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Impact of antenna-polarization response on direction-of-arrival measurement

机译：天线极化响应对到达方向测量的影响

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摘要

The impact of emitter polarization on the distribution of phase and amplitude across an array of receiving apertures is analytically examined. That distribution is also dependent upon direction of arrival, and that dependence is the basis in receiving systems for direction finding (DF) and for beamforming with array antennas. Dependence on polarization may tend to confound DF measurement in a certain class of DF systems and may degrade array sidelobe performance in the presence of emitters of arbitrary polarization. Polarization becomes an issue when the array elements are not sufficiently uniform in their response to incident-field polarization. The effect of polarization on DF error from a phase-comparison monopulse receiver is quantified here.
机译：分析了发射极极化对接收孔阵列上相位和幅度分布的影响。该分布还取决于到达方向，并且该依赖关系是接收系统中用于测向（DF）和使用阵列天线进行波束成形的基础。依赖于极化可能会混淆特定类型DF系统中的DF测量，并可能在存在任意极化发射器的情况下降低阵列旁瓣性能。当阵列元件对入射场极化的响应不够充分时，极化就成为一个问题。这里量化了极化对来自相位比较单脉冲接收器的DF误差的影响。

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