High-resolution river radar device based on phased array technology

Abstract

The invention relates to the field of river radars, and particularly relates to a high-resolution river radar device based on the phased array technology. The device comprises phased array antennas, an integrated case, and a power supply cabinet. The phased array antennas comprises a receiving antenna and a transmitting antenna. The integrated case is internally provided with a transmitting unit,a receiving unit, a signal generating unit, a beam forming unit, a signal processing unit, a data processing unit, a data transmitting unit, and a communication module. The transmitting unit comprisesa power amplifier, which amplifies input signals to the transmitting antenna. The receiving unit comprises 16 low noise amplifiers, which amplify the signals to the beam forming unit. And the beam forming unit comprises an A / D (Analog / Digital) sampling, an amplitude calibration, a phase calibration, and a beam steering calculation. According to the high-resolution river radar device based on thephased array technology, the device solves the technical defects in the prior art that the measurement takes a long time, that the cost is high, and that the risk coefficient is high. The invention provides a radar device with a short measuring time, a low measuring precision, a low cost, and a high safety.

Description

Technical field [0001] The invention relates to the field of river radars, in particular to a high-resolution river radar device based on phased array technology. Background technique [0002] The real-time flow of rivers is the most important data in hydrology, water resources management, and water conservancy projects, and is an important part of the construction of "smart hydrology". The flow rate monitoring of large rivers is an important part of data collection and data transmission in "smart hydrology". In traditional hydrology, older hydrologists stay at the hydrological station day and night, and are always ready to test and report. However, due to the constraints of climate, measurement methods, measurement safety, and response time, flow testing has always been a difficult point in today's hydrological measurement. Especially for the wide river surface above 1km or even above 5km, and the flow test of the intersection of large rivers and lakes or the ocean, it is a tas...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical defects of long measurement time, high cost and high risk factor in existing technical problems

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