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A new method for robotic gas-source localization is proposed. Extensive research efforts have been made to develop robots that can autonomously search for gas sources. Successful demonstrations on gas source localization have been reported mostly for experiments conducted in simple environments, e.g., in a uniform unidirectional airflow field in a wind tunnel. However, to locate a gas source in a...
In CDMA communications with radio waves, binary spreading sequences are used as bipolar codes taking +1 or −1. On the other hand, in on-off keying modulation such as optical communications, spreading sequences are used as unipolar codes taking 1 or 0. In this paper, performances of asynchronous SIK (sequence inversion keyed) DS/CDMA systems using unipolar codes are evaluated and compared with normal...
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