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| Content Provider | IET Digital Library |
|---|---|
| Author | Liu, Zuo Ya Chen, Rui Zhi Ye, Feng Guo, Guang Yi Li, Zheng Qian, Long |
| Abstract | The time-of-arrival (TOA) estimation method is an important ranging and positioning technology for indoor localisation and navigation. In this Letter, a novel TOA estimation method for smartphones based on a built-in microphone sensor is proposed, which utilises the propagation delay between optical and acoustic signals to achieve distance estimation. Unlike other TOA estimation technologies based on multi-sensors, a single MEMS microphone of a smartphone is used as the receiving sensor for both optical and acoustic signals, which is beneficial for eliminating the synchronisation error and improving ranging precision. Experimental results demonstrate that the proposed TOA estimation method is effective and accurate with an average ranging error of <0.29 m under a signal-to-noise ratio (SNR) of 1.18 dB for the smartphones tested in this work. |
| Starting Page | 1280 |
| Ending Page | 1283 |
| Page Count | 4 |
| ISSN | 00135194 |
| Volume Number | 56 |
| e-ISSN | 1350911X |
| Issue Number | Issue 23, Nov (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/56/23 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2020.2161 |
| Journal | Electronics Letters |
| Publisher Date | 2020-10-06 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Acoustic Signal Average Ranging Error Distance Estimation Indoor Localisation Indoor Radio Microphone Sensor Microphones Microsensor Microsensors And Nanosensors Mobile Radio System Multisensors Noise Figure 1.18 DB Novel TOA Estimation Method Optical Signal Propagation Delay Radio Navigation And Direction Finding Ranging Positioning Technology Ranging Precision Receiving Sensor Sensor Fusion Signal Processing And Detection Single MEMS Microphone Size 0.29 M Smart Phones Smartphone Sonic And Ultrasonic Transducers Synchronisation Synchronisation Error Time-of-arrival Estimation Time-of-arrival Estimation Method TOA Estimation Technology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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