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与机载平台雷达探测时的空时二维耦合杂波特性不同,天基平台雷达探测时地球自转对杂波的多普勒谱调制影响,导致杂波频谱进一步展宽,杂波抑制变得更加复杂。文中主要研究地球自转对PD体制天基平台雷达杂波回波特性的影响,并进行了仿真,首次得到PD体制下天基平台杂波回波的距离多普勒谱图,为天基雷达杂波抑制和目标检测提供理论基础和依据。
Different from the space-time two-dimensional coupled clutter characteristics of airborne platform radar detection, the influence of earth rotation on the Doppler spectral modulation of clutter during spaceborne radar detection leads to further broadening of clutter spectrum and clutter suppression more complicated. In this paper, we mainly study the influence of the Earth’s rotation on the radar clutter echo characteristics of the PD-based space-based platform and carry out the simulation. For the first time, we get the distance Doppler spectrum of the clutter echo of the space-based platform in the PD system, Clutter suppression and target detection provide the theoretical basis and basis.