| CINRAD/CB脉冲多普勒天气雷达数字中频接收机 |
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| 引用本文： | 黄晓,裴翀.CINRAD/CB脉冲多普勒天气雷达数字中频接收机[J].气象科技,2005,33(5):464-468. |
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| 作者姓名： | 黄晓 裴翀 |
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| 作者单位： | 1. 新疆自治区气象局,乌鲁木齐,830002
2. 中国气象局大气探测技术中心,北京,100081 |
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| 摘 要： | 介绍CINRAD/CB脉冲多普勒天气雷达数字中频接收机的主要功能和技术性能.CINRAD/CB雷达接收机的主要特点是高灵敏、采用了数字中频采样、带AGC的大动态接收范围、低相噪频率综合器、在线测试、系统在线定标和整机性能的测量等技术,采用了高稳定频率源和全相干技术体制.简述了CINRAD/CB雷达接收机的组成和工作原理,给出接收系统的组成框图,对该系统接收机的灵敏度、噪声系数、动态范围等性能指标进行了分析.
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| 关 键 词： | 数字中频接收机 脉冲多普勒雷达 频率综合器 测试信号 脉冲多普勒天气雷达 数字中频接收机 雷达接收机 接收系统 技术性能 在线测试 组成框图 频率综合器 中频采样 |
| 收稿时间： | 2004-06-25 |
| 修稿时间： | 2004-08-04 |
IFD Receiver for CINRAD/CB Pulsed Doppler Weather Radar |
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| Huang Xiao,Pei Chong.IFD Receiver for CINRAD/CB Pulsed Doppler Weather Radar[J].Meteorological Science and Technology,2005,33(5):464-468. |
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| Authors: | Huang Xiao Pei Chong |
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| Institution: | 1 Xinjiang Provincial Meteorological Bureau,Urumqi 830002; 2 Atmospheric Observation Technology Center, Beijing 100081 |
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| Abstract: | The main functions and performance parameters of the IFD Receiver for CINRAD/CB Pulsed Doppler Weather Radar are presented.Techniques embedded in the receiver are IFD(Digitized Intermediate Frequency) ingestion with high sensitivity,highly dynamic range with AGC,low-phase noise frequency Synthesizer,on-line BITE test,real-time calibration.It is designed with the high-stability frequency source and COHO(Coherent Oscillator).The principles of IFD and the system frame receiver are also given.Analyses were made of the capability indicators such as the sensitivity,noise coefficient,and dynamic range.The pulsed Doppler weather radar is C-band weather radar and is currently used for monitoring severe weather in China. |
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| Keywords: | IFD receiver pulsed Doppler radar frequency synthesizer test signal |
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