AMS SIR-S航管二次监视雷达系统分析

摘要

航管二次监视雷达也称为空中交通管制雷达信标系统(ATCRBS)。它是空中交通管制系统的一个重要组成部分。本文主要分析意大利AMS(ALENIA MARCONI SYSTEM)公司SIR-S型二次雷达系统组成及工作原理。该系统基于分布式结构和开放式系统标准，在硬件和软件上都具有很大的扩充和升级能力。该系统包括了两个通道，每个通道包含有电源分配单元，回答处理和通道管理单元，S模式发射机，单脉冲接收机和旁瓣抑制接收机，每个通道安装在一个机柜，两个机柜并排放置，在机柜上方是通道转换单元。本地操作控制面板采用商用电脑，安装AMS公司相应软件。天线采用ALE-9型大孔径垂直阵列天线，使用双电机驱动方式。雷达头处理器使用了两台康柏阿尔法DS10服务器。另外该系统还配置了雷达维护监控电脑和本地控制监控系统。该系统具有较高的可靠性，重要单元均进行了冗余配置，主备单元均为在线和热备份工作方式。系统采用技术也较为先进，设备采用了单脉冲技术，本身在硬件上已具备S模式工作能力，需要在软件上进行升级即可，系统内各设备间采用了以太网连接，方便设备连接和加快了信息交流。%Secondary Surveillance Radar, also called Air Traffic Control Radar Beacon System(ATCRBS), is one important part of the Air Traffic Control System. SIR-S type Secondary Radar System made by Italian AMS (ALENIA MARCONI SYSTEM) Company is introduced in this paper. The system, based on the distributed structure and open system standard, has great ability of expansion and upgrading both on the hardware and software. There are two channels in the system. Each channel includes the power distribution unit, reply processing and channel managing unit, S mode transmitter, monopulse receiver and RSLS receiver. Besides, each channel is installed in a cabinet, the two cabinets are put side by side, and above the cabinet is the changeover unit. Local control panel adopts the commercial computer, in which is installed AMS Company's corresponding software. The antenna adopts the ALE-9 type large-aperture vertical-array antenna by the way of dual electrical machinery driving. The radar head processor uses two Compaq Alpha DS10 servers. Besides, this system equips radar maintenance monitor computer and local control monitor system. This system has more reliability. The important unit has been disposed with redundancy allocation, both master and slave unit are working on the online and hot backup. The system adopts advanced technology and the equipment adopts monopulse technology. It has already owned the working ability of S mode at hardware, just need upgrading in the software. Each equipment adopts Ethernet to connect with each other in the system, which has made the equipments connection convenient and accelerated the information exchange.