Radar Evaluation Setup for the Replication of Chest Wall Movement from Vital Signs

Domnik, Christoph; Meuleners, Michael; Degen, Christoph

doi:10.1109/embc48229.2022.9871203

Cited by 1 publication

(10 citation statements)

References 15 publications

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“…The diaphragm deflection is linear to the applied voltage [...]." as outlined in [1]. This result is displayed again in Figure 4.…”

Section: Hardware Setupsupporting

confidence: 67%

“…The loudspeakers need a suitable signal to generate a movement. In [1] a function generator is used to drive the loudspeakers, but this approach is very limited as mentioned before. A flexible strategy is necessary to reproduce real chest wall micro movement from vital signs.…”

Section: Amplifiermentioning

confidence: 99%

“…This paper is an extension of work originally presented in the 44th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) [1]. The concept of both publications is to create repeatable and realistic scenarios for testing, comparing and optimizing different post processing algorithms for radar technology used in vital sign sensing scenarios.…”

Section: Introductionmentioning

confidence: 99%

“…In contrast to the setup presented in our previous paper [1], the setup that will be introduced in the following will use a second loudspeaker to replicate clutter from a second moving object. The previous paper [1] introduced a setup to generate reproducible movement patterns analog to chest wall micro movement from vital signs. That setup consisted of a single loudspeaker actuated by a function generator.…”

Section: Introductionmentioning

confidence: 99%

“…It was shown that the diaphragm deflection measured by radars is linear to the voltage applied to the loudspeaker. Although this means that accurate measurements of the replicated micro movement are possible with the presented setup in [1], the replication of more realistic vital sign micro movement is problematic with that setup, which was addressed by the reviewers and numerous readers at the conference. To meet this request in this present paper, we will describe a new hardware setup using more flexible signal generation.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Measurement System for Evaluation of Radar Algorithms using Replication of Vital Sign Micro Movement and Dynamic Clutter

Domnik¹,

Erni²,

Degen³

2023

Adv. sci. technol. eng. syst. j.

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In this paper we present a measurement system that is able to evaluate radar algorithms for vital signs sensing applications. For such medical applications, it is crucial to develop robust and reliable algorithms that are tested in a laboratory environment. The presented measurement system generates reproducible vital sign micro movement and dynamic clutter using loudspeakers to replicate realistic scenarios with two moving objects. It is described how realistic vital sign movement patterns are prepared using signal synthesis or recorded measurements, e.g. from a published dataset. The capability of the system to evaluate radar algorithms is demonstrated by investigating the impact of a beamforming algorithm on dynamic clutter. During the measurements presented in this paper, one loudspeaker replicates different vital sign movement patterns and the other loudspeaker creates dynamic clutter. It is shown that a digital beamforming improves the dynamic clutter rejection and leads to a better quality of the radar phase signal.

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“…The diaphragm deflection is linear to the applied voltage [...]." as outlined in [1]. This result is displayed again in Figure 4.…”

Section: Hardware Setupsupporting

confidence: 67%

Section: Amplifiermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%