Doppler Measurement of Modulated Light for High Speed Vehicles
Technical details associated with a novel relative motion sensor system are elaborated in the paper. By utilizing the Doppler effect, the optical sensor system estimates the relative motion rates between the sensor and the moving object equipped with modulating light sources and relatively inexpensi...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/4/1444 |
| _version_ | 1797476778651942912 |
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| author | Kookjin Sung Manoranjan Majji |
| author_facet | Kookjin Sung Manoranjan Majji |
| author_sort | Kookjin Sung |
| collection | DOAJ |
| description | Technical details associated with a novel relative motion sensor system are elaborated in the paper. By utilizing the Doppler effect, the optical sensor system estimates the relative motion rates between the sensor and the moving object equipped with modulating light sources and relatively inexpensive electrical components. A transimpedance amplifier (TIA) sensing circuit is employed to measure the Doppler shift exhibited by the amplitude modulated light sources on the moving platform. Implementation details associated with the amplitude modulation and photo-detection processes are discussed using representative hardware elements. A heterodyne mixing process with a reference signal is shown to improve the signal-to-noise ratios of the Doppler shift estimation processing pipeline. Benchtop prototype experiments are used to demonstrate the utility of the proposed technology for relative motion estimation applications. |
| first_indexed | 2024-03-09T21:06:32Z |
| format | Article |
| id | doaj.art-c975eea7202e4143996eada09a469113 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T21:06:32Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-c975eea7202e4143996eada09a4691132023-11-23T21:59:38ZengMDPI AGSensors1424-82202022-02-01224144410.3390/s22041444Doppler Measurement of Modulated Light for High Speed VehiclesKookjin Sung0Manoranjan Majji1Aerospace Engineering Department, Texas A&M University, College Station, TX 77843, USAAerospace Engineering Department, Texas A&M University, College Station, TX 77843, USATechnical details associated with a novel relative motion sensor system are elaborated in the paper. By utilizing the Doppler effect, the optical sensor system estimates the relative motion rates between the sensor and the moving object equipped with modulating light sources and relatively inexpensive electrical components. A transimpedance amplifier (TIA) sensing circuit is employed to measure the Doppler shift exhibited by the amplitude modulated light sources on the moving platform. Implementation details associated with the amplitude modulation and photo-detection processes are discussed using representative hardware elements. A heterodyne mixing process with a reference signal is shown to improve the signal-to-noise ratios of the Doppler shift estimation processing pipeline. Benchtop prototype experiments are used to demonstrate the utility of the proposed technology for relative motion estimation applications.https://www.mdpi.com/1424-8220/22/4/1444Doppler sensingtransimpedance amplifiersignal modulationrate estimation |
| spellingShingle | Kookjin Sung Manoranjan Majji Doppler Measurement of Modulated Light for High Speed Vehicles Sensors Doppler sensing transimpedance amplifier signal modulation rate estimation |
| title | Doppler Measurement of Modulated Light for High Speed Vehicles |
| title_full | Doppler Measurement of Modulated Light for High Speed Vehicles |
| title_fullStr | Doppler Measurement of Modulated Light for High Speed Vehicles |
| title_full_unstemmed | Doppler Measurement of Modulated Light for High Speed Vehicles |
| title_short | Doppler Measurement of Modulated Light for High Speed Vehicles |
| title_sort | doppler measurement of modulated light for high speed vehicles |
| topic | Doppler sensing transimpedance amplifier signal modulation rate estimation |
| url | https://www.mdpi.com/1424-8220/22/4/1444 |
| work_keys_str_mv | AT kookjinsung dopplermeasurementofmodulatedlightforhighspeedvehicles AT manoranjanmajji dopplermeasurementofmodulatedlightforhighspeedvehicles |