Time varying narrowband communications channels : analysis and implementation

An efficient numerical algorithm for the analysis of wireless radio and sonar communications channels in the framework of Hilbert-Schmidt operators is derived. The underlying model is based on the description of the short-time behavior of these channels as a weighted superposition of time and frequency shift operators, where the weight function is called the spreading function of the channel operator. A description of an implementation of the developed algorithm in MatLab completes this technical report.

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