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De-embedding Motion Artifacts from Robotic Arm Assisted Propagation Measurements
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- Authors
- Issue Date
- 2021
- Publisher
- IEEE
- Citation
- 2021 IEEE TEXAS SYMPOSIUM ON WIRELESS AND MICROWAVE CIRCUITS AND SYSTEMS (WMCS)
- Abstract
- This paper introduces a method to de-embed motion artifacts introduced by cable movement during millimeter wave propagation measurements that involve motion. In our work, the motion is performed by a Sawyer robotic arm emulating a UAV motion profile disturbed with gusts generated by the Dryden wind model. An RF cable connects the Rx from the end effector of the arm to a Keysight VNA taking time-swept continuous wave measurements. The cable moves with the arm, introducing phase changes to the measurement data. After determining the cable S-parameters in the continuous time domain, they are removed from the measurement data to get the channel parameters. Furthermore, the effects of de-emebedding is examined by comparing the Doppler spread of measurement data before and after de-embedding. The noise floor in the channel shifted from -62 dB before de-embedding to -58 dB after de-embedding. The observed Doppler spread reduced by 31.67 Hz.
- ISSN
- 2638-3845
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Related Researcher
- College of Engineering
- Department of Electrical and Computer Engineering
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