Electronics and electrical engineering

This work is an investigation of leaky ray (mode) attenuation in graded multimode fibres. In contrast to slab or rectangular dielectric waveguides, cylindrical fibres possess leaky modes which greatly modify their propagation properties. The power carried by such modes eventuall…

Time encoded speech (TES) proposes the transmission of speech by segmenting the waveform between real-zero crossings. Speech comprises two types of sound - voiced and unvoiced. The segment rate is low for voiced sounds and high for unvoiced sounds. Matching of the variable segme…