PlumX Metrics
Embed PlumX Metrics

Frequency Acquisition Approach in Polarization-Modulated Ranging Based on Lock-in Analysis

Photonics, ISSN: 2304-6732, Vol: 10, Issue: 12
2023
  • 0
    Citations
  • 0
    Usage
  • 1
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Captures
    1
  • Mentions
    1
    • News Mentions
      1
      • 1

Most Recent News

Changzhou University Researcher Provides New Study Findings on Photonics (Frequency Acquisition Approach in Polarization-Modulated Ranging Based on Lock-in Analysis)

2023 DEC 25 (NewsRx) -- By a News Reporter-Staff News Editor at NewsRx Science Daily -- New study results on photonics have been published. According

Article Description

In this study, we propose a frequency measurement and estimation approach based on a lock-in analysis for precise frequency determination in polarization-modulated ranging signals. In this method, the modulation signal of an electro-optic modulator (EOM) is manipulated to introduce an intermediate frequency (IF) component into the detected signal. Subsequently, the detected signal is analyzed using lock-in analysis techniques to extract the necessary frequency component, and a new swept frequency waveform is generated, facilitating the frequency acquisition and distance calculation. We conducted theoretical derivations, simulations and experiments to validate the effectiveness of this method. The research findings suggest that our method can enhance the accuracy of frequency measurements by a factor of approximately ten when compared to a direct detection approach, leading to a corresponding improvement in ranging precision. Furthermore, even with larger sweep step sizes and smaller modulation frequencies, the proposed approach can achieve superior ranging results.

Bibliographic Details

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know