An anti-jamming satellite positioning device coupled with multiple positioning systems
A satellite positioning and positioning system technology, applied in the field of satellite positioning, can solve problems such as the decrease in the number of satellites received, the deterioration of satellite reception conditions, and difficulty in receiving satellite signals, so as to improve accuracy and anti-interference ability, improve stability and anti-interference. sex, the effect of eliminating mutations in location data
Active Publication Date: 2022-03-15
天津仁爱学院 +1
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However, the normal-constrained anti-jamming mode is difficult to receive satellite signals with low elevation angles, and the total number of received satellites decreases. Especially when the antenna front is tilted, the satellite receiving situation will further deteriorate, which will affect the anti-jamming performance
The normal gain of the array in the unconstrained anti-jamming mode is not as good as that in the normal constrained anti-jamming mode, and once the main antenna fails, normal satellite reception cannot be guaranteed
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[0024] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.
[0025] For ease of understanding, the following is a detailed introduction to an anti-jamming satellite positioning device coupled with multiple positioning systems provided by the embodiment of the present application, see figure 2 , an anti-interference satellite positioning device coupled with multiple positioning systems, comprisin...
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This application relates to an anti-jamming satellite positioning device coupled with multiple positioning systems, including an integrated processor chip, an inertial navigation chip and a satellite positioning chip on a PCB substrate. A satellite positioning chip is connected to a satellite receiving antenna to form a satellite positioning system. The processor The chip is configured to: calculate the satellite signal-to-noise ratio of each satellite positioning system, and select the satellite positioning system with the largest signal-to-noise ratio exceeding the first preset threshold as the main positioning system, and other satellite positioning systems as the alternative positioning system; determine If the number of satellites in the main positioning system is lower than the first preset number, switch an alternative positioning system to the new main positioning system, and select a reliable system from other alternative positioning systems; The system and the satellite positioning data of the reliable system are calculated by decreasing the difference to obtain real-time positioning data. The device can reduce the gap of positioning data between different systems and realize smooth switching of positioning systems.
Description
technical field [0001] The present application relates to the technical field of satellite positioning, in particular to an anti-jamming satellite positioning device coupled with multiple positioning systems. Background technique [0002] In the satellite navigation receiving system, because the power of the satellite navigation signal reaching the ground is relatively weak, it is easy to be submerged under the noise, and the signal-to-noise ratio entering the receiver is generally very low, so the satellite navigation system is susceptible to interference from complex electromagnetic environments or man-made interference. [0003] At present, satellite positioning anti-jamming technology often uses antenna arrays to receive satellite navigation signals, such as normal constraint anti-jamming mode and unconstrained anti-jamming mode. However, the normal-constrained anti-jamming mode is difficult to receive satellite signals with low elevation angles, and the total number of...
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IPC IPC(8): G01S19/49G01S19/42G01S19/21
CPCG01S19/49G01S19/423G01S19/21
Inventor 潘牧袁铁彪陈淑鑫么大锁张娟
Owner 天津仁爱学院
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