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Article
Peer-Review Record

A NavCom Signal Authentication Scheme Based on Twice Two-Way Satellite Time Transfer

Remote Sens. 2024, 16(1), 10; https://doi.org/10.3390/rs16010010
by Xiaomei Tang, Sixin Wang *, Jiyang Liu and Feixue Wang
Reviewer 1: Anonymous
Reviewer 2:
Remote Sens. 2024, 16(1), 10; https://doi.org/10.3390/rs16010010
Submission received: 22 October 2023 / Revised: 13 December 2023 / Accepted: 15 December 2023 / Published: 19 December 2023
(This article belongs to the Special Issue Space-Geodetic Techniques II)

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

 

Comments for author File: Comments.pdf

Comments on the Quality of English Language

Some English expressions are not very accurate. There are some typo errors. Please check and correct

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 2 Report

Comments and Suggestions for Authors

This paper proposed a novel signal authentication scheme based on twice two-way satellite time transfer for LEO satellite systems. This scheme improves the safety of navigation signals by fully utilizing the communication and measurement functions of NavCom signals in lower implementation costs. This paper is well written. Here are some minor concerns need to be addressed.

(1) It is clear from this paper the measurement function of NavCom signals was used, but the role of communication capability in the scheme was not explained enough. It is recommended to add relevant descriptions.

(2) The conclusions should be much more specific. As this chapter now stands, it has the character of a summary of the paper.

(3) The legend in Figure 10 only appears in the left image, not in the right image. It is recommended to standardize and optimize the writing style.

(4) Some formulas are not displayed completely. Please check and correct, e.g., TC,A in page 5 line 1.

(5) Some references are relatively old, and new references can be added appropriately.

Author Response

Please see the attachment.

Author Response File: Author Response.docx

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