X-band dual-polarization Doppler weather radar system

A dual-linear polarization and weather radar technology, applied in the field of weather radar, can solve problems such as imperfect calibration of dual-channel and polarization feeder networks, no on-site video image acquisition function, complex link mechanism of the signal system, etc., to achieve fast Simultaneous measurement, improved signal processing capability, and improved timeliness

Inactive Publication Date: 2016-01-13
WUHU HANGFEI SCI & TECH
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Problems solved by technology

[0003] (1) The link mechanism of the signal system is complex;
[0004] (2), receiving, transmitting dual-channel and polarized feeder network calibration is not perfect;
[0005] (3) The detection timeliness of dual polarization parameters (LDR) is poor
[0006] 2. The special DSP signal processing technology used in the existing signal ...

Method used

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  • X-band dual-polarization Doppler weather radar system
  • X-band dual-polarization Doppler weather radar system
  • X-band dual-polarization Doppler weather radar system

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Embodiment Construction

[0029] I. Overview:

[0030] Such as figure 1 , figure 2 The structure of the present invention shown is an X-band dual-linear polarization Doppler weather radar system, which consists of an external machine. The present invention has made outstanding progress in many technologies such as multi-carrier frequency signal link mechanism, four-channel signal processing technology, GPU-based signal processing technology, dual-channel full-path transceiver calibration technology, and on-site video image acquisition technology.

[0031] In order to solve the problems existing in the prior art and overcome its defects, realize the invention purpose of simplifying the equipment, improving the reliability of the system, improving the timeliness of the detection data and improving the processing ability of the signal, the technical scheme adopted by the present invention is as follows:

[0032] Such as image 3 As shown, in the dual linear polarization Doppler weather radar system, t...

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Abstract

The invention provides an X-band dual-polarization Doppler weather radar system which comprises two parts which are an outer machine and an inner machine. The outer machine part comprises an antenna server subsystem, a transmission subsystem, a receiving subsystem, a monitoring calibration subsystem, and a power distribution system. The inner machine part comprises a signal processor and a user subsystem. According to the system, an original signal chain design is employed, the amount of equipment is reduced, and the reliability of the system is improved. A mode of multi-channel signal processing is employed, the simultaneous measurement of all parameters of a dual-wire Doppler weather radar is realized, and the timeliness of detection data is improved. The GPU-based signal processing technology is employed, and the dual-wire signal processing ability is improved. The unique dual-channel full path transceiver calibration technology is employed, the dual-channel transceiver system error of the radar system is reduced, and the improvement of detection data quality is effectively ensured.

Description

technical field [0001] The invention belongs to the technical field of weather radar. Specifically, the invention relates to an X-band dual-linear polarization Doppler weather radar system. Background technique [0002] 1. X-band solid-state dual-linear polarization Doppler weather radar is a direction for the future development of weather radar. At present, the radar system has deficiencies in the signal link mechanism, dual-channel calibration and real-time parameter detection, so it is difficult to make full and effective use of the obtained detection data. Its disadvantages are as follows: [0003] (1) The link mechanism of the signal system is complex; [0004] (2), receiving, transmitting dual-channel and polarized feeder network calibration is not perfect; [0005] (3) The detection timeliness of dual polarization parameters (LDR) is poor. [0006] 2. The special DSP signal processing technology used in the existing signal processing brings inconvenience to the s...

Claims

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Application Information

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IPC IPC(8): G01S13/95G01S7/28G01S7/285G01S7/40G01S7/02
CPCG01S7/28G01S7/285G01S7/4008G01S7/4021G01S13/95G01S7/027Y02A90/10
Inventor 宋琪陈之典罗诗旭王宇航檀剑飞汪言康陈坤朱倩邓禹
Owner WUHU HANGFEI SCI & TECH
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