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Applied Sciences
Volume 10
Issue 7
10.3390/app10072316
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Article
Peer-Review Record

A Modified Functional Observer-Based EID Estimator for Unknown Continuous-Time Singular Systems

Appl. Sci. 2020, 10(7), 2316; https://doi.org/10.3390/app10072316
by Jason Sheng-Hong Tsai 1, Yang-Fang Chen 1, Te-Jen Su 2,3,*, Chia-Yuan Chang 1, Shu-Mei Guo 4, Leang-San Shieh 5 and Jose I. Canelon 6
Reviewer 1:
Adnan Daraghmeh
Reviewer 2: Anonymous
Appl. Sci. 2020, 10(7), 2316; https://doi.org/10.3390/app10072316
Submission received: 26 February 2020 / Revised: 18 March 2020 / Accepted: 24 March 2020 / Published: 28 March 2020
(This article belongs to the Special Issue Joint Issue with 5th International Symposium on Computer, Consumer and Control (IS3C2020))

Round 1

Reviewer 1 Report

The result in this paper, A Modified Functional Observer-Based EID Estimator for Unknown Continuous-Time Singular Systems, appears to be correct and has potential applications in many subjects. Thus, I recommend this paper to be published in Applied Sciences after carry out the following my comments.

1) The abstract and introduction should be polished to highlight the contribution.
2) The linear time-invariant system is considered in this paper. If there are uncertainties in the systems, does the method proposed in this paper still work well? Or, can this method be extended to uncertain linear systems?

3) The application of the proposed study should further clarified.

4) What are the main features of L2 and H-infinity approximation? Explain in detail about the connection and differences among them.

5) The author should clarify the initial conditions?
6) The conclusion part should be further improved.

 

Author Response

Please see the attachment entitled "Response to Reviewer 1 Comments for applsci-743223R1.pdf".

Author Response File: Author Response.pdf

Reviewer 2 Report

This paper presents a functional observer to estimate the EID for unknown input and output disturbances. The tracking performance of systems subject to high frequency disturbances is much improved. This paper explains advantages of the proposed method over conventional methods.

 

<Inquiry 1>

The reviewer feels, Sections 2 and 3 does not provide an innovative concept. Thus, to delete or shorten these two chapters seem to be a good idea to concentrate on your proposed concept.

 

<Inquiry 2>

In pages 6-8, “modified functional observer with unknown input” is explained. Because it is not easy to follow, please provide a summary of the proposed idea in advance in Section 4.

Author Response

Please see the attachment entitled "Response to Reviewer 2 Comments for applsci-743223R1.pdf".

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

No comments.

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