One-Dimensional Detection Using Interference Estimation by Multilayered Two-Dimensional General Partial Response Targets for Bit-Patterned Media Recording Systems

Round 1

Reviewer 1 Report

In this paper, the authors systematically studied one-dimensional detection using interference estimation by 2 multilayered 2D GPR targets for BPMR systems. The authors applied 2- and 4-way GPR targets to estimate the interference in each stage to create the best structure for 1D detection with an 8-way GPR target, which achieved a performance that was very close to that of the ideal case. This is a complete work. However, there are a few minor issues the authors should address before it is suitable for publication.

1. In this work, the authors mentioned that the proposed model can resist the TMR effect and media noise while achieving the best performance when the channel suffers from TMR and media noise. In Sec. 4.5, the authors simulated the BPMR with 6% position fluctuation. What does the 6% position fluctuation mean? It will be better if the authors can define the position fluctuation and clarify its relation to the temperature as well as the system size.
2. In this manuscript, some of the captions are so brief that people usually can’t understand the figures easily. More details should be provided in the captions of those figures.
3. The texts should be checked carefully, since there are some grammar mistakes.

Author Response

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Author Response File: Author Response.pdf

Reviewer 2 Report

The authors write that "The model shown in Fig. 7 was used for the training process". Which parameters/weights were actually "trained"?

Author Response

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Reviewer 3 Report

The authors have investigated the detection capability while varying the form of the general partial response target and implementing a multilayered 2D general partial response target and a detection method for improving the accuracy in estimating the interference. Results demonstrate that the proposed model improves a gain of 1 dB compared to the previous studies. The manuscript is interesting and useful for the design and application of general partial responsesystems. The paper is acceptable to be published in Applied Sciences, provided the following issue can be addressed

1. Some abbreviations should be clarified when they appear for the first time.
2. Add a table to describe the physical parameters of the simulation setup.
3. Add some discussions if any state-of-the-art algorithms can be used to improve the transmission bit error rate in the considered system

See e.g.

W Hu et al., High-dimensional feature based non-coherent detection for multi-intensity modulated ultraviolet communications, Journal of Lightwave Technology, 2022.

T Wu et al., Demonstration of performance improvement in multi-user NOMA VLC system using joint transceiver optimization, Photonics, 2022.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf