4 DSP
4.6 DSP-based Auxiliary Circuits (for RX)
4.6.1 Beat Cancel (AF Processing)
Beat cancel (BC), as its name implies, is designed to cancel unpleasant beat interference. Like NR1 (line enhancer), BC uses adaptive filter technology. With this technology BC tracks and cancels a beat signal just like shaping a band elimination filter.
BC is especially effective when there are multiple beats that are equivalent to or lower in strength than the target signal. The adaptive filter can
Figure 4-10 Beat Cancel
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