The Frontier software-defined radio for the solar probe plus mission
The Frontier software-defined radio for the solar probe plus mission
复制标题
用于太阳探测器+任务的 Frontier 软件定义无线电
DOI：
10.1109/aero.2016.7500770
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Joseph R. Hennawy
中科院分区：
文献类型：
--
作者：
C. Haskins;M. Angert;E. Joseph Sheehi;Wesley P. Millard;N. Adams;Joseph R. Hennawy
前沿无线电的最新改编，一个X/ ka波段的深空实施，已经转变为太阳探测器Plus （SPP）和未来任务的成品。利用技术准备水平（TRL） 9软件定义无线电（SDR）平台成功地在范艾伦探测器（VAP）任务中飞行，前沿无线电现在为深空应用带来了低功耗、低质量、高耐辐射和强大的SDR。这个实现带来了一套增强的功能和改进的前沿无线电平台。核心深空软件实现旨在匹配或改进信号采集和跟踪性能，并改善其前身（JHU/APL和工业）的接收和发送实现损耗。深空无线电在接收模式下，在30V下使用不到6W的功率，在启用X或ka波段激励器并在双向相干双工模式下工作时，使用大约10W的功率。根据航天器总线和任务要求，这些模式的功耗可以进一步降低到分别低至3W和9W。除了提供标准的深空导航功能，如双向多普勒、双向测距和差分单向测距（DOR）外，还对固件和软件进行了增强，以提高接收机的捕获和跟踪鲁棒性。软件增强在以下方面也是必不可少的：1)减少周转噪声对ka波段链路的影响；2)降低在连贯周转模式下运行时对下行链路帧错误率的影响。这些改进使科学返回和导航同时通过ka波段链路，以最小的实施损失。已经对硬件和测试平台进行了许多增强，以提高可制造性，降低制造和测试成本和周转时间，提高跨多个频段和应用程序的可移植性，并增加处理能力。零件选择提供至少100krads的总电离剂量（TID）公差，取决于制造时购买的零件，没有斑点或大块屏蔽。边境无线电提供了一个强大的选择单一事件缓解和故障保护技术。未来的深空任务，如木卫二快船计划利用前沿无线电。边疆无线电的单板版本也在开发中，用于立方体卫星和其他小型航天器，目前最佳估计（CBE）为1W接收模式和小于5W的双工模式，带有1W功率放大器；该实现利用了与父产品相同的健壮部件选择，并采用了简化的硬件实现，利用了高速信号转换和处理方面的进步。本文描述了前沿无线电目前在深空的能力，并提供了与该平台相关的未来努力的简短讨论。
The latest adaptation of the Frontier Radio, an X/Ka-band deep space implementation, has been transitioned into a finished product for Solar Probe Plus (SPP) and future missions. Leveraging the technology readiness level (TRL) 9 software-defined radio (SDR) platform successfully flown on the Van Allen Probes (VAP) mission, the Frontier Radio now brings a low-power, low-mass, yet highly radiation-tolerant and robust SDR to deep space applications. This implementation brings with it a suite of enhanced capabilities and improvements to the Frontier Radio platform. The core deep space software implementation is designed to match or improve upon the signal acquisition and tracking performance, as well as improve the receive and transmit implementation losses of its predecessors (JHU/APL and industry). The deep space radio operates using less than 6W at 30V in receive mode, and approximately 10W with either the X- or Ka-band exciter enabled and operating in two-way coherent duplex mode. The power consumption in these modes can be further reduced to as low as 3W and 9W respectively, depending on the spacecraft bus and mission requirements. In addition to providing standard deep space navigation features such as two-way Doppler, two-way ranging, and differential one-way ranging (DOR), firmware and software enhancements were made to improve the receiver acquisition and tracking robustness. A software enhancement was also essential in 1) reducing the effects of turnaround noise on the Ka-band link and 2) reducing the impact on downlink frame error rates while operating in a coherent turnaround mode. These improvements enable simultaneous science return and navigation over the Ka-band link with minimal implementation loss. A number of enhancements to the hardware and test platforms have been made to improve manufacturability, reduce manufacturing and test cost and turnaround time, improve portability across multiple frequency bands and applications, and increase processing capacity. The parts selection provides for a total ionizing dose (TID) tolerance of at least 100krads, subject to the parts purchased at time of manufacturing, without spot or bulk shielding. The Frontier Radio provides a robust selection of single event mitigation and fault protection techniques. Future deep space missions such as Europa Clipper plan to utilize the Frontier Radio. A single board version of the Frontier Radio is also under development for CubeSat and other small form factor spacecraft, with a current best estimate (CBE) of 1W receive mode and less than 5W duplex mode with a 1W power amplifier; this implementation leverages the same robust parts selection as the parent product, with a streamlined hardware implementation that leverages advancements in high speed signal conversion and processing. This paper describes the current capabilities of the Frontier Radio for deep space and provides a short discussion of future efforts related to the platform.