Short-term channel behaviour from the two-path model
The waves incident on a mobile receiving antenna sometimes arrive via a line-of-sight from the transmitter, but in a general case they emanate mostly from scatterers. The scatterers can be viewed as electromagnetic sources. The scenario comprises these sources and their geometric relation to the receiving antenna. Scenario and propagation channel models are developed. The deterministic two-path model is used extensively as a model since it offers a simple tutorial and can produce representations of most of the behaviour from real-world channels. The deterministic model is developed into stochastic forms, and finally into averaged forms. During the development, the distortion of a signal in the channel is addressed and the antenna interfacing principles are also discussed.The waves incident on a mobile receiving antenna sometimes arrive via a line-of-sight from the transmitter, but in a general case they emanate mostly from scatterers. The scatterers can be viewed as electromagnetic sources. The scenario comprises these sources and their geometric relation to the receiving antenna.
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