Device and method for testing T/R module of phased array radar

Abstract

The invention relates to a device and a method for testing the T / R module of phased array radar. The T / R module comprises multiple channels. The device comprises a multi-channel matrix switch corresponding to the multiple channels and used for connecting a selected channel into a test circuit, an industrial tablet computer used for selecting a test channel and test indicators and selecting a matrix switch path corresponding to the test channel, a calibration source used for outputting a calibration signal to the test channel and generating a local oscillation signal, a receiver used for receiving the calibration signal passing through the test channel and the matrix switch path and the local oscillation signal from the calibration source, attenuating the calibration signal, mixing the calibration signal with the local oscillation signal and converting the mixed signal into a digital signal, and a processing board used for receiving the digital signal, acquiring the amplitude and phaseof the test channel according to the digital signal and transmitting the amplitude and phase to the industrial tablet computer, wherein the industrial tablet computer is further used for judging the test result of the test channel under the test indicators according to the amplitude and phase.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a device and a method for testing a T / R component of a phased array radar. Background technique [0002] Phased array radar is in the mainstream trend of radar research and development in the world today. Phased array radar is composed of radar T / R component, antenna unit and passive feeder system. In phased array radar, T / R component is a core component. The antenna unit of the phased array radar adjusts the power amplification of the transmitted signal and the low noise amplification of the received signal as well as the amplitude and phase through the T / R component, so as to complete the spatial synthesis of the transmitted and received beams. Phased array radar systems using a large number of T / R components will play an increasingly important role in future airborne, spaceborne and missile-borne applications. [0003] Phased array radar achieves beamforming and control by pre...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above technical problems, the present invention provides a device and method for testing T / R components of phased array radars, which solves the problems of carrying and testing the test equipment when testing T / R components in the field, and Greatly improve the efficiency of testing T / R components and shorten the testing time

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