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Fast Amplitude and Phase Consistency Measurement Method for Phased Array Weather Radar

A weather radar and measurement method technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as amplitude difference and phase difference

Active Publication Date: 2020-04-10
HUNAN EASTONE WASHON TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a phased array weather radar fast amplitude, phase consistency measurement method to solve the technical problems of quickly and simply measuring the amplitude difference and phase difference between channels

Method used

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  • Fast Amplitude and Phase Consistency Measurement Method for Phased Array Weather Radar
  • Fast Amplitude and Phase Consistency Measurement Method for Phased Array Weather Radar

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The concrete working principle and method of the present invention are as follows:

[0031] 1. Transmission channel test

[0032] The transmission channel test is mainly used to test the amplitude and phase consistency of the transmission channel from the wave control to the antenna. use figure 1 Test method shown. The offset-feed parabolic antenna and the phased array antenna are separated by a certain distance (about a few meters) in space, and the normal of the phased array antenna array should coincide with the axis of the parabolic antenna. The radio frequency signal emitted by the antenna of the whole machine under test is converged to the feed source through the paraboloid, connected to the vector network instrument through the attenuator, and the other end of the vector network meter is connected to the radio frequency signal sent by the whole machine under test.

[0033] single channel test

[0034] (1) Measuring amplitude and phase difference

[0035] Con...

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PUM

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Abstract

The invention discloses a method for rapidly measuring the amplitude and phase consistency of a phased array weather radar. The method for rapidly measuring the amplitude and phase consistency of the phased array weather radar comprises the following steps: 1, testing a transmitting channel, and testing consistency from a waveform controller to the amplitude and phase of the transmitting channel of the antenna, wherein testing contents include (1), measurement of amplitude and phase difference, (2), correction of amplitude and phase, and (3), acquisition of standard of automatic calibration; and 2, testing a receiving channel, and measuring amplitude and phase from an antenna to an intermediate frequency receiving channel, wherein testing contents include (1), measurement of amplitude and phase, (2) correction of amplitude and phase, and (3) acquisition of the standard of automatic calibration. The amplitude difference and the phase difference of the channel can be measured rapidly and simply.

Description

technical field [0001] The invention relates to a phased array weather radar technology. Background technique [0002] Phased array weather radar is a radar with multiple receiving and transmitting channels. The phase and amplitude consistency between each channel is the basis of radar detection accuracy and power. To make the channel have good consistency, the first thing is to measure the channel. Amplitude difference and phase difference. But often this kind of measurement takes longer time and higher cost. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a fast amplitude and phase consistency measurement method for a phased array weather radar, so as to solve the technical problems of quickly and simply measuring the amplitude difference and phase difference between channels. [0004] In order to realize the above-mentioned purpose of the invention, the technical scheme adopted in the present invention is as follows: [0005] A fa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/40
CPCG01S7/40
Inventor 马舒庆
Owner HUNAN EASTONE WASHON TECH CO LTD