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Sensor Self-Localization for Antenna Arrays Subject to Bending and Vibrations

机译:经受弯曲和振动的天线阵列的传感器自定位

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摘要

A method is presented for dealing with the array self-calibration problem with persistent and noncooperating narrowband sources such as TV, GSM, and radio emissions. We consider large and flexible antennas whose sensors are subject to important static distortions and dynamical vibrations. Such antennas can be found, for example, when a high-resolution array is inserted along the wings of an aircraft. We propose a self-calibration technique that solves phase ambiguities arising from the large static bending and estimates the current array shape. This two-step method can be used with a single carrier frequency or with multiband sensors. The performance of the method is evaluated with simulated data and is compared to the Cramer-Rao lower bound (CRLB).
机译:提出了一种用于处理具有持续性和非合作性窄带源(例如电视,GSM和无线电发射)的阵列自校准问题的方法。我们考虑大型且柔性的天线,其传感器会受到重要的静态失真和动态振动的影响。例如,当沿着飞机机翼插入高分辨率阵列时,可以找到这种天线。我们提出了一种自校准技术,该技术可以解决由于较大的静态弯曲而引起的相位模糊并估计当前阵列的形状。此两步方法可以与单个载波频率或与多频带传感器一起使用。使用模拟数据评估该方法的性能,并将其与Cramer-Rao下限(CRLB)进行比较。

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