LKabel coding antenna reflection coefficient measuring method

Abstract

The invention relates to a label coding antenna reflection coefficient measuring method. In the field of structural health detection, structural changes of a building can be judged and predicted through parameter changes of sensors arranged on the building. A vector network analyzer is mostly used for measuring and collecting parameters of a traditional sensor. The invention provides a reflection coefficient measuring method of a label coding antenna device based on a universal software radio peripheral (USRP) platform. According to the method, on the basis of the software and hardware platform, in cooperation with devices such as a directional coupler, parameter measurement is carried out on the label coding antenna pasted on the building through configuration of the USRP at the software end and subsequent data processing. Compared with a measurement scheme of a traditional vector network analyzer, the method has the advantages that the experiment flexibility can be improved, meanwhile, more characteristic parameters influencing the health factors of the building structure can be mastered, and the health degree of the building structure can be analyzed more reasonably.

Description

technical field [0001] The invention relates to the field of parameter measurement of tag-encoded antennas of high-frequency electronic circuits. [0002] technical background [0003] In traditional antenna design, people generally pay more attention to the performance of the antenna, so more emphasis is placed on the design of the antenna function, and a vector network analyzer is often used for testing in the process of parameter testing. On the one hand, this kind of test can indeed guarantee the accuracy of the test results, but on the other hand, due to the relative invariance of the test environment and methods, it lacks some flexibility. The measurement algorithm is ported into it. On the other hand, in some more complex test scenarios, using a network analyzer may be inconvenient. [0004] In addition, due to the advancement of smart sensor technology, it has gradually become a trend to use antenna sensors for SHM (structural health monitoring) and embed them in th...

AI Technical Summary

Problems solved by technology

In an application scenario like this, since the antenna sensor itself is pasted on the building, if you continue to use the VNA as a measurement tool, it will inevitably cause a lot of inconvenience

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