The Extended LM method For Multiple Frequencies Micro-Doppler Radar for Human Heartbeat Sensing

Dong Kyoo Kim, You Jin Kim
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Abstract

Micro-Doppler radar is attracting attention as a technology to wirelessly sense small movement of human body such as heartbeat measurement. The off-the-shelf 24 GHz micro-Doppler radar can easily detect the human vital signals. To enhance the detection performance, many signal processing algorithms have been proposed. One of key issue for improving the detection performance is the DC-offset estimation of the micro-Doppler radar because the DC-offset has direct impact on the radar’s movement estimation accuracy. This paper proposes a new accurate DC-offset estimation algorithm that is based on state-of-the-art multiple frequencies micro-Doppler radar.
多频微多普勒人体心跳传感的扩展LM方法
微多普勒雷达是一种无线探测心跳等人体微小运动的技术,正受到人们的关注。现成的24千兆赫微型多普勒雷达可以很容易地探测到人体的生命信号。为了提高检测性能,人们提出了许多信号处理算法。微多普勒雷达的直流偏置估计问题是提高雷达探测性能的关键问题之一,因为直流偏置直接影响到雷达的运动估计精度。本文提出了一种基于多频微多普勒雷达的高精度直流偏置估计算法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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