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A Simple Photonic System for DFS and AOA Simultaneous Measurement

Photonics, ISSN: 2304-6732, Vol: 9, Issue: 12
2022
  • 4
    Citations
  • 0
    Usage
  • 0
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    4
    • Citation Indexes
      4
  • Mentions
    1
    • News Mentions
      1
      • 1

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Findings in Photonics Reported from Chinese Academy of Sciences (A Simple Photonic System for DFS and AOA Simultaneous Measurement)

2023 JAN 10 (NewsRx) -- By a News Reporter-Staff News Editor at NewsRx Science Daily -- A new study on photonics is now available. According

Article Description

A simple photonics-based dual-channel system is proposed to simultaneously measure the Doppler frequency shift (DFS) and angle of arrival (AOA) of microwave signals. The system applies two parallel push–pull Mach–Zehnder modulators (MZMs) for carrier suppression dual-sideband (CS-DSB) modulation. The introduction of the reference signal results in a DFS measurement without direction ambiguity. The DFS can be determined by measuring the frequency of the down-converted intermediate frequency (IF) signal, and the AOA can be calculated by comparing the phase shift of the two channels. A proof-of-concept experiment shows that the DFS measurement error is less than 0.4 Hz during ±100 kHz, and the AOA measurement error is within 1.5° in a range of 0–70°.

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