X波段机载微波散射计LS—J型是一部实现整机器件固态化、测控和数据处理智能化、达到国际先进水平的有源微波遥感器。它备有两套软件功能,既能适用于原设计的高性能载机,又能适用于不带惯性导航的普通飞机。本文侧重介绍系统构成、校准、散射系数方程,最后给出飞行试验结果。 The X-band airborne microwave scatterometer LS-J is an active microwave sensor that realizes solid-state, measurement and control and data processing of the whole device to the international advanced level. It is equipped with two sets of software functions, both for the original design of high-performance aircraft, but also for non-inertial navigation of the ordinary aircraft. This article focuses on the system configuration, calibration, scattering coefficient equation, and finally gives the flight test results.