Toward an optimum receiving array and pulse set for the Dynasonde
Toward an optimum receiving array and pulse set for the Dynasonde
复制标题
为发电机探空仪提供最佳的接收阵列和脉冲集
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
J. Wright
中科院分区：
文献类型：
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作者：
M. Pitteway;J. Wright
通过高分辨率可编程电离探空仪估计无线电回波参数的准确性和效率取决于脉冲组设计和接收天线布局的软件设计策略。除幅度和到达时间（因此回声定位、多普勒、偏振旋转和平均相位角的三个分量）之外的所有回波参数均由相位角差确定。如果有六个以上的独立相位测量可用，则该解决方案可以方便地表示为最小二乘估计。由于观察到的相位必须以 360° 为模，从 12 位复振幅数据中获得，因此每个参数都会受到混叠模糊性的影响，在每个策略中都必须预见到混叠模糊性，并将其最小化。
The accuracy and efficiency with which radio echo parameters may be estimated by a programmable ionosonde of high resolution depend upon software-designed strategies of pulse set design and receiving antenna layout. All of the echo parameters, except amplitude and time of arrival (thus three components of echolocation, Doppler, polarization rotation, and an average phase angle) are determined by phase angle differences. The solution is conveniently expressed as a least squares estimation, provided that more than six independent phase measurements are available. Since the observed phases are necessarily obtained modulo 360°, from 12-bit complex amplitude data, each parameter is subject to aliasing ambiguities which must be anticipated in each strategy, and minimized.