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首页> 外文会议>Conference on Laser Weapons technology 24-25 April 2000 Orlando, USA >Optical turbulence path integration: methodology
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Optical turbulence path integration: methodology

机译：光学湍流路径整合：方法论

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Presently the propagation models used to assess ABL performance employ an onionskin atmosphere. Onionskin atomspheres ignore the profound horizontal intermittency in C_n~2 foun d in experiment. The problems assoicated with modeling optical turbulence over shallow slant paths using balloon and aerothermal point measurements are presneted. We describe a method developed by the authors, which inte4grates the horizontal intermittency evident in the aerothermal data with the balloon profiles. This methodology takes randomly drawn segments of the aerothermal data to provide the intermittency along a smoothed balloon profile. An Independent and Idnetically Distributede (IID)~1 process describes this methodology. To date all methods known by the authors utilize an IID process to account for intermittency.~2. However, IID processes fail to fully appreciate the information contained in a continuous stream of aerothermal data. We present a methodology that utilizes time expected integrated turbulence levels is broader than those calculated previously. This suggests that in reality there will be a greater probability that a beam will experiience sustained periods of extreme turbulence along the path, strong or weak, than would be predicted using an IID model.
机译：目前，用于评估ABL性能的传播模型采用洋葱皮气氛。洋葱皮原子球忽略了实验中C_n〜2的深层水平间歇性。预先解决了与使用气球和空气热点测量对浅斜路径上的光学湍流建模有关的问题。我们描述了一种由作者开发的方法，该方法将具有气球轮廓的空气热数据中明显的水平间断性整合在一起。该方法采用了随机抽取的空气热数据片段，以沿平滑的气球轮廓提供间断性。一个独立且同等的分布式（IID）〜1过程描述了此方法。迄今为止，作者所知的所有方法都利用IID过程来解释间歇性问题。2。但是，IID过程无法完全理解连续不断的空气热数据流中包含的信息。我们提出了一种利用预期时间的综合湍流水平比以前计算的范围更广的方法。这表明，与使用IID模型预测的结果相比，实际上，光束沿路径经历强或弱的持续湍流的可能性更大。

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