Range-Doppler Estimation for Gait-Detection with FMCW Radars in a Simulated Indoor Scenario

Easha, E and Banerjee, G (2022) Range-Doppler Estimation for Gait-Detection with FMCW Radars in a Simulated Indoor Scenario. In: 2022 IEEE Microwaves, Antennas, and Propagation Conference, MAPCON 2022, 12-16 December 2022, Bangalore, pp. 1703-1708.

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Abstract

This paper discusses a MATLAB-based simulation model to mimic an indoor scenario and detect the presence of a human target behind an obstacle to enable range and velocity computation, verification with set parameters and rudimentary clutter rejection. Simulations, based on three frequency modulated continuous wave (FMCW) radars with starting frequencies at 2, 24 and 77 GHz, are presented. The paper describes the simulation steps involved in determining the important FMCW radar parameters, the design of a three-dimensional human model as a radar target, and the data generation and signal processing steps needed to obtain the range-doppler maps for specific scenarios. A comparison of the observed range and Doppler information for all the three radars in an ideal scenario is presented. Further, non-idealities are added and their impact is studied for a 2 GHz radar in the presence of different types of obstacles. The work presented in this paper can be extended to build a complete simulation framework to study and understand the effect of the non-idealities of a radar system on human gait detection. © 2022 IEEE.

Item Type:	Conference Paper
Publication:	2022 IEEE Microwaves, Antennas, and Propagation Conference, MAPCON 2022
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Clutter (information theory); Continuous wave radar; Frequency modulation; Pattern recognition; Radar clutter; Tracking radar, 2-D FFT; Clutter rejection; Frequency modulated continous waves; Frequency-modulated-continuous-wave radars; Gait detection; Mm waves; Multiple targets; Nonideality; Range doppler; Windowing, MATLAB
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	28 Mar 2023 09:49
Last Modified:	28 Mar 2023 09:49
URI:	https://eprints.iisc.ac.in/id/eprint/81208

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