Estimation and filtering for digital signals
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This thesis is concerned with the estimation of the sampled impulse response of
a time-varying HF channel, over a synchronous serial data transmission system,
using quaternary phase shift keyed signals operating at 2400 bauds, with an 1800
Hz carrier. It is also concerned with the adjustment of a linear filter ahead of a
near maximum likelihood detector, to make the channel minimum phased, and
hence remove phase distortion introduced over telephone channels for a 16
QAM data transmission system operating at 9600 bits/s. [Continues.]