UNDERWATER DETECTION DEVICE AND UNDERWATER DETECTION METHOD

To provide an underwater detection device which detects both a shoal of fish and a trawl fishing gear, and can display echos thereof.SOLUTION: A transmission transducer 2 transmits transmission waves to the underwater, and a reception transducer 2 receives receiving waves including reflection of the...

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Hauptverfasser: DUBUIS JEROME, ROGER SAETRE, OKUNISHI SATORU, NAGAI SANAE
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ROGER SAETRE
OKUNISHI SATORU
NAGAI SANAE
description To provide an underwater detection device which detects both a shoal of fish and a trawl fishing gear, and can display echos thereof.SOLUTION: A transmission transducer 2 transmits transmission waves to the underwater, and a reception transducer 2 receives receiving waves including reflection of the transmission waves and generates a receiving signal. A Doppler shift calculation part 11 calculates a frequency shift amount to the transmission wave of the receiving waves. From the receiving signal, a first signal processing part 12 acquires a first echo signal based on a frequency shift amount, and a second signal processing part 13 acquires a second echo signal independently from the frequency shift amount. The first echo signal is acquired from the receiving signal corresponding to a first direction range R1, and the second echo signal is acquired from the receiving signal corresponding to a second direction range R2. A video signal generation part 14 generates an echo video signal for displaying an echo on a display part 5 based on the first and second echo signals.SELECTED DRAWING: Figure 4 【課題】魚群及びトロール漁具の両方を探知して、それらのエコーを表示させることが可能な水中探知装置を提供する。【解決手段】送信トランスデューサ2は、水中に送信波を送信し、受信トランスデューサ2は、送信波の反射を含む受信波を受信して受信信号を生成する。ドップラーシフト算出部11は、受信波の送信波に対する周波数シフト量を算出する。受信信号から、第1信号処理部12が、周波数シフト量に基づいて第1エコー信号を取得し、第2信号処理部13が、周波数シフト量とは独立して第2エコー信号を取得する。第1エコー信号は、第1方向範囲R1に対応する受信信号から取得され、第2エコー信号は、第2方向範囲R2に対応する受信信号から取得される。映像信号生成部14は、第1及び第2エコー信号に基づいて、エコーを表示部5に表示させるためのエコー映像信号を生成する。【選択図】図4
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A Doppler shift calculation part 11 calculates a frequency shift amount to the transmission wave of the receiving waves. From the receiving signal, a first signal processing part 12 acquires a first echo signal based on a frequency shift amount, and a second signal processing part 13 acquires a second echo signal independently from the frequency shift amount. The first echo signal is acquired from the receiving signal corresponding to a first direction range R1, and the second echo signal is acquired from the receiving signal corresponding to a second direction range R2. A video signal generation part 14 generates an echo video signal for displaying an echo on a display part 5 based on the first and second echo signals.SELECTED DRAWING: Figure 4 【課題】魚群及びトロール漁具の両方を探知して、それらのエコーを表示させることが可能な水中探知装置を提供する。【解決手段】送信トランスデューサ2は、水中に送信波を送信し、受信トランスデューサ2は、送信波の反射を含む受信波を受信して受信信号を生成する。ドップラーシフト算出部11は、受信波の送信波に対する周波数シフト量を算出する。受信信号から、第1信号処理部12が、周波数シフト量に基づいて第1エコー信号を取得し、第2信号処理部13が、周波数シフト量とは独立して第2エコー信号を取得する。第1エコー信号は、第1方向範囲R1に対応する受信信号から取得され、第2エコー信号は、第2方向範囲R2に対応する受信信号から取得される。映像信号生成部14は、第1及び第2エコー信号に基づいて、エコーを表示部5に表示させるためのエコー映像信号を生成する。【選択図】図4</description><language>eng ; jpn</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; PHYSICS ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; TESTING</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20200130&amp;DB=EPODOC&amp;CC=JP&amp;NR=2020016635A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20200130&amp;DB=EPODOC&amp;CC=JP&amp;NR=2020016635A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DUBUIS JEROME</creatorcontrib><creatorcontrib>ROGER SAETRE</creatorcontrib><creatorcontrib>OKUNISHI SATORU</creatorcontrib><creatorcontrib>NAGAI SANAE</creatorcontrib><title>UNDERWATER DETECTION DEVICE AND UNDERWATER DETECTION METHOD</title><description>To provide an underwater detection device which detects both a shoal of fish and a trawl fishing gear, and can display echos thereof.SOLUTION: A transmission transducer 2 transmits transmission waves to the underwater, and a reception transducer 2 receives receiving waves including reflection of the transmission waves and generates a receiving signal. A Doppler shift calculation part 11 calculates a frequency shift amount to the transmission wave of the receiving waves. From the receiving signal, a first signal processing part 12 acquires a first echo signal based on a frequency shift amount, and a second signal processing part 13 acquires a second echo signal independently from the frequency shift amount. The first echo signal is acquired from the receiving signal corresponding to a first direction range R1, and the second echo signal is acquired from the receiving signal corresponding to a second direction range R2. A video signal generation part 14 generates an echo video signal for displaying an echo on a display part 5 based on the first and second echo signals.SELECTED DRAWING: Figure 4 【課題】魚群及びトロール漁具の両方を探知して、それらのエコーを表示させることが可能な水中探知装置を提供する。【解決手段】送信トランスデューサ2は、水中に送信波を送信し、受信トランスデューサ2は、送信波の反射を含む受信波を受信して受信信号を生成する。ドップラーシフト算出部11は、受信波の送信波に対する周波数シフト量を算出する。受信信号から、第1信号処理部12が、周波数シフト量に基づいて第1エコー信号を取得し、第2信号処理部13が、周波数シフト量とは独立して第2エコー信号を取得する。第1エコー信号は、第1方向範囲R1に対応する受信信号から取得され、第2エコー信号は、第2方向範囲R2に対応する受信信号から取得される。映像信号生成部14は、第1及び第2エコー信号に基づいて、エコーを表示部5に表示させるためのエコー映像信号を生成する。【選択図】図4</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAO9XNxDQp3DHENUnBxDXF1DvH09wOywjydXRUc_VwUsMr7uoZ4-LvwMLCmJeYUp_JCaW4GJTfXEGcP3dSC_PjU4oLE5NS81JJ4rwAjAyMDA0MzM2NTR2OiFAEAPXApzA</recordid><startdate>20200130</startdate><enddate>20200130</enddate><creator>DUBUIS JEROME</creator><creator>ROGER SAETRE</creator><creator>OKUNISHI SATORU</creator><creator>NAGAI SANAE</creator><scope>EVB</scope></search><sort><creationdate>20200130</creationdate><title>UNDERWATER DETECTION DEVICE AND UNDERWATER DETECTION METHOD</title><author>DUBUIS JEROME ; ROGER SAETRE ; OKUNISHI SATORU ; NAGAI SANAE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2020016635A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2020</creationdate><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>MEASURING</topic><topic>PHYSICS</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>DUBUIS JEROME</creatorcontrib><creatorcontrib>ROGER SAETRE</creatorcontrib><creatorcontrib>OKUNISHI SATORU</creatorcontrib><creatorcontrib>NAGAI SANAE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DUBUIS JEROME</au><au>ROGER SAETRE</au><au>OKUNISHI SATORU</au><au>NAGAI SANAE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>UNDERWATER DETECTION DEVICE AND UNDERWATER DETECTION METHOD</title><date>2020-01-30</date><risdate>2020</risdate><abstract>To provide an underwater detection device which detects both a shoal of fish and a trawl fishing gear, and can display echos thereof.SOLUTION: A transmission transducer 2 transmits transmission waves to the underwater, and a reception transducer 2 receives receiving waves including reflection of the transmission waves and generates a receiving signal. A Doppler shift calculation part 11 calculates a frequency shift amount to the transmission wave of the receiving waves. From the receiving signal, a first signal processing part 12 acquires a first echo signal based on a frequency shift amount, and a second signal processing part 13 acquires a second echo signal independently from the frequency shift amount. The first echo signal is acquired from the receiving signal corresponding to a first direction range R1, and the second echo signal is acquired from the receiving signal corresponding to a second direction range R2. A video signal generation part 14 generates an echo video signal for displaying an echo on a display part 5 based on the first and second echo signals.SELECTED DRAWING: Figure 4 【課題】魚群及びトロール漁具の両方を探知して、それらのエコーを表示させることが可能な水中探知装置を提供する。【解決手段】送信トランスデューサ2は、水中に送信波を送信し、受信トランスデューサ2は、送信波の反射を含む受信波を受信して受信信号を生成する。ドップラーシフト算出部11は、受信波の送信波に対する周波数シフト量を算出する。受信信号から、第1信号処理部12が、周波数シフト量に基づいて第1エコー信号を取得し、第2信号処理部13が、周波数シフト量とは独立して第2エコー信号を取得する。第1エコー信号は、第1方向範囲R1に対応する受信信号から取得され、第2エコー信号は、第2方向範囲R2に対応する受信信号から取得される。映像信号生成部14は、第1及び第2エコー信号に基づいて、エコーを表示部5に表示させるためのエコー映像信号を生成する。【選択図】図4</abstract><oa>free_for_read</oa></addata></record>
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subjects ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
TESTING
title UNDERWATER DETECTION DEVICE AND UNDERWATER DETECTION METHOD
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