Direction finding link calibration method and system

A technology of calibration system and calibration method, which is applied to the monitoring/testing of direction finders using radio waves and radio wave directional devices, can solve problems such as inconsistencies in direction finding processing results, poor accuracy, and signal deviations, and improve measurement accuracy. Direction accuracy, loss reduction, and standing wave optimal effect

Pending Publication Date: 2021-10-19
上海铂联通信技术有限公司
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Problems solved by technology

However, each direction-finding feeder link actually produced has different losses, which leads to deviations in the signal fed back to the direction-finding machine, which further causes the direction-finding processing results of the direction-finding machine to be inconsistent with the actual situation, and the accuracy is poor

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  • Direction finding link calibration method and system
  • Direction finding link calibration method and system
  • Direction finding link calibration method and system

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0046] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0047] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0048] The present invention provides a direction finding link calibration method, which is applied to a directi...

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Abstract

The invention relates to the field of communication direction finding, and in particular relates to a direction finding link calibration method and system. The method comprises the steps that S1 a transmitter transmits a calibration signal to a calibration unit; S2 the calibration unit feeds back a calibration signal to a receiver through a coupling unit and feed links; and S3 the receiver compensates the antenna signal received by each feed link according to the signal power of the feedback calibration signal. The technical scheme of the invention has the beneficial effects that the direction finding link calibration method and system are provided, which can (1) reduce the loss of the antenna signal in the transmission process, ensure the signal quality and improve the direction-finding accuracy; (2) simplify each functional part in the circuit design to the minimum, and reduce parasitic capacitance/inductance/resistance; (3) reduce the influence among the circuits to the minimum; and (4) enable the device to be optimal in combination with an actual PCB standing wave.

Description

technical field [0001] The invention relates to the field of communication direction finding, in particular to a direction finding link calibration method and system. Background technique [0002] In the prior art, during the direction finding process, a feeder link is usually set up to feed back the signal received by the antenna to the direction finding machine, and the direction finding machine performs direction finding processing according to the fed back signal. However, each direction-finding feeder link actually produced has different losses, which leads to deviations in the signal fed back to the direction-finding machine, which further causes the direction-finding processing results of the direction-finding machine to be inconsistent with the actual situation, and the accuracy is poor. Contents of the invention [0003] Aiming at the above-mentioned problems existing in the prior art, a method and system for calibrating a direction finding link are now provided. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S3/02
CPCG01S3/023
Inventor 张旭峰包宇
Owner 上海铂联通信技术有限公司
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