相控阵天气雷达探测晴空回波能力分析

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Abstract In order to study the detection of clear air echoes with phased array weather radar, based on the the clear air echoes detected by current Doppler weather radar, this paper makes a statistics on clear air echoes' distance range, intensity and height etc, and establishes a general model of clear air echoes.Phased array weather radar has a high scan speed with a phase scanning strategy, which ensures the radar detection ability and range resolution by using pulse compression technique.Compared with the detectability of phased array weather radar that has no pulse compression technique, the results show that the pulse compression technique can effectively improve the ability of weak signal detection.On the basis of simulation analysis on the detection of clear air echoes by Doppler weather radar, compared with phased array weather radar using pulse compression technique, a conclusion is drawn out that the phased array weather radar can detect clear air echoes in the range of 50 km distance.

Key words： phased array weather radar clear air echoes pulse compression meteorological radar equation

Received: 29 January 2014

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	Articles by authors
	Yan Junchao
	Hu Mingbao

Cite this article:

Yan Junchao,Hu Mingbao. Detection on clear air echoes with phased array weather radar[J]. Meteorological Hydrological and Marine Instrument, 2014, 31(2): 19-23.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2014/V31/I2/19

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