A METHOD FOR IMPROVING THE PROBING ABILITY OF DOPPLER WEATHER RADAR IN THE CLEAR AIR

Ge Runsheng; Zhu Xiaoyan; Jiang Haiyan

Vol.11, NO.3, 2000

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2000 > 11(3): 257-263

Ge Runsheng, Zhu Xiaoyan, Jiang Haiyan. A method for improving the probing ability of doppler weather radar in the clear air. J Appl Meteor Sci, 2000, 11(3): 257-263.

Citation:

Ge Runsheng, Zhu Xiaoyan, Jiang Haiyan. A method for improving the probing ability of doppler weather radar in the clear air. J Appl Meteor Sci, 2000, 11(3): 257-263.

Ge Runsheng, Zhu Xiaoyan, Jiang Haiyan. A method for improving the probing ability of doppler weather radar in the clear air. J Appl Meteor Sci, 2000, 11(3): 257-263.

Citation:

Ge Runsheng, Zhu Xiaoyan, Jiang Haiyan. A method for improving the probing ability of doppler weather radar in the clear air. J Appl Meteor Sci, 2000, 11(3): 257-263.

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A METHOD FOR IMPROVING THE PROBING ABILITY OF DOPPLER WEATHER RADAR IN THE CLEAR AIR

Chinese Academy of Meteorological Sciences, Beijing 100081

Received Date: 1999-07-07
Rev Recd Date: 1999-08-10
Publish Date: 2000-08-01

Abstract

Abstract

By analyzing the characteristics of echo signal in the clear air, a coherent integral method is presented, which can improve the probing ability of Doppler weather radar in the clear air, and the limit of the improved ability is calculated. Based on the study, the design of the radar signal processor is improved to be applicable to the detection in the clear air.
- Doppler weather radar;
- Coherent integral;
- Clear air

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References(8)

Figures and Tables

图 1 改进后的雷达信号处理器原理框图

(虚线部分为用于晴空探测的增加部分)

DownLoad: Full-Size Img PowerPoint

表 1 大气中C_n²值与其对应的等效反射率因子Z_eT

表 2 各种型号的新一代天气雷达的主要参数

表 3 新一代天气雷达最小可测等效反射率因子Z_emin (dBz) 随距离 (km) 的变化

表 4 S波段、C波段可进行相干累积的次数

References

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[3]	Beran D W and Wilfong T L. U. S. Wind profilers: AReview. FCM-R14-1998. Washington D C. 1998.
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