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| Content Provider | IET Digital Library |
|---|---|
| Author | Tsuchida, H. |
| Abstract | One of the serious limitations in frequency-modulated continuous wave light detection and ranging (FMCW-LiDAR) is the maximum ranging distance as imposed by the coherence of light sources. The author proposes and demonstrates a new technique for overcoming the limitation using differential detection scheme between the frequency-fixed carrier and frequency-modulated subcarrier, which are generated from a single laser source. In the proof-of-principle experiment, two reflection points with a 3 m separation are clearly resolved at distances 192.2 m and 1.504 km using a distributed feedback (DFB) laser with the coherence length of 70 m. |
| Starting Page | 614 |
| Ending Page | 616 |
| Page Count | 3 |
| ISSN | 00135194 |
| Volume Number | 56 |
| e-ISSN | 1350911X |
| Issue Number | Issue 12, Jun (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/56/12 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2020.0186 |
| Journal | Electronics Letters |
| Publisher Date | 2020-03-27 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Coherence Length CW Radar DFB Laser Differential Detection Scheme Differential FMCW-LiDAR FM Radar Frequency Modulation Frequency-fixed Carrier Frequency-modulated Continuous Wave Light Detection Frequency-modulated Subcarrier Laser Coherence Light Source Maximum Ranging Distance Modulation And Coding Method Optical Modulation Optical Radar Proof-of-principle Experiment Single Laser Source Wavelength 1.504 Km Wavelength 192.2 M Wavelength 3.0 M Wavelength 70.0 M |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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