Multihead Multitrack Detection for Next Generation Magnetic Recording, Part II: Complexity Reduction — Algorithms and Performance Analysis

Design of an advanced soft‐output Viterbi algorithm detector for bit‐patterned media recording systems

“…The isolated square islands are of 12.5 nm length. The island pitch is 25 nm [6]. The pulse‐width at half maximum (PW 50 ) value of the cross‐track and along‐track are 31.2 and 21.2 nm, respectively.…”

“…A multi‐track detection technique using the soft information detected from the sidetracks proposed to eliminating the effects of ITI [4]. Analysis of performance and complexity reduction for the multi‐head multi‐track detection was presented in [5, 6]. The authors also proposed a detector deploying a trellis structure whose output labels are independent of the ITI.…”