Line-of-Sight Stabilization and High-Precision Target Tracking Technology of the Risley Prism System on Motion Platforms

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

The article titled "Line-of-Sight Stabilization and High-Precision Target Tracking Technology of the Risley Prism System on Motion Platforms" proposes a strapdown feedforward stabilization method for a Risley prism system mounted on motion platforms. The authors experimentally demonstrate disturbance rejection and improved tracking accuracy. Here are some comments:

 

• The introduction clearly establishes the context and importance; however, authors could further highlight the novelty by explicitly contrasting their approach with recent LOS stabilization methods.
• The methodology section clearly explains the technical details but would benefit from additional justification for selecting specific parameters (e.g., IMU accuracy and sampling rate).
• Figures 17-19 could benefit from clearer labeling for immediate interpretation of results.
• Were alternative stabilization methods considered, and why was this specific feedforward approach chosen?
• Could the authors clarify the impact of IMU errors on LOS stabilization accuracy?

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

This paper describes the LOS stabilization and high-precision target tracking using Riley prism system on motion platforms. While the paper includes a detailed mathematical analysis of Riley prism system-based LOS stabilization and tracking of stationary target, the experimental results for moving targets are only cursorily described. 

1. Correct the statement on line 27, 'IBCLTCR-F system improves the dynamic response for the detector for target tracking.'
2. Correct grammatical mistakes on line 104.
3. Explain the 'guidance value of the target' (line 137).
4. Correct grammatical mistakes on line 176.
5. Delete the second 'motion' on line 216.
6. Suggest presenting Fig. 7 early to put the problem in context. 
7. Explain the last decision block in Fig. 9. Also, provide more explanation in the caption for Fig. 9.
8. Change phrase to 'under platform motion' on line 250.
9. Does Function 1 in Fig. 11 represents the algorithm in Fig. 9? If so, how does the positive nonlinear feedback of the function affect the performance of the Riley prism system?
10. What is the frequency of IMU measurement (line 298)?
11. A majority of transfer function poles in (13) are in the high frequency region, whereas subsequent disturbance rejection analysis is limited to below 1 Hz.
12. A comparison of figures 17 & 18 indicates that while Fig. 17 plots experimental results, Fig. 18 doesn't appear to be so.
13. Suggest adding frequency domain disturbance rejection for fast target tracking (Sec. 4.3)
14. Explain 'motion quantities' on line 448 and Fig. 24. Do these pertain to the target motion?
15. Correct grammatical mistakes on line 471.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf