Automatic test system of T/R assembly

Abstract

The invention relates to an automatic test system of T / R (Transmitter and Receiver) assemblies, and belongs to the technical field of radar detection devices. The system comprises a frequency synthesizer, a waveform generator, a four-in-one receiver, a communication controller, an autonomous software, and the like. The waveform generator is a direct digital synthesizer DDS. A clock signal source of the frequency synthesizer provides a working clock of 15MHz for the waveform generator, the communication controller, and an analog-to-digital converter. A local oscillator signal source provides local oscillator signals of the four-in-one receiver. An excitation signal source is used for providing an excitation signal and an analog echo signal for a tested T / R assembly through a through end ofa directional coupler and coaxial switches S1-S9. The excitation signal source provides a test signal for the tested T / R assembly through a coupling end of the directional coupler and a first power divider, and provides a reference signal for the system for system calibration. According to the automatic test system of the T / R assembly, switching of all channels and frequency points, data storage,calculation, and correction value writing can be automatically completed; human intervention is reduced; occupied instruments are few; the test is high in quality and efficiency; and the operate and maintain are convenient to be performed.

Description

technical field [0001] The invention relates to an automatic T / R component testing system, which belongs to the technical field of radar detection equipment. Background technique [0002] The T / R component is an indispensable core component of phased array radar, and its performance directly affects the working quality of the radar transceiver system. As the core component of the radar, the T / R component has a lot of performance indicators that must be checked and accepted. The test instruments involved in traditional testing of T / R component performance indicators include: power supply modules, spectrum analyzers, pulse vector network analyzers, signal sources, pulse generators, power meters, and computers; not only occupy a lot of instrumentation resources, but also these When the test instrument is used, it is necessary to manually calibrate the channel, set the parameters, switch the measured channel, calculate the correction value, write the correction value and record...

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Problems solved by technology

[0003] The purpose of the present invention is to address the deficiencies of the above-mentioned prior art, to provide a radar self-assembled, configured with a standardized universal interface and independent software, connected to a computer, a communication controller, and a spectrum analyzer through a router, which can automatically complete all channels and all Frequency point switching, data storage, calculation and correction value writing, greatly reducing human intervention, seldom occupying instrument resources, realizing large-scale, high-quality, high-efficiency testing, and an automated T / R component testing system that is easy to operate and maintain ; Solve the problems that traditional testing takes up a lot of instrumentation resources, manual intervention, heavy preparatory work, cumbersome testing operations and equipment maintenance, and low production efficiency

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