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GPS-OTA closed-loop test method based on a Bluetooth air interface

A closed-loop test and GPS signal technology, applied in the field of GPS-OTA closed-loop test based on Bluetooth air interface, can solve the problem of large noise floor interference of integrated chips, and achieve the effect of solving self-interference, reliable transmission, and accurate test results

Inactive Publication Date: 2019-05-14
JIANGSU SEUIC TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a GPS-OTA closed-loop test method based on the Bluetooth air interface, which solves the technical problem that the integrated chip itself has a large noise floor when the GPS active antenna is tested

Method used

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  • GPS-OTA closed-loop test method based on a Bluetooth air interface
  • GPS-OTA closed-loop test method based on a Bluetooth air interface
  • GPS-OTA closed-loop test method based on a Bluetooth air interface

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Embodiment Construction

[0030] Such as Figure 1-Figure 4 Shown a kind of GPS-OTA closed-loop test method based on bluetooth air interface, comprises the following steps:

[0031] Step 1: Establish PC computer, auxiliary equipment to be tested, standard auxiliary equipment, GPS signal source, dual-polarized antenna, antenna switch, darkroom, equipment to be tested and standard equipment, PC computer, auxiliary equipment to be tested, standard auxiliary equipment, GPS The signal source and antenna switch are located outside the darkroom, and there are dual-polarized antennas, equipment under test and standard equipment inside the darkroom;

[0032] The auxiliary equipment to be tested and the standard auxiliary equipment communicate with the PC through two USB buses respectively;

[0033] Antenna switch and GPS signal source communicate with PC through GPIB interface;

[0034] The dual-polarized antenna is electrically connected to the antenna switch;

[0035] At present, WLAN / BT / GPS, etc. have bee...

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Abstract

The invention discloses a GPS-OTA closed-loop test method based on a Bluetooth air interface. Communication technology field, The method comprises the following steps: establishing a PC computer, auxiliary equipment to be tested, standard auxiliary equipment, a GPS signal source, a dual-polarized antenna, an antenna switch, a darkroom, equipment to be tested and standard equipment, enabling the PC, the auxiliary device to be tested, the standard auxiliary device, the GPS signal source and the antenna switch to be all arranged outside the darkroom and enabling the dual-polarized antenna, to-be-tested equipment and standard equipment to be arranged in the darkroom. The technical problem that the bottom noise interference of an integrated chip is large when a GPS active antenna is tested is solved. Test data is fed back in real time through Bluetooth to achieve closed-loop test, the problem of terminal interference is effectively solved, the test effect of more accurate test, higher precision and faster positioning time is achieved, and the method has the advantages of being reliable in transmission and low in static state transmission delay in wireless communication.

Description

technical field [0001] The invention belongs to the technical field of communication, in particular to a GPS-OTA closed-loop test method based on a bluetooth air interface. Background technique [0002] With the popularity of smart phones, GPS has become an essential function for smart terminal navigation, positioning and other services. Because GPS adopts satellite communication technology, GPS signal passes through atmospheric loss and some effects such as urban multipath effect, and the signal actually reaching the terminal is already very weak, which requires the receiver to have better performance. Therefore, it is very necessary to test the active antenna of the GPS wireless receiving system. [0003] At present, civil GPS mainly uses the L1 frequency band to provide support for terminal downlink communication services, and is mainly used in navigation, positioning, timing and speed measurement. This poses a challenge to the measurement scheme, because the single com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04W24/06
Inventor 蔡俊杰田晓明王正坤
Owner JIANGSU SEUIC TECH CO LTD
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