先进极高频系统提供可生存的抗干扰卫星通信，可在核冲突中实现安全通信。（洛克希德·马丁）

　　华盛顿消息：美国太空部队成功地为其受保护的卫星通信系统提供了五个计划中的软件更新中的第四个，使国际伙伴能够访问新功能。

　　先进的超高频系统为高优先级军事通信提供了可生存、受保护的抗干扰通信能力。作为MILSTAR的继任者，该星座旨在使美国总统、国家安全委员会和联合作战指挥官等高级军事领导人能够控制战略和战术力量，即使在核战争期间也是如此。第六颗也是最后一颗AEHF卫星于2020年3月发射升空。四个国际伙伴——加拿大、英国、荷兰和澳大利亚——也使用AEHF。

　　在 2015 年实现初始作战能力后，该计划的任务规划元素与洛克希德·马丁空间公司签约开发五个软件功能插入增量，为不断增长的用户提供额外的带宽和系统效率。前三个增量分别于2017年、2018年和2019年投入作战使用。

　　第六颗先进极高频卫星预计将于今年年底获得运行验收。

　　在7月21日的一份声明中，美国太空和导弹系统中心宣布，第四批增量已交付5月19日投入使用，作战基线于6月25日更新。最新的软件更新提供了任务的重新规划，并允许国际合作伙伴访问和控制卫星的协议消息。

　　“AEHF任务规划元素增强是美国太空部队以相关速度逐步向我们的战斗机守护者和国际伙伴提供实地作战能力的一个很好的例子，”洛马公司空间生产部门指挥和控制系统部高级物资主管芭芭拉·贝克说。

　　第五个也是最后一个增量正在开发中，预计将在2022年12月投入作战使用。SMC表示，该更新将提供加密规划、全球超高频超视线终端以及快速适应性规划和态势感知。

　　Space Force delivers software upgrades to satellite communications system

　　By Nathan Strout

　　Fri Jul 23 2021 03:51 AM

　　The Advanced Extremely High Frequency system provides survivable, anti-jam satellite communications that can allow secure communications through a nuclear conflict. （Lockheed Martin）

　　WASHINGTON — The U.S. Space Force successfully delivered the fourth of five planned software updates to its protected satellite communications system, enabling international partners to access new features.

　　The Advanced Extremely High Frequency system provides a survivable, protected, anti-jam signal for high-priority military communications. As the successor to MILSTAR, the constellation is designed to enable high-level military leaders such as the president, the National Security Council and unified combatant commanders to control strategic and tactical forces, even in the midst of a nuclear war. The sixth and final AEHF satellite was launched in March 2020. Four international partners — Canada, the United Kingdom, the Netherlands and Australia — also use AEHF.

　　After achieving initial operational capability in 2015, the program's Mission Planning Element contracted with Lockheed Martin Space to develop five software capability insertion increments to provide the additional bandwidth and system efficiencies for the growing number of users. The first three increments were operationally accepted in 2017, 2018 and 2019, respectively.

　　The sixth Advanced Extremely High Frequency satellites is expected to receive operational acceptance by the end of the year.

　　In a July 21 statement, the Space and Missile Systems Center announced that the fourth increment had been delivered to operations May 19, with the operational baseline updated on June 25. This latest software update provides endurance mission re-planning and allows international partners to access and control protocol messages for the satellites.

　　“The AEHF Mission Planning Element enhancements are a great example of the U.S. Space Force ability to incrementally field operational capability to our warfighter Guardians and international partners at the speed of relevance,” said Barbara Baker, senior materiel leader for the Space Production Corps Command and Control Systems Division.

　　The fifth and final increment is in development and is expected to be operationally accepted in December 2022. That update will provide crypto planning, Worldwide Extremely High Frequency Beyond-line-of-Sight Terminal and Rapid Adaptive Planning and Situational Awareness, according to SMC.