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首页> 外文期刊>International journal of microwave and wireless technologies >Cost-effective millimeter-wave measurement setup for narrowband path loss and angleof-arrival measurements: uncertainty analysis and specular building reflection measurements
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Cost-effective millimeter-wave measurement setup for narrowband path loss and angleof-arrival measurements: uncertainty analysis and specular building reflection measurements

机译：Cost-effective millimeter-wave measurement setup for narrowband path loss and angleof-arrival measurements: uncertainty analysis and specular building reflection measurements

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摘要

A cost-effective millimeter-wave measurement setup for narrowband path loss and angle-ofarrivalmeasurements is presented in this paper. The setup consists of ubiquitous radiofrequencylab equipment and additional low-cost components. An algorithm is developed,which improves the measurement accuracy and reduces the required measurement time.An uncertainty analysis is performed, including a noise analysis, amplifier linearity, antennamisalignment and general system impairments. A theoretical model of the received signal plusnoise is developed, which is used in Monte Carlo simulations to show the impact of snapshotaveraging on the uncertainty. The estimated combined uncertainty with a 95.45 confidencelevel is 1.1 dB at the maximum measurable path loss and 0.3 dB in the case of low path loss,where the uncertainty due to receiver noise is negligible. The measurement setup is usedin outdoor specular building reflection measurements at 24.00–24.25 GHz. The measuredsingle-building reflections show a 1–9 dB excess loss compared to the free-space path loss.The measured excess loss is 9–20 dB for double-building reflections. These results indicate thatbuildings could potentially be used as effective millimeter-wave specular reflectors to extendmillimeter-wave coverage.

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