite positioning and navigation, can solve the problems of high hardware cost, limited application scope and industrialization promotion, etc., and achieve the effect of reducing hardware cost and robust and high-precision base station antenna azimuth monitoring.

Active Publication Date: 2019-01-15
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Application Information

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Problems solved by technology

However, based on the current GNSS direction finding products, generally based on the dual-frequency scheme, the hardware cost is relatively high, which limits its application range and industrialization promotion

Method used

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  • A communication base station antenna azimuth monitoring method
  • A communication base station antenna azimuth monitoring method
  • A communication base station antenna azimuth monitoring method

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Embodiment Construction

[0051] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0052] figure 1 For the method system framework of the present invention, figure 2 It is a flow chart of dual-antenna GNSS direction finding solution, as shown in the figure, the method provided by the present invention specifically includes the following steps:

[0053] Step 1: Connect two satellite navigation modules to two satellite navigation antennas

[0054] The CPU controls the radio frequency switching switch, so that the two satellite navigation modules are connected to the two satellite navigation antennas installed on any base station antenna for the first time, and the two satellite navigation modules start to receive the single-frequency observation data of the navigation satellite in real time.

[0055] Step 2: Form the double-difference observation equation

[0056] The original pseudorange and carrier phase observations ...

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Abstract

The invention relates to a communication base station antenna azimuth angle monitoring method and belongs to the technical field of satellite positioning and navigation. The communication base station antenna azimuth angle monitoring method is based on two low-cost GNSS modules and multiple GNSS antennae, utilizes a GNSS single-frequency pseudo-range and a carrier phase observation value and adopts a sequential least square method to calculate a floating point solution of ambiguity, adopts a LAMBDA constraint method to calculate whole cycle ambiguity and obtain high-precision direction-finding information; meanwhile a radio frequency switching technique is adopted to obtain the direction information of the multiple GNSS antennae, and accordingly device cost is reduced. The method is based on the two low-cost single frequency satellite navigation modules, supports satellite navigation antennae installed on the multiple base station antennae, obtains the azimuth angle information of the base station antennae and can conduct real-time and online monitoring on the base station antennae, improve the network optimization level and reduce the maintenance cost.

Description

technical field [0001] The invention belongs to the technical field of satellite positioning and navigation, and relates to a method for monitoring the azimuth angle of a communication base station antenna. Background technique [0002] With the rapid development of mobile communication networks, the three major operators currently have more than 3.5 million antennas in stock. As time goes by, the functional parameters, antenna azimuth and elevation angles of base station antennas will change, which will lead to actual If the coverage area deviates from the planned range, the communication quality will be directly affected, especially in coastal typhoon-prone areas, where base station antennas change more frequently. Therefore, the real-time monitoring of the antenna azimuth angle is particularly important. However, due to the lack of effective monitoring means for its working status, the management of the working parameters of the base station antenna system has always been...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C1/00
CPCG01C1/00
Inventor 于兴旺洪昌萍卢艳娥
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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