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          <dc:title>超音波バースト信号のための複数センサを用いた周波数読み取りに関する検討</dc:title>
          <dc:title xml:lang="en">A Study on Frequency Estimation by using Multiple Ultrasonic Sensors for Burst Signals</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName>松嶋, 俊暁</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>羽多野, 裕之</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>眞田, 耕輔</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>森, 香津夫</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>辻井, 明日香</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName>笠島, 崇</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>山里, 敬也</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Toshiaki, Matsushima</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Hiroyuki, Hatano</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Kosuke, Sanada</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Kazuo, Mori</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Asuka, Tsujii</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Takashi, Kasashima</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Takaya, Yamazato</jpcoar:creatorName>
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          <datacite:description descriptionType="Other">測定対象の動き把握や測位をすべく，対象物から到来する超音波バースト信号の周波数を推定するアルゴリズムを検討する．従来は FFT による周波数推定が主に使われてきた．しかし，受信信号のサンプル数が少なくなってしまうような環境では周波数推定誤差が大きくなる課題がある．検出可能範囲の拡大や検出可能障害物の複数化に向けてバースト信号を用いるべく，サンプル数が少ない環境で推定可能な新たな周波数推定手法が望まれる．そこで，本研究では新たな周波数推定法として，3 つの周波数応答特性が異なる超音波センサを用いて超音波信号の電圧瞬時値から周波数を推定する手法を提案する．シミュレーションによる数値例を通して提案手法の有効性を示す．</datacite:description>
          <datacite:description descriptionType="Other">We discuss a frequency estimation algorithm for an incoming ultrasonic burst signal in order to determine the motion and position of a measurement target. Conventionally, frequency estimation by FFT has been mainly used. However, the error of the frequency estimation becomes large under the condition with the small number of received signal samples. In order to expand the detectable range or increase the number of detectable targets, a new frequency estimation method for burst signals, which properly operates under such a condition, is required. In this paper, we propose a novel frequency estimation method that estimates the frequency from the instantaneous value of ultrasonic signals by using three ultrasonic sensors with diﬀerent frequency response characteristics. The eﬀectiveness of the proposed method is also shown through numerical examples by using computer simulations.</datacite:description>
          <dc:publisher xml:lang="ja">情報処理学会</dc:publisher>
          <datacite:date dateType="Issued">2022-09-09</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_18gh">technical report</dc:type>
          <jpcoar:identifier identifierType="URI">https://ipsj.ixsq.nii.ac.jp/records/220156</jpcoar:identifier>
          <jpcoar:sourceIdentifier identifierType="ISSN">2188-8965</jpcoar:sourceIdentifier>
          <jpcoar:sourceIdentifier identifierType="NCID">AA11515904</jpcoar:sourceIdentifier>
          <jpcoar:sourceTitle>研究報告高度交通システムとスマートコミュニティ（ITS）</jpcoar:sourceTitle>
          <jpcoar:volume>2022-ITS-90</jpcoar:volume>
          <jpcoar:issue>7</jpcoar:issue>
          <jpcoar:pageStart>1</jpcoar:pageStart>
          <jpcoar:pageEnd>6</jpcoar:pageEnd>
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