Control device and control method for meteorological radar signal processing

Abstract

The invention discloses a control device and a control method for meteorological radar signal processing. The control device for meteorological radar signal processing comprises a radar video signal acquisition module, a clock sampling module, an FPGA (Field Programmable Gate Array) processor, a motor drive control circuit, a stepper motor driver, and a gigabit Ethernet communication module, wherein the radar video signal acquisition module comprises a differential operational amplifier and an ADC (Analog to Digital Converter) high-speed signal collector; the differential operational amplify and the clock sampling module are respectively connected with the ADC high-speed signal collector; and the ADC high-speed signal collector is connected with the FPGA processor. The control device can be used for carrying out real-time signal processing on portable radar signals, controlling radar antenna bearing pitch in real time, monitoring angle feedback information, global satellite positioning through a GPS (Global Positioning System), carrying out mutual transmission of high-speed data with an external upper computer, and controlling radar operation modes in real time; meets the requirements on basic settings and control of a radar; and has the advantages of simple structure, stability, reliability, complete functions, and convenience in operation.

Description

technical field [0001] The invention relates to an X-band weather radar signal processing and radar control device, in particular to a weather radar video signal processing and radar basic working mode control device, which is used for high-speed data acquisition and signal algorithm processing of portable X-band weather radar signals, radar High-speed data transfer between basic operation control, radar and computer. Background technique [0002] With the continuous development of my country's meteorological industry in recent years, weather radar has played a very important role in the process of cloud and rain monitoring, and portable weather radar can realize real-time monitoring of clouds and rain within a radius of 100KM, in real-time weather monitoring, flood relief and artificial influence Weather plays a major role. It also has the characteristics of high measurement accuracy, convenient movement of the radar station (radar weather vehicle), good stability, and simp...

AI Technical Summary

Problems solved by technology

[0003] At present, most weather radars sample the intermediate frequency of their echo signals to calculate information such as target distance, moving speed, and echo intensity, which leads to complex and difficult processing methods, and most of them are fixed stations without portable features.

Moreover, in the prior art, the negative level is converted into a positive level through the advanced signal inversion of the op amp, and then the signal amplitude is adjusted, that is, after two op amps, this also increases the possibility of introducing noise, and the adopted It is a single-ended input and output mode and cannot effectively suppress common-mode interference

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