Satellite signal shielding judgment method
A technology of satellite signals and satellite beacons, applied in satellite radio beacon positioning systems, measuring devices, instruments, etc., can solve problems such as star loss, occlusion, and tracking errors
Active Publication Date: 2021-07-06
AKD COMM TECH
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Problems solved by technology
When the satellite signal is blocked, it is difficult for the satellite antenna to use the beacon signal to correct the servo tracking system, resulting in problems such as losing the satellite and losing the lock
[0003]
Existing satellite antennas generally do not have the ability to judge whether the satellite signal received by itself is blocked and the degree of blocking, so the satellite antenna cannot judge whether the lost-lock and non-beacon signal is a tracking error or the signal is blocked, which affects the control of the antenna. The next step of the strategy is to reduce the accuracy and stability of the satellite antenna to find and follow the satellite, and affect the communication effect of the satellite antenna.
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[0033] Figure 1-3 and the following description describe alternative embodiments of the invention to teach those skilled in the art how to make and reproduce the invention. In order to teach the technical solutions of the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art should understand that modifications or substitutions from these embodiments will fall within the protection scope of the present invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. As such, the invention is not limited to the alternative embodiments described below, but only by the claims and their equivalents.
[0034] figure 1 A block diagram of a satellite antenna system according to one embodiment of the invention is shown. Such as figure 1 As shown, the satellite antenna system includes a sky communication component 101, a ground commun...
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The invention provides a satellite signal shielding judgment method. The method comprises the following steps: starting a satellite antenna; collecting n groups of satellite beacon signals, and recording the collection time and beacon signal intensity of each group of satellite beacon signals, wherein n is greater than 0; calculating a beacon variance according to the beacon signal intensity of the n groups of satellite beacon signals; collecting a current satellite beacon signal; and according to the current satellite beacon signal and the collection time thereof, the beacon variance and a preset beacon variance threshold value, determining a current satellite signal shielding condition. The method has the advantages that the signal shielding condition of the current position of the satellite antenna ground station can be judged, a basis is provided for satellite tracking, and the accuracy and efficiency of satellite finding and satellite following of the satellite antenna ground station are improved.
Description
technical field [0001] The invention relates to the field of satellite antenna control, in particular to a method for judging satellite signal occlusion. Background technique [0002] China's geographical environment is complex, and geological disasters are frequent, especially when earthquakes and floods occur, and the ground communication network is easily damaged. Satellite communication will be a very effective means of communication for emergency communication. Because the satellite antenna may be in various environments when in use, the signal blocking problem often occurs during the use of the satellite antenna. When the satellite signal is blocked, it is difficult for the satellite antenna to use the beacon signal to correct the servo tracking system, resulting in problems such as losing the satellite and losing the lock. [0003] Existing satellite antennas generally do not have the ability to judge whether the satellite signal received by itself is blocked and the...
Claims
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IPC IPC(8): G01S19/31G01S19/08
CPCG01S19/31G01S19/08Y02D30/70
Inventor 杨喜斌
Owner AKD COMM TECH