Double-linear polarization Doppler weather radar system

Abstract

The invention discloses a double-linear polarization Doppler weather radar system which comprises an outdoor part and an indoor part. The outdoor part comprises an antenna servo subsystem, a transmitting subsystem, a receiving subsystem, a monitoring calibration subsystem and a power distribution subsystem. The indoor part comprises a signal processing terminal and a user subsystem. According to the double-linear polarization Doppler weather radar system, the ingenious signal link design is adopted, the equipment quantity is reduced, and the reliability of the system is improved; a multi-channel signal processing mode is used, simultaneous measurement of all parameters of a double-linear Doppler weather radar is achieved, and the timeliness of detection data is improved; a signal processing technology based on a GPU is utilized, and the processing capacity of double-linear signals is enhanced; a unique two-channel full-path transmitting-receiving calibration technology is used, two-channel transmitting-receiving system errors of the radar system are reduced, and an effective guarantee is provided for improving the quality of the detection data.

Description

technical field [0001] The invention belongs to the technical field of weather radar. In particular, the present invention relates to a 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 signal link design, dual-channel calibration and real-time performance of parameter detection, so it is difficult to fully and effectively use the obtained detection data. Its disadvantages are as follows: [0003] (1) The signal system link design is complicated; [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 sys...

AI Technical Summary

Problems solved by technology

[0003] (1) The signal system link design 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 system upgrade and maintenance

[0007] 3. In the structural design of the prior art, the reflective surface of the antenna is exposed outside, without a protective cover, it is easily polluted, and the head-on wind resistance performance is relatively low

[0008] 4. No live video image acquisition function

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