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从膝上计算机到枪炮弹几乎无一不利用卫星全球定位系统(GPS),因而对电子反对抗措施(ECCM)的需求也就显而易见了.为加速下一代GPS安全系统的部署,位于洛杉矶美空军基地的NAVSTAR联合计划办公室(JPO)正在征求建议,加速GPS接收机应用模块选择性利用率/反欺骗模块(GRAASM,也称作GRAM—SAASM)的研制.空军JPO的GPS用户设备计划经理斯蒂芬·奥佩尔上校说,SAASM中已有了保密措施,下一步是通过降低GRAASM应用的潜在开发商的凤险来鼓励研制工作.鼓励性研制的策略是,建立由政府管制的接口控制文档(ICD),据此制定GRAASM和主应用设备之间数据流与物理接口的标准.JPO希望每一种独特的应用(战术无线电、炮弹、飞机等)都能获得多家投标商,接下来JPO将组织一个联合小组,其中包括政府和业界参与者,目的是制订一种通用方案——一份通用的ICD.奥佩尔上校将这种策略与个人电脑市场的发展策略作了比较.例如,可供个人电脑拥有者选择的存储卡有几十种,可
The need for electronic countermeasures (ECCM) is also apparent as almost everything from laptops to guns and shells makes use of the satellite global positioning system (GPS) To speed the deployment of next-generation GPS security systems, the Los Angeles-based U.S. Air Force The base’s NAVSTAR Joint Program Office (JPO) is seeking advice to accelerate the development of the GPS receiver module Selective Utilization / Anti-Fraudulent Module (GRAASM, also known as GRAM-SAASM). Stephen Air, Program Manager for GPS User Equipment at JPO Colonel Opper said SAASM already has security measures in place and the next step is to encourage research and development by reducing the risks of potential developers of GRAASM applications. The strategy for encouraging research is to establish a government controlled interface control document (ICD ), Which sets the standard for data flow and physical interfaces between GRAASM and the main application device.JPO expects to receive several bidders for each unique application (tactical radios, artillery shells, aircraft, etc.) and JPO will organize A joint group, including government and industry participants, aimed at developing a common program, a generic ICD, which Colonel Opper used in conjunction with the PC market Were compared development strategy. For example, for PC owners to select the memory card has dozens, may