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首页> 外文会议>2017 7th International Conference on Integrated Circuits, Design, and Verification >An experimental measurement of simple chip AD8302 implemented in SONAR interferometer
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An experimental measurement of simple chip AD8302 implemented in SONAR interferometer

机译：SONAR干涉仪中简单芯片AD8302的实验测量

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摘要

The paper investigates the underwater acoustic signal DOA (Direction Of Arrival) estimation of the passive sonar interferometer using the combination of the phase and amplitude comparison. Therefore, we performed an experimental measurement in this research for the AD8302, which was applied in the sonar interferometer to estimate DOA of the acoustic signals. The proposed system was designed and established for the experimental measurement in the scale of the lab water tank. The acoustic signal, which was used for the measurement, has pulsed-shape waveform with carrier frequency 200 kHz. The measurement results show that: the proposed sonar interferometer using the AD8302 could estimate the DOA of the signal with high accuracy and resolution. Specifically, for the real DOA = -1°, 0° and 1.5°, the sonar interferometer estimated the DOA = -0.9°, 0° and 1.37°. The root mean square error (RMSE) of the phase difference are 3.5°, 2.9° and 2.3° and the RMSE of the DOA estimation 0.04°, 0.03° and 0.02° for the real DOA = -1°, 0° and 1.5°, respectively.
机译：本文结合相位和幅度比较的方法，研究了无源声纳干涉仪的水下声波信号DOA（Direction of Arrival）估计。因此，我们在这项研究中对AD8302进行了实验测量，该测量被应用于声纳干涉仪中，以估算声信号的DOA。设计并建立了建议的系统，用于实验室水箱规模的实验测量。用于测量的声学信号具有载波频率为200 kHz的脉冲波形。测量结果表明：所提出的使用AD8302的声纳干涉仪可以高精度和高分辨率地估计信号的DOA。具体来说，对于实际的DOA = -1°，0°和1.5°，声纳干涉仪估算出DOA = -0.9°，0°和1.37°。相位差的均方根误差（RMSE）为3.5°，2.9°和2.3°，并且DOA估计值的RMSE对于实际DOA = -1°，0°和1.5°为0.04°，0.03°和0.02° ， 分别。

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