Velocity Detection by Ultrasonic Doppler based on Multi-Time Technique Analysis

Sudtana, Sukkan; Prompak, Kriangsak; Suphramit, Suphawadee; Sisuk, Noppadon; Boonjun, Surapol; Wardkein, P.

doi:10.1109/ecti-con47248.2019.8955362

2019 16th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technolo 2019

DOI: 10.1109/ecti-con47248.2019.8955362

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Velocity Detection by Ultrasonic Doppler based on Multi-Time Technique Analysis

Sukkan Sudtana

Kriangsak Prompak

Suphawadee Suphramit

et al.

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2023

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Estimation of Azimuth Angle Using an Ultrasonic Sensor for Automobile

Chandrasegar

Koh

2023

Remote Sensing

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A typical ultrasonic sensor has a major lobe that extends beyond 45 degrees. Because the wide beam of the ultrasonic sensor’s main lobe, which is used for straightforward distance measurement, has a low angular resolution, conventional methods such as incidence angle and linear angle measurements cannot accurately determine the azimuthal angle. Determining whether one or more objects are present in a single beam is also challenging. In this study, the azimuthal angles of two or more objects placed beneath a single beam are determined by the Doppler frequency shift. An ultrasonic sensor is mounted on an automobile to transmit and receive an ultrasound when the car moves towards stationary objects. The sensor picks up the object’s reflected Doppler shift signal. The azimuth angle of the objects is determined by estimating the received Doppler shift signal using a standard signal processing method. Near-field motion detection systems and autonomous driving heavily rely on the ability to evaluate the azimuthal angle of objects in a vehicle’s surroundings using the Doppler Effect. These are examples of low-cost technology and active safety, which the experimental results support. Based on the results and error estimation, there is an average error of less than 3% between measured and computed values.

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Estimation of Azimuth Angle Using an Ultrasonic Sensor for Automobile

Chandrasegar

Koh

2023

Remote Sensing

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Velocity Detection by Ultrasonic Doppler based on Multi-Time Technique Analysis

Cited by 1 publication

References 6 publications

Estimation of Azimuth Angle Using an Ultrasonic Sensor for Automobile

Estimation of Azimuth Angle Using an Ultrasonic Sensor for Automobile

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