摘要
根据电磁缩尺模型理论,介绍电磁兼容性船模预测的理论和条件;推导了天线端感应电压、天线耦合度与缩尺比之间的关系;采用电波暗室作为船模预测的试验场地,进行天线方向图、天线耦合度(或隔离度)、近区场强等参数测试。由理论计算和大量试验分析得出:此方法用来确定舰船通信天线优化布置,了解电磁环境分布是正确可行的。采用虚拟仪器软件平台开发的船模自动测试系统,可实现在电波暗室内开展船模电磁兼容预测。
According to theory of electromagnetic scaled model, this paper introduces the theory and conditions of EMC ship model prediction, and deduces the relations of the scaled ratio to inducting voltage on the antenna terminal and antenna coupling. The antenna radiation pattern and antenna coupling or isolation as well as near electric field strength are measured by using anechoic chamber as the test site of ship model prediction. Through the comparison of theory computation with test results, it is concluded that it is correct and feasible to adopt this kind of method for determining communication antenna optimization arrangements and realizing the EME distribution. By using automatic test system based on virtual instrument software platform it is achieved to develop EMC ship model prediction in the anechoic chamber.
出处
《中国造船》
EI
CSCD
北大核心
2006年第2期42-49,共8页
Shipbuilding of China
关键词
船舶、舰船工程
电磁兼容性(EMC)
舰船缩尺模型
电波暗室
天线方向图
天线耦合度
近场
ship engineering
electromagnetic compatibility （EMC）
ship scaled model
anechoic chamber
antenna radiation pattern
antenna coupling
near electric filed
