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Wideband channel characteristics associated with UHF wave propagation within a shopping mall in urban areas are presented in this paper. Impulse responses, decay rate of multipath components as well as the root-mean-square (RMS) delay spread obtained from wideband sounding are studied for both the same level propagation and the inter-level propagation. Due to the enclosed structure of the shopping...
Channel characteristics and temporal variations associated with VHF waves propagation between the engine control room (ECR) and the bridge room on board a vessel is presented in this paper. Temporal variation associated with the signal-to-noise ratio (SNR), Rician K-factor as well as the root-mean-square (RMS) delay spread obtained from wideband sounding are studied and compared for two different...
The strategy of human manual control is investigated in balancing an inverted pendulum under time-delay constraints. Experiments show that as the task becomes more difficult due to the increase in time delay, the human operator adopts a more discrete-like strategy. Interpretation of the discrete-control mechanism is provided by relating the observed human responses with a human-performance model.
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