Multipath interference recognition processing method and device using outdoor antenna gain testing

Abstract

The invention relates to the technical field of antenna testing, and discloses a multipath interference recognition processing method and device using outdoor antenna gain testing. The multipath interference recognition processing device used by the method is provided with a signal generating device capable of generating CW signals, wherein the signal generating device is connected with a transmitting antenna on a lifting rack of an antenna lifting platform through a first adapter, the transmitting antenna is connected with a receiving antenna through radio waves, the receiving antenna is opposite to the transmitting antenna, is as high as the transmitting antenna and is fixed on the lifting rack of the antenna lifting platform, and the receiving antenna is connected with a gain processing device through a second adapter, a signal receiving device and a multipath interference separation and recognition device. By the adoption of the method and device, the problems of recognition, separation and interference loss calculation of multipath signals at the receiving antenna end are solved, the gain precision of tested antennas can be calibrated according to different antenna measuring methods, the problems of propagation path separation and interference recognition are also solved, the influence of multipath interference is eliminated, the strict requirements for antenna testing sites are lowered, and great practical value is achieved in scientific research tests and production practice.

Description

technical field [0001] The invention relates to the technical field of antenna testing, in particular to a method and device for identifying and processing multipath interference identification in outdoor antenna gain testing. Background technique [0002] At present, in all kinds of traditional outdoor antenna test sites, due to the influence of factors such as site, terrain, ground objects, antenna height, and different wavelengths of signals, multipath interference at the antenna receiving end is inevitable. There are fluctuations in the antenna gain measurement value of each sub-frequency point in the operating frequency band of the antenna under test, and the reliability of the measured results is greatly reduced. Current outdoor antenna gain measurement setups do not have a way to eliminate such effects. [0003] At present, in various outdoor antenna test sites, due to the influence of different factors such as site, terrain, ground objects, antenna height, signal wa...

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Problems solved by technology

[0010] In the above test results, there will be singular points that are greatly different from the true value caused by multipath interference, which will greatly reduce the accuracy of the antenna test and reduce the reliability.

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