Abstract Exploration of the Solar System is constrained by interplanetary transfer technology. Current propulsion architectures do not allow for trajectories much faster than Hohmann transfers, implying elevated health risks and mission costs associated with multi-year human spaceflight missions and even longer robotic mission times. Proposed advanced nuclear and exotic systems involve immature component technologies and high degrees of complexity, cost, and risk. Breakthrough improvements may be possible with electric propulsion powered by directed energy, where a large-aperture laser phased array directs energy to photovoltaics on electric propulsion vehicles. Narrowband intensity gain over sunlight would lower onboard power system specific mass (kg/kW) to enable fast Solar System missions without advanced nuclear or exotic power and propulsion systems. The proposed architecture is modular and offers scalability from nanosatellites to human missions, with opportunities for operational systems and Solar System exploration along a technology development roadmap.

中文翻译：

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以定向能量为动力的电力推进快速太阳能系统运输

摘要 太阳系探索受到行星际转移技术的制约。当前的推进架构不允许比霍曼转移快得多的轨迹，这意味着与多年载人航天任务甚至更长的机器人任务时间相关的健康风险和任务成本增加。提议的先进核和外来系统涉及不成熟的组件技术和高度的复杂性、成本和风险。由定向能量驱动的电力推进可能会取得突破性的改进，其中大孔径激光相控阵将能量引导至电力推进车辆上的光伏发电。太阳光上的窄带强度增益将降低机载电力系统的比质量（kg/kW），从而在没有先进核或外来动力和推进系统的情况下实现快速的太阳系任务。拟议的架构是模块化的，提供从纳米卫星到载人任务的可扩展性，并有机会沿着技术发展路线图进行操作系统和太阳系探索。