Simplified Two-Dimensional Generalized Partial Response Target of Holographic Data Storage Channel
Round 1
Reviewer 1 Report
This paper proposes a new signal processing method for holographic data storage. The proposed approach introduces a 2D generalized partial response (GPR) target for estimating 2D interference and shows superior BER performance than the conventional 1D GPR target model.
While the argument of this paper is clear, the contribution of this paper seems limited compared to the papers published by the same authors.
https://doi.org/10.3390/app12042112
If there are no significant improvements to the proposed method in this paper, the content should be enhanced by adding experimental validation results.
Author Response
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Author Response File: 
Author Response.docx
Reviewer 2 Report
The authors have proposed a new 2D generalized partial response target to estimate the 2D interference based on two serial one dimensional GPR targets. The manuscript describes the theoretical model and validates the proposed model with simulation results. The proposed model is interesting in view of the improvements in the holographic data storage systems. It was recommended to be published in Applied Sciences if the following queries are solved.
- The introduction section of the manuscript does not provide a clear description about the novelty aspects of the proposed technique in applied domains of holographic data storage systems in comparison to other techniques. The authors need to provide more details in this section. Also, manuscript can include more references in this section.
- Would it be possible to validate the proposed model with experimental system and compare with other techniques? Why did the authors stick only to the simulation results and the respective quantitative comparison with the existing models?
Author Response
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Author Response File: Author Response.docx
Reviewer 3 Report
The paper reports on a method to decompose 2D inter-symbol interference (ISI) into two serial 1D ISI. This method greatly simplifies the detector and improves the performance of the HDS system, especially its tolerance to misalignment and increased blur. The paper is nicely written, well-organized, and the conclusion is well supported by the obtained simulated results. So, the reviewer thinks that the paper is worth publishing in Applied Science, as it is.
Author Response
Thank you for your comments.
