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Measurement Uncertainty, Channel Simulation, and Disturbance Characterization of an Over-the-Air Multiprobe Setup for Cars at 5.9 GHz

2015; Institute of Electrical and Electronics Engineers; Volume: 62; Issue: 12 Linguagem: Inglês

10.1109/tie.2015.2475423

1557-9948

Mikael Nilsson, Paul Hallbjörner, Niklas Arabäck, Björn Bergqvist, Taimoor Abbas, Fredrik Tufvesson,

Electromagnetic Compatibility and Noise Suppression

Over-the-air multi-probe setups provide an efficient way to characterize the performance of today's advanced wireless communication systems.In this paper the measurement uncertainty of such a setup using a car as a test object is characterized through three experiments: measurement system analysis, channel sounder measurements, and probe coupling measurements.Four issues were in focus for the analysis; precision, realization of the wireless communication channel, coupling between the probes, and the influence of the test object size.The analysis shows that a large test object such as a car in an over-the-air multi-probe ring will affect the measurement uncertainty, but only to a small degree.The measurement uncertainty expressed as expanded uncertainty was below +/-1dB, a level that would not violate best practice total uncertainty levels for comparable over-the-air methods.