Method for rapidly measuring amplitude and phase consistency of phased array weather radar

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

Active Publication Date: 2017-11-24
HUNAN EASTONE WASHON TECH CO LTD +1
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  • 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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  • Method for rapidly measuring amplitude and phase consistency of phased array weather radar
  • Method for rapidly measuring amplitude and phase consistency of phased array weather radar

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Experimental program
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Embodiment Construction

[0030] Concrete operating principle and method of the present invention are as follows:

[0031] 1. Launch channel test

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

[0033] single channel test

[0034] (1) Measure amplitude and phase difference

[0035] Control the transmitter of the w...

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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 channels is the basis of radar detection accuracy and power. To make the channels have good consistency, the first thing is to measure the channel amplitude difference and phase difference. But often this measurement takes a long time and costs a lot. Contents of the invention [0003] The purpose of the present invention is to provide a phased array weather radar rapid amplitude and phase consistency measurement method 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 phased array weather rada...

Claims

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Application Information

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