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Radio wave active Doppler imaging of space plasma structures: Arrival angle, wave polarization, and Faraday rotation measurements with the radio plasma imager

机译:空间等离子体结构的无线电波有源多普勒成像:利用无线电等离子成像仪的到达角,波极化和法拉第旋转测量

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摘要

Radio sounding in the magnetosphere by the radio plasma imager on the IMAGE spacecraft will determine the dimensions and shape of the cavity between the magnetopause and the plasmapause. Omnidirectional transmission of pulsed radio signals results in echoes arriving from many directions. Quadrature sampling and Doppler analysis of the signals received on three orthogonal antennas will make it possible to determine the angles of arrival of the echoes, their polarization ellipses, and the Faraday rotation. Decomposition of the echo signals into the two characteristic waves is used to identify the O- and X-wave components.
机译:IMAGE航天器上的无线电等离子体成像器在磁层中的无线电探测将确定磁层顶与等离子体暂停之间空腔的尺寸和形状。脉冲无线电信号的全向传输导致回波从许多方向到达。对在三个正交天线上接收到的信号进行正交采样和多普勒分析,将可以确定回波的到达角度,其极化椭圆和法拉第旋转。将回波信号分解为两个特征波用于识别O和X波分量。

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