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Star search method

A star-seeking and azimuth technology, applied in the field of star-seeking, can solve the problems of high installation accuracy, high cost, interference, etc., and achieve the effect of low installation requirements, fast star-finding, and convenient debugging

Inactive Publication Date: 2009-10-21
上海杰盛无线通讯设备有限公司
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Problems solved by technology

But there are the following disadvantages: high cost; large volume; azimuth measurement is extremely susceptible to many aspects including geomagnetism, metal equipment, weather, etc., and while affecting azimuth, it will also cause interference to the other two values. For this reason, the device cannot be directly installed on the metal antenna surface, and the actual angle value can only be calculated indirectly by measuring the antenna attitude; at the same time, the installation accuracy is required to be high

Method used

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  • Star search method

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Embodiment Construction

[0035] Please refer to the accompanying drawings, the present invention provides a method for finding stars, comprising the following steps:

[0036] (1) Calculate the space coordinates corresponding to the equipment according to the GPS data and the latitude and longitude of the target satellite;

[0037] (2) Quickly adjust the antenna arm to reach the adjustment point according to the theoretical values ​​of the polarization, azimuth, and pitch of the antenna;

[0038] (3) The azimuth star search range is set to 4 degrees, and the pitch star search range is set to 2 degrees;

[0039] (4) Implement star-seeking plan 1: start the rough-adjustment star-seeking process, compare the beacon signal level, and record the maximum beacon signal value and its corresponding azimuth and elevation angle values;

[0040] (5) Judging whether the current maximum signal is a valid satellite signal?

[0041] (6) If yes, enter the fine-tuning star-seeking process and tracking mode; if not, en...

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Abstract

The invention relates to a star search method, which comprises three coarse adjustment star search proposals, a fine adjustment star search proposal and a tracking mode. The star search method has the advantages of low cost, low mounting requirement, convenient debugging, capacity of acquiring the orientation and a pitch angle value of an antenna in real time, no interference by external factors such as weather or geomagnetism and the like, and quick, accurate and stable star search.

Description

technical field [0001] The invention relates to a method for finding stars, in particular to a method for finding stars by using an inclinometer. Background technique [0002] At present, the electronic compass is usually used to locate the attitude of the antenna in 3 axes, and at the same time, a specific algorithm is used to obtain the three angle values ​​of the antenna's azimuth, pitch, and roll. However, there are the following disadvantages: high cost; large volume; azimuth measurement is extremely susceptible to influences including geomagnetism, metal equipment, weather, etc., and while affecting azimuth, it will also cause interference to the other two values. For this reason, the device cannot be directly installed on the metal antenna surface, and the actual angle value can only be calculated indirectly by measuring the antenna attitude; at the same time, the installation accuracy is required to be high. Contents of the invention [0003] The technical problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02G01C1/00
Inventor 杜烽
Owner 上海杰盛无线通讯设备有限公司
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