Airborne ultra-short wave antenna pattern UAV auxiliary test system

Abstract

The invention discloses an airborne ultra-short wave antenna pattern UAV auxiliary test system, and aims to provide a test method for solving the problem of radio frequency link and radio frequency compatible wireless related to an antenna of an outfield aircraft under a large maneuvering condition. According to the technical scheme of the invention, the method comprises the steps: according to adifferential GPS ground mobile station built by the unmanned plane, an airborne GPS antenna of an unmanned plane is used to transmits a frequency reference and GPS time to an embedded module and a signal source through a synchronous clock module; the embedded module sends an enable signal generated according to GPS time and position input by an airborne flight control system of the auxiliary unmanned aerial vehicle to the signal source and the airborne data link terminal, the ground terminal remotely controls the waveform of the signal emitted by the auxiliary unmanned aerial vehicle, and hovers or flies around according to the change height of the tested unmanned aerial vehicle; then the flight strategy of the auxiliary unmanned aerial vehicle is flexibly adjusted through the test turntable of the ground station terminal, and therefore, the directional diagram test of the to-be-tested airborne antenna at different pitch angles and azimuth angles is completed.

Description

technical field [0001] The present invention relates to the technical field of antenna testing, and more specifically relates to a method that can be applied to the field antenna test and verification of a large aircraft-mounted platform, using radio remote control equipment and a self-provided program control device to control the UAV, and realize the ultrashort wave antenna pattern test. Background technique [0002] Communications, radar, navigation, radio, television and other radio technology equipment all transmit information through radio waves, and all require the transmission and reception of radio waves. As an important part of the airborne radio frequency sensor system, the antenna pattern is an important index of the antenna, and its test verification has become an important work content in the development of the current engineering model. In order to achieve the best communication effect, the antenna must have a certain directionality, high conversion efficienc...

AI Technical Summary

Problems solved by technology

[0004] The present invention is aimed at the requirement of a large pitch angle for the current antenna test and verification of the whole machine, and verifies wireless technical indicators such as radio frequency link, radio frequency compatibility, and radio frequency stealth related to the antenna under large maneuvering conditions. The performance test problem of the airborne antenna under the condition of large maneuvering flight is to provide an auxiliary test system for the airborne ultrashort wave antenna pattern that can meet the large pitch angle gain index of the field antenna pattern of the whole machine, so as to solve the problem of the whole machine in the field under the condition of large maneuvering. Antenna-related radio frequency link, radio frequency compatibility, radio frequency stealth and other wireless test issues

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