Terminal power detection device and method in positioning system and field intensity meter

Abstract

The invention relates to a terminal power detection device in a positioning system, and the device comprises: an antenna which is used for receiving an air interface signal transmitted by a terminal; a low-noise amplifier which is used for performing low-noise amplification processing on the air interface signal; a filtering module which is used for carrying out frequency filtering on the air interface signal and reserving a specified frequency band in the air interface signal; a frequency shift module which is used for moving an air interface signal from radio frequency to a baseband; an analog-to-digital conversion module which is used for converting the air interface signal from an analog signal to a digital signal; and a logic processing module which is used for performing extraction, narrowband filtering, synchronous simplified operation and strategy processing on the air interface signal to obtain the power of the target terminal. The detection method is realized through the detection device. The field intensity meter comprises the detection device. According to the invention, the power of the terminal in the positioning system can be accurately obtained, so that the positioning system has strong anti-interference capability and high positioning precision.

Description

technical field [0001] The present disclosure relates to the technical field of positioning systems, and in particular to a detection device, method and field strength meter for terminal power in a positioning system. Background technique [0002] Positioning by using mobile communication base stations is a new direction in the development of mobile communication applications in recent years, and it is also an important direction in the research of the third generation of mobile communication. With the development of mobile communication technology, people have established a large number of communication base stations around the world. Using communication base stations as wireless positioning base stations has become a new way for mobile communication networks to provide LBS services, so that mobile communication terminals also have positioning functions, and further The cost of mobile positioning is reduced, and the practicability of mobile communication functions is enhanc...

AI Technical Summary

Problems solved by technology

[0004] Therefore, in the field strength positioning method, the power of the moving target is a key parameter that affects the positioning accuracy. In the prior art, the field strength meter is usually used to detect the power of the moving target. At present, the mainstream detection methods of the field strength meter are mostly simulation schemes and The digital power statistics scheme and the detector tube used in the analog scheme have the problems of inaccurate detection signal power and difficult detection of time-division signals, while the digital power statistics scheme has poor performance in receiving moving target signals, which leads to The weak anti-interference ability and low positioning accuracy of the strong positioning method have brought certain obstacles to the popularization and application of the field strength positioning method

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