Digital Signal Processing Reference
In-Depth Information
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Fig. 13.1 (a) FBF output: Blue dotted line is DSB output, black dotted lines are updated FBF
output: Red line is the final FBF output after 20 iteration. Updated FBF output produces more
impulse-like output by eliminating the effect of the designated echo paths, in other words, more
deconvolved output. (b) Estimated channel h1. (c) Estimated channel h2: Red dots show the
converged channel response after 20 iteration, and the blue dotted lines are updated responses.
The black line is for original RIR. The designated channel responses are almost perfectly identified
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Fig. 13.2 (a) Estimated channel h1. (b) Estimated channel h2: Red dots show the converged
channel response after 20 iteration, and the black line is for the original RIR. The designated
channel responses above the predefined threshold are almost correctly identified
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