摘要
针对气象雷达天线电轴的标定问题,在研究以太阳为参照物标定雷达天线指向方法的基础上,以L inux平台设计实现了太阳法标定软件.软件设计主要从两方面缩短标定时间:利用雷达天线的高精度定位特性,通过预设天线的扫描区域以缩小扫描范围,从而缩短雷达搜索太阳位置耗费的时间;通过socket网络编程接口开发实现软件与雷达前端系统的数据传输,利用多线程机制以及UDP通信协议提高数据收发的实时性.运行结果表明该软件能够快速准确的完成对气象雷达天线的标定,并且在搜索太阳信号的过程中不需要人工干预,实现全自动搜索.
The software designed in this paper is used to calibrate the pointing accuracy of the weather radar antenna, and is applicable to the radar with high precision in antenna positioning. This method takes the sun as the reference object. The time of calibrating is shortened in two ways. The scanning scope of the weather radar is narrowed by setting the location of the radar antenna with theoretical position of the sun previously to shorten the searching time. The real-time data transmission between radar front-end system and the software is accomplished by using UDP muhicast mode and muhithreading mechanism. The software is developed in Eclipse IDE with Qt based on the Linux OS. The test results showed that the software meets the expected requirements. It can search the sun noise signal automatically.
出处
《南京师范大学学报（工程技术版）》
CAS
2009年第4期16-20,共5页
Journal of Nanjing Normal University(Engineering and Technology Edition)
