Digital control device based on microprocessor ARM (Advanced RISC Machines) and radar active calibrator

Abstract

The invention provides a digital control device based on a microprocessor ARM (Advanced RISC Machines), which is used for controlling a microwave assembly of a radar active calibrator works between a self-calibration mode and a transmission mode. Under the self-calibration mode, a gain of the microwave assembly is adjusted according to temperature data of a temperature monitoring module, and is compared with a reference signal inside the microwave assembly, so that the self-calibration of the microwave assembly is realized. Under the transmission mode, a radar signal is received in the microwave assembly through a receiving-transmitting antenna, and is transmitted to radar after being amplified through the microwave assembly. The equipment is radar active calibration equipment with convenience in outdoor work, stable property, high integration density and high precision.

Description

technical field [0001] The invention relates to the technical field of radar calibration for clutter testing, in particular to an ARM-based digital control device and a radar active calibrator. Background technique [0002] At present, when the radar system is used to record clutter data, in order to obtain the absolute value of the clutter data during subsequent data processing, it is necessary to perform real-time and effective calibration of the radar system. [0003] In general, calibration methods are divided into relative calibration and absolute calibration. Relative calibration is also called internal calibration. The transmit power and receive power are determined by measuring the loss or response function of each component of the system separately, or only the receive power and transmit power are calibrated. to calibrate the measurement system using the ratio method. Absolute calibration, also known as external calibration, uses the method of calibrating the calib...

AI Technical Summary

Problems solved by technology

Therefore, the common calibrator system is strongly dependent on the computer, and the actual calibration work cannot be performed without the computer or the communication with the computer is not smooth. The computer and its connecting cables are an indispensable part of the calibrator system, which will increase Equipment burden, power supply burden and risk of failure due to cabling

Moreover, the common radar active calibrator usually adopts the control method of mechanical buttons, which not only increases the connection cables between components, but also increases the complexity of the single-chip microcomputer program, and also increases the difficulty of calibrator maintenance.

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