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首页> 外文会议>Applied laser radar technology conference >Heterodyne laser radar array receivers for the mitigation of target-induced speckle
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Heterodyne laser radar array receivers for the mitigation of target-induced speckle

机译：外差激光雷达阵列接收器，用于减轻目标诱导的斑点

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摘要

We investigated a space diversity optical heterodyne array receiver for optimal coherent detection of finite transverse coherence length fields. In such an array receiver, each of the independent IF signals are appropriately phase-shifted and summed to generate a single IF signal with improved statistical qualities. In this paper we show that the advantages offered by a coherent array are both an increased average carrier-to-noise ratio and a reduction in carrier fading. We also show that the equal gain diversity reception technique performs almost as well as the maximal ratio technique with significantly less hardware complexity. Finally, we present the experimental results from a two element, one micron, laboratory breadboard ladar system.
机译：我们研究了一个空间分集光学外差阵列接收器，用于有限横向相干长度的最佳相干检测。在这种阵列接收器中，每个独立的IF信号被适当地相移和总共求和，以产生具有改进的统计质量的单个IF信号。在本文中，我们表明，相干阵列提供的优点均为增加的平均载波噪声比和载体衰落的减少。我们还表明，相同的增益分集接收技术几乎和最大的比率技术具有显着较低的硬件复杂性。最后，我们介绍了两个元素，一个微米，实验室薄层胶水系统的实验结果。

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