An Identification Method of Corner Reflector Array Based on Mismatched Filter through Changing the Frequency Modulation Slope
Round 1
Reviewer 1 Report
Comments and Suggestions for AuthorsThis paper proposes an interesting mismatched filtering method based on changing frequency modulation slope, which can address the challenge of passive interference from corner reflector arrays in the anti-ship scenarios. The theoretical analysis is given in detailed, and the manuscript is well organized. There are few minor comments.
1) Whether this method can identify all ship types?
2) If the corner reflector arrays show similar size or shape with the ship, how about the accuracy at this moment.
3) Please add the comparison table with state-of-art methods to highlight the advantages.
Comments on the Quality of English LanguageNone
Author Response
We would like to express our sincere thanks to you for the constructive comments and suggestions on this manuscript. We have paid close attention to all comments and made our best to properly address them. Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
Comments and Suggestions for AuthorsThe work could be interesting. Further improvement is required as listed below.
1. More relevant research work could be cited and discussed e.g. Liu, G., Gao, W., Liu, W., Xu, J., Li, R., & Bai, W. (2023). LFM-Chirp-Square pulse-compression thermography for debonding defects detection in honeycomb sandwich composites based on THD-processing technique. Nondestructive Testing and Evaluation, 1–14. https://doi.org/10.1080/10589759.2023.2230341.
2. More quantitative analysis and comparison are required. Signal integration from arrays should be highlighted and discussed with features.
3. Future work could be added.
Comments on the Quality of English Language
NA
Author Response
We would like to express our sincere thanks to you for the constructive comments and suggestions on this manuscript. We have paid close attention to all comments and made our best to properly address them. Please see the attachment.
Author Response File: Author Response.pdf
Reviewer 3 Report
Comments and Suggestions for AuthorsAfter carefully reading this article, I believe there are the following issues worth considering: 1. From the flowchart shown in Figure 7, the method may have many drawbacks, as the processing methods focus on HRRP extraction and SVM related methods. Especially for scenarios with strong radar noise and clutter, algorithms may fail. This is because filtering methods are sensitive to interference. In addition, there may be overfitting and difficulty in removing interference components during the training and testing process of SVM. 2. For ship targets, it is recommended that the author further consider the influence of three-dimensional motion and other wave factors. 3. Gaussian noise may be difficult to simulate in actual radar environments, and it is recommended to use other distribution functions for approximation. 4. The author should provide more comparative methods, rather than just a basic comparison.
Author Response
We would like to express our sincere thanks to you for the constructive comments and suggestions on this manuscript. We have paid close attention to all comments and made our best to properly address them. Please see the attachment.
Author Response File: Author Response.pdf
Reviewer 4 Report
Comments and Suggestions for AuthorsThe article is well-written with good technical content. Need further clarification to process.
1. How does changing the frequency modulation slope of the signal help identify the corner reflector array?
2. What were the specific methods used to test the identification method in the study?
3. What are some potential real-world applications of this identification method?
4. What are some limitations or further directions for research related to this method?
Comments on the Quality of English Language
NA
Author Response
We would like to express our sincere thanks to you for the constructive comments and suggestions on this manuscript. We have paid close attention to all comments and made our best to properly address them. Please see the attachment.
Author Response File: Author Response.pdf
Round 2
Reviewer 3 Report
Comments and Suggestions for AuthorsAfter modification, I believe there are still the following issues: 1. For simulation data, the most basic SVM can indeed perform well because it ignores many practical situations and factors. At this point, it is recommended that the author add prospects for future research and technological improvements. 2. There may be misunderstandings about the three-dimensional motion of ships. My previous comment referred to the changes in roll, pitch, and yaw angles of ships under different sea conditions, which can have an impact on their characteristics.
Author Response
We would like to express our sincere thanks to you for the constructive comments and suggestions on this manuscript. We have paid close attention to all comments and made our best to properly address them. Please see the attachment.
Author Response File: Author Response.pdf
