Orthogonal Chirp-Based Ultrasonic Positioning
This paper presents a chirp based ultrasonic positioning system (UPS) using orthogonal chirp waveforms. In the proposed method, multiple transmitters can simultaneously transmit chirp signals, as a result, it can efficiently utilize the entire available frequency spectrum. The fundamental idea behin...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-04-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/17/5/976 |
| _version_ | 1798040224079544320 |
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| author | Mohammad Omar Khyam Shuzhi Sam Ge Xinde Li Mark Pickering |
| author_facet | Mohammad Omar Khyam Shuzhi Sam Ge Xinde Li Mark Pickering |
| author_sort | Mohammad Omar Khyam |
| collection | DOAJ |
| description | This paper presents a chirp based ultrasonic positioning system (UPS) using orthogonal chirp waveforms. In the proposed method, multiple transmitters can simultaneously transmit chirp signals, as a result, it can efficiently utilize the entire available frequency spectrum. The fundamental idea behind the proposed multiple access scheme is to utilize the oversampling methodology of orthogonal frequency-division multiplexing (OFDM) modulation and orthogonality of the discrete frequency components of a chirp waveform. In addition, the proposed orthogonal chirp waveforms also have all the advantages of a classical chirp waveform. Firstly, the performance of the waveforms is investigated through correlation analysis and then, in an indoor environment, evaluated through simulations and experiments for ultrasonic (US) positioning. For an operational range of approximately 1000 mm, the positioning root-mean-square-errors (RMSEs) &90% error were 4.54 mm and 6.68 mm respectively. |
| first_indexed | 2024-04-11T22:04:30Z |
| format | Article |
| id | doaj.art-bfc9731b3dd343ba885139e7617e9b0c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:04:30Z |
| publishDate | 2017-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-bfc9731b3dd343ba885139e7617e9b0c2022-12-22T04:00:46ZengMDPI AGSensors1424-82202017-04-0117597610.3390/s17050976s17050976Orthogonal Chirp-Based Ultrasonic PositioningMohammad Omar Khyam0Shuzhi Sam Ge1Xinde Li2Mark Pickering3Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117580, SingaporeDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore 117580, SingaporeDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore 117580, SingaporeSchool of Engineering and Information Technology, University of New South Wales, Canberra, Campbell ACT 2612, AustraliaThis paper presents a chirp based ultrasonic positioning system (UPS) using orthogonal chirp waveforms. In the proposed method, multiple transmitters can simultaneously transmit chirp signals, as a result, it can efficiently utilize the entire available frequency spectrum. The fundamental idea behind the proposed multiple access scheme is to utilize the oversampling methodology of orthogonal frequency-division multiplexing (OFDM) modulation and orthogonality of the discrete frequency components of a chirp waveform. In addition, the proposed orthogonal chirp waveforms also have all the advantages of a classical chirp waveform. Firstly, the performance of the waveforms is investigated through correlation analysis and then, in an indoor environment, evaluated through simulations and experiments for ultrasonic (US) positioning. For an operational range of approximately 1000 mm, the positioning root-mean-square-errors (RMSEs) &90% error were 4.54 mm and 6.68 mm respectively.http://www.mdpi.com/1424-8220/17/5/976multiple accesstime-of-flightorthogonal chirpultrasonic indoor positioning |
| spellingShingle | Mohammad Omar Khyam Shuzhi Sam Ge Xinde Li Mark Pickering Orthogonal Chirp-Based Ultrasonic Positioning Sensors multiple access time-of-flight orthogonal chirp ultrasonic indoor positioning |
| title | Orthogonal Chirp-Based Ultrasonic Positioning |
| title_full | Orthogonal Chirp-Based Ultrasonic Positioning |
| title_fullStr | Orthogonal Chirp-Based Ultrasonic Positioning |
| title_full_unstemmed | Orthogonal Chirp-Based Ultrasonic Positioning |
| title_short | Orthogonal Chirp-Based Ultrasonic Positioning |
| title_sort | orthogonal chirp based ultrasonic positioning |
| topic | multiple access time-of-flight orthogonal chirp ultrasonic indoor positioning |
| url | http://www.mdpi.com/1424-8220/17/5/976 |
| work_keys_str_mv | AT mohammadomarkhyam orthogonalchirpbasedultrasonicpositioning AT shuzhisamge orthogonalchirpbasedultrasonicpositioning AT xindeli orthogonalchirpbasedultrasonicpositioning AT markpickering orthogonalchirpbasedultrasonicpositioning |