X-band dual-polarization Doppler weather radar system

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...

AI Technical Summary

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 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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