Abstract
One of the most severe problems in conventional mobile robot sonar sensing is from the literature known as »crosstalk«. This paper addresses the crosstalk-problem and presents first results of a new approach which enaoles a mobile robot the simultaneous firing of its sonar sensors. At the same time frequent misreadings caused by crosstalk or external ultrasound sources are eliminated. This is achieved by carefully designing the emitted burst, i.e. by using appropriate pseudo-random sequences together with a matched filter technique. Results from physical experiments are presented.
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