Short Transient Parameter-Varying IIR Filter Based on Analog Oscillatory System

Round 1

Reviewer 1 Report

In Fig. 1 please consider using a dotted line for one of the series.

Author Response

Dear Reviewer,

We would like to thank you for your comment regarding our paper. Your suggestion has been incorporated in the revised manuscript.

Reviewer comment:

"In Fig. 1 please consider using a dotted line for one of the series."

Fig.1 has been replaced according to the suggestion.

Sincerely yours, 

Piotr Okoniewski and Jacek Piskorowski

Reviewer 2 Report

The Authors discuss short transient parameter varying approach to  improve the settling time and to reduce the overshoot in IIR filter. The proposed approach is novel and effective and the paper is is well and thoroughly written. It can be accepted subject to minor revision described below.

Minor points.

l. 41: provide more details about the extensions proposed in the paper. 

l. 107: describe optimization procedure mentioned in the text

English:

l. 33: delete "previously"

l. 120: delete "proved to"

Author Response

Dear Reviewer,

We would like to thank you for your comments regarding our paper. Your suggestions have been incorporated in the revised manuscript.

Reviewer comments:

l. 41: provide more details about the extensions proposed in the paper. 

Added to the text:

“We propose to use the known analog oscillatory system as the base for the digital time-varying filtering structure. We also present a new method for obtaining the sets of coefficients that improve the transient response of the considered system.”

l. 107: describe optimization procedure mentioned in the text 

Added to the text:

“The fitness of each candidate in the mentioned routine is evaluated as the time value needed to achieve the 2% border around the steady state of the time-varying filter prototype response to the step signal.“

English:
l. 33: delete "previously"
l. 120: delete "proved to"

Done.

Sincerely yours, 

Piotr Okoniewski and Jacek Piskorowski