Device and method for improving anti-interference performance of terminal
A terminal and performance technology, applied in the fields of filtering technology, signal transmission method and device, satellite navigation, and antenna unit, can solve problems such as the performance degradation of the terminal satellite navigation function, improve the interference and positioning performance, improve the received power, The effect of improving the anti-interference performance
Pending Publication Date: 2020-09-18
刘芸鹤 +1
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[0005] The patent of the present invention provides a device and method for improving the anti-interference performance of the terminal, which solves the problem that the satellite navigation function of the terminal is easily interfered by internal and external factors in the terminal and then the performance declines in the current technology.
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[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the specific solutions of the invention will be further described in detail below in conjunction with the drawings in the embodiments of the present invention.
[0029] Satellite navigation and positioning technology is a navigation and positioning technology for daily use. It has the functions of all-weather, wide coverage, three-dimensional positioning, speed measurement, and positioning. It has the advantages of high positioning accuracy and fast speed, and has become a very important function necessary for mobile terminals. At present, it is known that the terminal usually uses a star navigation antenna to receive satellite signals. Due to the long distance and weak signal, it is easily interfered by the main radio frequency of the terminal's internal communication and external environmental interference signals. When the signal strength is relativ...
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The invention discloses a device and method for improving the anti-interference performance of a terminal, a circuit, the terminal and an antenna unit. A signal transmission method comprises the following steps: receiving a radio frequency signal; when it is determined that the radio frequency signal is less than a set threshold value, increasing the number of receiving channels of the radio frequency signal to four; and if an interference signal exceeds a threshold value, starting a self-adaptive filter circuit. According to the signal transmission method, the number of the radio frequency channels and the filter circuit are automatically adjusted according to the magnitude of the current radio frequency signal, so that the receiving power is improved, the interference signal is reduced,and the anti-interference performance and the positioning performance of the mobile terminal in a severe environment are improved.
Description
technical field [0001] The patent of the present invention belongs to the field of mobile intelligent terminals, and relates to satellite navigation technology, especially signal transmission method and device, antenna unit, and filtering technology. Background technique [0002] At present, the satellite navigation function of smart phones has become one of the necessary functions. Common mobile phones basically use a separate satellite navigation antenna for positioning. The position of the satellite navigation antenna is relatively fixed, and the receiving scheme is a fixed circuit. Satellite navigation and positioning technology is a navigation and positioning technology for daily use. It has the functions of all-weather, wide coverage, three-dimensional positioning, speed measurement, and positioning. It has the advantages of high positioning accuracy and fast speed, and has become a very important function necessary for mobile terminals. [0003] With the development o...
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IPC IPC(8): H04B1/12H04B7/08G01S19/37G01S19/36G01S19/21
CPCG01S19/21G01S19/36G01S19/37H04B1/126H04B7/0814H04B7/0825
Inventor 孙睿刘芸鹤
Owner 刘芸鹤