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毫米波段在空间目标识别中具有许多重要的优点。这些优点是,由于孔径尺寸适中,能得到较好的角分辨力;由于多普勒灵敏度高,能得到精确的轨道参数;具有与宇宙飞船尺寸相当的成象能力(因为在这些频率上固有地可以得出宽带波形)。现在的技术能力完全允许认真地考虑研制空间目标识别用毫米波探测器。 本文利用某些最近测得的宇宙飞船各组成部分的雷达截面特性来叙述空间目标识别雷达系统的系统要求。将这些系统要求与现有的和预计近期可以得到的组件技术作了比较。本文还将对实例系统的设计加以叙述。
The millimeter wave band has many important advantages in spatial object recognition. These advantages result in better angular resolution due to modest aperture size, accurate orbital parameters due to high Doppler sensitivity, and imaging capabilities comparable to those of a spacecraft (because inherently at these frequencies Can get the broadband waveform). The current technical capabilities fully allow for careful consideration of the development of a space-based object recognition millimeter-wave detector. This article describes the system requirements for space-based target recognition radar systems using the radar cross-section characteristics of some recently measured spacecraft components. Compare these system requirements with existing and anticipated component technologies that are available in the near future. This article will also describe the design of the example system.