期刊
SENSORS
卷 22, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/s22031048
关键词
radar; shadow effect; machine learning; CNN; transfer learning
In this paper, a novel method based on Convolutional Neural Networks is proposed to address the radar shadow effect issue in FMCW radars, achieving a test accuracy of 92%.
The radar shadow effect prevents reliable target discrimination when a target lies in the shadow region of another target. In this paper, we address this issue in the case of Frequency-Modulated Continuous-Wave (FMCW) radars, which are low-cost and small-sized devices with an increasing number of applications. We propose a novel method based on Convolutional Neural Networks that take as input the spectrograms obtained after a Short-Time Fourier Transform (STFT) analysis of the radar-received signal. The method discerns whether a target is or is not in the shadow region of another target. The proposed method achieves test accuracy of 92% with a standard deviation of 2.86%.
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