Volume 22, Issue 1 (JIAEEE Vol.22 No.1 2025)
Journal of Iranian Association of Electrical and Electronics Engineers 2025, 22(1): 25-31 |
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Salahi R, Moezzi M. Investigation of delay linear estimation in self-image-guided ultrasound technique at different focal distances. Journal of Iranian Association of Electrical and Electronics Engineers 2025; 22 (1) :25-31
URL: http://jiaeee.com/article-1-1684-en.html
URL: http://jiaeee.com/article-1-1684-en.html
Amirkabir University of Technology
Abstract: (656 Views)
Precise beam steering to implants is crucial for accurate location determination using a phased array. The self-image-guided ultrasonic (SIG-US) technique offers a localization approach where the implant initially transmits pulses outside the body. These pulses are then received by a transducer array with varying delays. By measuring these delays, reversing them, and applying them in transmitter mode, the beam can be accurately steered towards the implant's location. In this paper, two linear estimation methods for the SIG-US technique are introduced. In the first method, measurements are performed only at the first transducer and the multiples of 8 transducers. In the second method, measurements are performed at the first transducer and the multiples of 4 transducers, and other delays are obtained from their linear approximation. Simulation results show that regardless of the number of array elements, the first method has a power loss of less than 0.8% compared to the ideal SIG-US method for focal distances greater than 40 mm. The second method has a power loss of less than 0.3% for distances of 20 to 50 mm. Both mentioned methods can track the implant location by reducing the number of measurements and power consumption compared to the traditional SIG-US method.
Keywords: linear estimation, phased array, delay, power reduction, SIG-US technique, implant localization.
Type of Article: Research |
Subject:
Electronic
Received: 2023/12/26 | Accepted: 2024/11/5 | Published: 2025/05/29
Received: 2023/12/26 | Accepted: 2024/11/5 | Published: 2025/05/29
Extended Abstract [PDF 176 KB] (5 Download)
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