Single Transmitter Direction Finding Using a Single Moving Omnidirectional Antenna
Round 1
Reviewer 1 Report
First of all, a note: the manuscript has a formatting problem!
The text "Error! Reference source not found." is everywehere, instead of the opportune reference. This makes reading difficult.
Apart from that, the manuscript is good: the idea is solid, and the implementation seems reasonable.
I really appreciate the montecarlo simulation and even more the experimental validation, which often is missing in thsese kind of work.
The results are reasonable, since the premise and the novelty of the paper.
Nevertheless, I suggest to study a little more the impact of the measurement noise in a real scenario, considering the impact of multipath, scattering and all the deterministic bu untreaceble mechanism impacting on the AoA accuracy.
As a side note, I suggest you add a few more references, especially for the reader who is new to this type of application.
Overall, the article is of sufficient quality for publication, in my opinion.
Author Response
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Author Response File: 
Author Response.pdf
Reviewer 2 Report
Authors have contributed excellent work entitled “Single Transmitter Direction Finding Using a Single Moving 2 Antenna” in terms of DOA estimation using single rotating antenna or receiver and provided experimental validation as proof of concept. However , authors have to justify how this work is different than K. Ren, 2022. Here presented proof of concept is done in controlled environment with stable point radiator to be located.
K. Ren, “Direction finding using a single antenna with blade modulation,” IEEE Antennas Wireless Propag. Lett., early access, 2022.
1. It is suggested to present the validation over multiple points over range of 0 to 1800
2. Effect of antenna polarization has not been considered.
3. A detailed analysis of sources of errors in DOA estimation with variation of elevation angle also can be presented.
Author Response
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Author Response File: Author Response.pdf
Reviewer 3 Report
The paper “Single Transmitter Direction Finding Using a Single Moving Antenna” is proposed a single antenna sensor. The impinging signal Angle-of-Arrival (AOA) is estimated using the relative phase and amplitude of the multiple outputs. By exploring the potential of a single moving antenna to provide useful Direction-Finding of a single transmitter. The advantages of a single antenna sensor include the sensor size, the lack of a need for multiple receiver synchronization, time and frequency, and the cost of a system. However, the following comments must be acknowledged.
· The references are not as per the journal template, how can you the citation from [9] onwards? Why not from [1]?
· The references should be sequenced so that the flow/decision of a paper will be accessed.
· The introduction section is too short. Also, add the outline of a paper.
· Some abbreviations are not reported properly such as IMU, etc.
· Figures 2, 3, 4, 7, 8, and 9, need to be more clear.
Author Response
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Author Response File: Author Response.pdf
Round 2
Reviewer 3 Report
Thank you for reporting the suggested comments. Although there are many typos and mistakes in equations, the missing quantities are, vector quantities, equality/inequality signs or belongs to, etc.
Figures 8 and 9, should be updated for y-axis values(up to 10 units).
Author Response
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Author Response File: Author Response.pdf
