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前言用于探测地球卫星的美国海军对空监视系统,形成横跨在美国南部的一个警戒网。此警戒网由四个接收站和三个连续波发射站组成,发射站分别配置在接收站之间。发射机和接收机都使用扇型共面天线,其波束东西方向宽,南北方向窄。由连续波发射机照射卫星,接收站用无线电干涉仪测定卫星在东西和南北平面中的位置。接收站分别设置在西部的加利福尼亚州的圣地亚哥、新墨西哥州的象山和东部的密西西比州的银湖、乔治亚州的斯图尔特堡(图1)。数据传递系统由华盛顿海军研究实验室与各接收站联接,并
Introduction The U.S. Navy air surveillance system used to detect Earth satellites forms an alert network across southern United States. This warning net consists of four receiving stations and three continuous wave transmitting stations, and the transmitting stations are respectively arranged between receiving stations. Both the transmitter and the receiver use a fan-shaped coplanar antenna, which has a wide east-west and a narrow north-south orientation. The continuous wave transmitter is used to illuminate the satellite. The receiving station uses a radio interferometer to determine the position of the satellite in the east-west and north-south planes. Receiving stations are located in San Diego, California in the west, Xiangshan in New Mexico and Silver Lake in Mississippi in the east, and Fort Stewart, Georgia (Figure 1). The data transfer system is linked to the receiving stations by the Washington Naval Research Laboratory and