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High-gain directional antennas such as pyramidal horns have been widely used in higher frequency band channel measurements. Channel models established based on directional channel observations are antenna-specific and subject to the direction-scanning method adopted. To de-embed the impact of the antenna's responses from propagation channels, an array signal model is proposed that formulates the received...
In this contribution, an algorithm is derived based on the Space-Alternating Generalized Expectation-maximization (SAGE) algorithm for estimating the power spectrum of time-variant propagation channel dispersive in delay and Doppler frequency. The proposed algorithm utilizes a signal model where each component is characterized by a parametric delay-Doppler frequency power spectral density function...
In order to extract the statistical characteristics of propagation channels, multiple impulse responses of the channels are measured and saved e.g. in terms of cycles or bursts. In the case where measurements are performed in time-variant environments, the received signals need to be divided into multiple segments. It is essential to perform the data segmentation reasonably in order to guarantee that...
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