Cyclone maximum wind retrievals are demonstrated using tracks of full delay-Doppler map (DDM) measurements of the Cyclone Global Navigation Satellite System (CYGNSS) constellation. The method is based on the production of a library of simulated DDMs for a synthetic storm model, as the parameters of the synthetic storm are varied. A matched filter approach between normalized simulated and measured DDMs is then applied to retrieve storm parameters. Because the method uses normalized DDMs in the retrieval, it is insensitive to the absolute power calibration of the DDM and instead relies on the DDM shape. Results from the method are shown for CYGNSS full DDM overpasses of Hurricane Irma as a case study. The maximum wind speed estimates obtained were associated with a retrieval root-mean-square error (RMSE) of 6.89 m/s and an unbiased RMSE 5.20 m/s with a mean difference of 4.52 m/s compared to reported National Hurricane Center Best Track forecasts.

中文翻译：

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使用气旋全球导航卫星系统 (CYGNSS) 任务完整 DDM 的基于轨道的气旋最大风力检索

使用气旋全球导航卫星系统 (CYGNSS) 星座的全延迟多普勒图 (DDM) 测量轨迹演示了气旋最大风反演。该方法基于合成风暴模型的模拟 DDM 库的生成，因为合成风暴的参数是变化的。然后应用归一化模拟和测量 DDM 之间的匹配滤波器方法来检索风暴参数。由于该方法在检索中使用归一化的 DDM，它对 DDM 的绝对功率校准不敏感，而是依赖于 DDM 形状。该方法的结果以飓风艾玛的 CYGNSS 全 DDM 立交桥作为案例研究显示。获得的最大风速估计值与 6.89 m/s 的检索均方根误差 (RMSE) 和无偏 RMSE 5 相关。