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Ultrasonic sensors are widely used in distance measurement for robots. In practice, there is an important problem about the measurement resolution which is the ability to distinguish different targets. This paper is concern about the range resolution of the ultrasonic distance measurement using cross correlation. The highlight model is introduced to describe the resolution playing an important role...
In this paper correlation techniques are discussed to extend the measurement range of an ultrasonic transducer to its side lobes. Broadband coded signals (linear chirps) are used to steer the transducerpsilas radiation pattern. The presented method allows to extend the angle range of the transducer beyond the main lobe for distance measurements and delivers additional information about the angle from...
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