面向火星探测的新一代微波着陆雷达技术

A new generation of microwave landing radar technology for Mars exploration

为适应我国火星探测任务,在探月着陆雷达研制的基础上研制出新一代的火星着陆雷达。介绍了国外火星着陆雷达的现状和实现指标,分析了国内火星探测任务中微波着陆雷达的关键点,尤其针对火星风沙尘暴、大角速度和复杂着陆地形的特征采取了综合试验验证方法,取得了关键数据。针对火星着陆雷达严苛的性能指标要求,创新性地采用线性调频连续波的着陆雷达体制以及选取新的系统设计参数,经过256次打靶测试验证,能够满足我国火星探测任务的需求。

In order to adapt to China's Mars exploration mission,a new generation of Mars landing radar is developed on the basis of the lunar landing radar.In this paper,the status of foreign Mars landing radar and its implementation indexes are introduced,the key points of microwave landing radar in domestic Mars exploration mission are analyzed,especially for the characteristics of Mars wind and dust storm,large angular velocity and complex landing terrain,the comprehensive test verification method is adopted and the key data are obtained.Aiming at the strict performance requirements of Mars landing radar,this paper innovatively adopts the LFM continuous wave landing radar system and selects new system design parameters,which has been verified by 256 target shooting tests,and can meet the needs of domestic Mars exploration mission.