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Article
Peer-Review Record

Curved Path Following Control for a Small Fixed-Wing UAV with Parameters Adaptation

Appl. Sci. 2022, 12(9), 4187; https://doi.org/10.3390/app12094187
by Yang Chen 1,*, Nan Li 2, Wei Zeng 1 and Yongliang Wu 3
Reviewer 1: Anonymous
Reviewer 2: Anonymous
Appl. Sci. 2022, 12(9), 4187; https://doi.org/10.3390/app12094187
Submission received: 27 March 2022 / Revised: 19 April 2022 / Accepted: 19 April 2022 / Published: 21 April 2022

Round 1

Reviewer 1 Report


Comments for author File: Comments.docx

Author Response

Dear reviewer,

Thank you very much for your valuable suggestions on our paper “Curved Path Following Control for a Small Fixed-Wing UAV with Parameters Adaptation” (Manuscript No. applsci-1676493). We have carefully revised our paper according to your suggestions and the changes that we made to the original manuscript have been highlighted with red color.

The details are presented in our responding letters in the attachment files.

We thank the reviewers again for these important and constructive comments, which can really improve our work greatly. According to the reviewers’ valuable comments and suggestions, we have given more details for clarity and better explanation. Thanks.

Thank you again for your careful reading and constructive suggestions. If there is somewhere in our paper that needs further revision, please let us know.

 

Yours sincerely,

Yang Chen, Nan Li, Wei Zeng, Yongliang Wu

E-mail: chenyang4117@163.com

Address: School of Physics and Mechatronics Engineering, Longyan University, Longyan 364012, China

Author Response File: Author Response.pdf

Reviewer 2 Report

The problem tackled here is interesting, and the results seem correct. My main concern is that some works already solve this problem, see:

https://ieeexplore.ieee.org/abstract/document/6564789  

https://ieeexplore.ieee.org/abstract/document/7152420 

Thus, the authors must justify and convince the reader how this paper ameliorates or give an alternative solution to those works.

Some technical questions:

  1. It seems that the saturation function $f_{sat}$ appearing in (8) provides not differentiable points to the control law. How do you deal with that? The Lyapunov analysis is only concerned with differentiable functions.
  2. Some vivid experimental results should be presented, or the authors provide some insights and possible problems with implementing the control law in a real airplane.
  3. Is the fuzzy-control indispensable? One can get a good tuning of $k(t)$ without it. 
  4. How does your control deal with the takeoff and landing autonomous tasks?

Author Response

Dear reviewer,

Thank you very much for your valuable suggestions on our paper “Curved Path Following Control for a Small Fixed-Wing UAV with Parameters Adaptation” (Manuscript No. applsci-1676493). We have carefully revised our paper according to your suggestions and the changes that we made to the original manuscript have been highlighted with red color. 

The details are presented in our responding letters in the attachment files.

We thank the reviewers again for these important and constructive comments, which can really improve our work greatly. According to the reviewers’ valuable comments and suggestions, we have given more details for clarity and better explanation. Thanks.

Thank you again for your careful reading and constructive suggestions. If there is somewhere in our paper that needs further revision, please let us know.

 

Yours sincerely,

Yang Chen, Nan Li, Wei Zeng, Yongliang Wu

E-mail: chenyang4117@163.com

Address: School of Physics and Mechatronics Engineering, Longyan University, Longyan 364012, China

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

Dear authors!

Thank you for your kind words and detailed responses to my comments. I believe that you have done a tremendous work in revising the text and in the end you have succeeded in greatly improving the quality of the manuscript.  The main flaw of the paper, which was the lack of comparison with known approaches, has been addressed. Kind regards.

Author Response

Dear reviewer,

Thank you very much for the approving remark and hard work in reviewing our revised manuscripts “Curved Path Following Control for a Small Fixed-Wing UAV with Parameters Adaptation” (Manuscript No. applsci-1676493). 

We thank your again for your hard work  which can really improve our work greatly. 

Yours sincerely,

Yang Chen, Nan Li, Wei Zeng, Yongliang Wu

E-mail: chenyang4117@163.com

Address: School of Physics and Mechatronics Engineering, Longyan University, Longyan 364012, China

Reviewer 2 Report

The authors have answered all of my comments. I recommend that they conclude section 2 with a short statement that summarizes the problem statement. Then, at the beginning of section 3, I recommend adding a sketch of the solution; the authors can add a diagram showing how all the control parts are put together by specifying the goals for every part of the control algorithm.

Author Response

Dear reviewer,

Thank you very much for your valuable suggestions on our revised paper “Curved Path Following Control for a Small Fixed-Wing UAV with Parameters Adaptation” (Manuscript No. applsci-1676493). We have carefully revised our paper according to your suggestions and the changes that we made to the original manuscript have been highlighted with red color.

The details are presented in our responding letters in the attachment files.

Thank you again for your careful reading and constructive suggestions. If there is somewhere in our paper that needs further revision, please let us know.

Yours sincerely,

Yang Chen, Nan Li, Wei Zeng, Yongliang Wu

E-mail: chenyang4117@163.com

Address: School of Physics and Mechatronics Engineering, Longyan University, Longyan 364012, China

 

Author Response File: Author Response.pdf

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