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Remote Sensing
Volume 16
Issue 11
10.3390/rs16111936
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Article
Peer-Review Record

Reconfigurable Intelligent Surface Assisted Target Three-Dimensional Localization with 2-D Radar

Remote Sens. 2024, 16(11), 1936; https://doi.org/10.3390/rs16111936
by Ziwei Liu 1, Shanshan Zhao 2,*, Biao Xie 2 and Jirui An 2
Reviewer 1: Anonymous
Reviewer 2: Anonymous
Remote Sens. 2024, 16(11), 1936; https://doi.org/10.3390/rs16111936
Submission received: 15 April 2024 / Revised: 21 May 2024 / Accepted: 27 May 2024 / Published: 28 May 2024
(This article belongs to the Topic Information Sensing Technology for Intelligent/Driverless Vehicle, 2nd Edition)

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

This paper studies the three-dimensional localization problem of battlefield surveillance radar, and puts forward a new method to improve the vertical resolution of 2-D radar by introducing RIS technology. This research is innovative and instructive in the field of radar signal processing. In this paper, the RIS-aided three-dimensional localization method is introduced in detail, including the construction of the system, the formation of auxiliary measurement channels and the solution process based on convex optimization method. The content of the paper is complete, and the structure of the paper is reasonable. The language expression is accurate, and conforms to academic norms, which has certain reference value for the research in related fields. The following are the amendments:

Comments 1: In this paper, three classes of existing algorithms are introduced, which have the problems of high cost or poor real-time performance. Why can the introduction of the RIS overcome these problems?

 

Comments 2: RIS has attracted the attention of many researchers in recent years, and it is suggested that some updated references can be added related to its application on the radar system.

 

Comments 3: l.129: The full name of CRLB has appeared in line 123, which is repeated in line 129.

 

Comments 4: l.250: In Eq. 17, only the upper limit of X and Y have been given. Considering the height limitation of the actual aircraft, it is suggested to set an upper limit for Z as well. This can reflect the actual situation more accurately and ensure that the formula has higher applicability in practical application.

 

Comments 5: l.303: There is some confusion about Eq. 22. What does I(Xk) stand for? Maybe, it has some relationship with Ik(Xk)?

 

Comments 6: l.481: By comparing (a) and (b) in Figure 8, it is concluded that the localization accuracy will decrease with the increase of the site error. However, these two figures are similar, and this conclusion is not obvious. It is suggested whether other results can be added.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors


Comments for author File: Comments.pdf

Comments on the Quality of English Language

The English language could be improved by some minor editing.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

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