| Summary |
A single ultrasonic sensor has a limited detection range of less than 4m. Based on previous study, 8 ultrasonic sensors arranged in an array can increase that range up to 20 m, however the experiment was only limited to target detection at static conditions. In this study, we introduce the use of a Kalman Filter to determine speed and distance of an approaching target using the ultrasonic sensor array. The distance information obtained from the estimation is then used to attempt to localize the position of the target using the trilateration technique. |
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