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FixedDelay Tree Search
Digital Magnetic Recording
3 other sections not shown
additive noise assumed AWGN branch metrics channel impulse response channel model channel response corresponding decision feedback deﬁned detection methods detector performance discrete-time effective minimum distance effective SNR EPR4 EPR4+VA error events Euclidean distance FDTS FDTS/DF detector Figure ﬁnd ﬁrst ﬁxed input sequence intersymbol interference length linear equalization look-ahead paths Lorentzian magnetic recording channel matched ﬁlter minimum nm-length minimum run-length constraint MLSD modiﬁed node noise enhancement noise power obtained output error sequence overall channel path metrics peak detector position jitter PR channel PR equalization Q 1 Q Q Q Q Q Q Q Q QQQQ QQQQQ resulting shown signal margin signal sequence signiﬁcant signiﬁcantly step pulse step response survivor path symbol density Symbol error probability symbol interval threshold detector transition noise tree search tree search algorithms truncation uncoded system user density Viterbi algorithm Viterbi detector waveform white noise width variation