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- W4320514940 abstract "提出一种临近空间艇载原位测量大气风场的新方法，该方法利用声波传播时延差测量临近空间大气风场.介绍了该方法的原理，分析了测风误差来源和测风精度.通过分析声波在临近空间高度的衰减，对信号载波频率和传播距离进行了选择，并对不同信噪比条件下声波时延估计精度进行了仿真分析.结果表明：在临近空间20~50km高度，传播距离为2~5m，距离测量精度为1mm，平台测速精度为0.1m·s<sup>-1</sup>，信噪比优于-2dB条件下，时延估计精度优于1<i>μ</i>s，利用该方法测风精度能达到0.2m·s<sup>-1</sup>的较高水平." @default.
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- W4320514940 date "2019-01-01" @default.
- W4320514940 modified "2023-10-16" @default.
- W4320514940 title "Analysis of Airborne Acoustic Wave Wind-metering of the Near Space" @default.
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- W4320514940 doi "https://doi.org/10.11728/cjss2019.02.200" @default.
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