ECHO SOUNDER, ECHO SOUNDING METHOD, AND MULTI-BEAM ECHO SOUNDER
PROBLEM TO BE SOLVED: To provide an echo sounder capable of correcting oscillation of a marine vessel caused by ocean waves without using acceleration sensors.SOLUTION: An echo sounder is provided comprising; a transmission signal generator unit for generating a transmission signal using a pseudo no...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Patent |
| Sprache: | eng ; jpn |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | SASAKURA TOYOKI MATSUO YUKIO |
| description | PROBLEM TO BE SOLVED: To provide an echo sounder capable of correcting oscillation of a marine vessel caused by ocean waves without using acceleration sensors.SOLUTION: An echo sounder is provided comprising; a transmission signal generator unit for generating a transmission signal using a pseudo noise sequence signal; a transmission unit configured to periodically transmit the transmission signal in the form of an ultrasonic wave into water; a reception unit for receiving echoes of the ultrasonic wave; a correlator configured to discriminate echoes corresponding to the transmission signal from others by performing correlation processing on the echoes using the pseudo noise sequence signal, and acquiring raw depth data based on time difference between the transmission signal and the echoes; and an oscillation correction unit configured to suppress an oscillation component by applying oscillation correction to the raw depth data. A period of the transmission signal shall be (2D/Vu), where Vu represents velocity of sound in water and D represents depth, and satisfies the sampling theorem in comparison to the period of oscillation component.SELECTED DRAWING: Figure 33
【課題】加速度センサを使用しないで、船舶に対する波浪によって生じるような動揺を補正することができる音響測深装置を提供する。【解決手段】疑似雑音系列信号によって送信信号を形成する送信信号形成部と、送信信号を周期的に超音波として水中に送出する送信部と、超音波のエコーを受信する受信部と、エコーを疑似雑音系列信号によって相関処理を行うことによって、送信信号と対応するエコーを判別し、送信信号及びエコーの時間差に基づいて深度生データを取得する相関器と、深度生データに対して動揺補正を行うことによって動揺成分を抑圧する動揺補正部とを備え、送信信号の周期は、水中の音波の速度をＶｕとし、深度をＤとする場合に、（２Ｄ／Ｖｕ）以下とされ、且つ動揺成分の周期に比べてサンプリング定理を満足するものとした。【選択図】図３３ |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2018009853A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2018009853A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2018009853A3</originalsourceid><addsrcrecordid>eNrjZLB3dfbwVwj2D_VzcQ3SUUDwPP3cFXxdQzz8XXQUHP1cFHxDfUI8dZ1cHX0VkLXwMLCmJeYUp_JCaW4GJTfXEGcP3dSC_PjU4oLE5NS81JJ4rwAjA0MLAwNLC1NjR2OiFAEAmiUqXw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>ECHO SOUNDER, ECHO SOUNDING METHOD, AND MULTI-BEAM ECHO SOUNDER</title><source>esp@cenet</source><creator>SASAKURA TOYOKI ; MATSUO YUKIO</creator><creatorcontrib>SASAKURA TOYOKI ; MATSUO YUKIO</creatorcontrib><description>PROBLEM TO BE SOLVED: To provide an echo sounder capable of correcting oscillation of a marine vessel caused by ocean waves without using acceleration sensors.SOLUTION: An echo sounder is provided comprising; a transmission signal generator unit for generating a transmission signal using a pseudo noise sequence signal; a transmission unit configured to periodically transmit the transmission signal in the form of an ultrasonic wave into water; a reception unit for receiving echoes of the ultrasonic wave; a correlator configured to discriminate echoes corresponding to the transmission signal from others by performing correlation processing on the echoes using the pseudo noise sequence signal, and acquiring raw depth data based on time difference between the transmission signal and the echoes; and an oscillation correction unit configured to suppress an oscillation component by applying oscillation correction to the raw depth data. A period of the transmission signal shall be (2D/Vu), where Vu represents velocity of sound in water and D represents depth, and satisfies the sampling theorem in comparison to the period of oscillation component.SELECTED DRAWING: Figure 33
【課題】加速度センサを使用しないで、船舶に対する波浪によって生じるような動揺を補正することができる音響測深装置を提供する。【解決手段】疑似雑音系列信号によって送信信号を形成する送信信号形成部と、送信信号を周期的に超音波として水中に送出する送信部と、超音波のエコーを受信する受信部と、エコーを疑似雑音系列信号によって相関処理を行うことによって、送信信号と対応するエコーを判別し、送信信号及びエコーの時間差に基づいて深度生データを取得する相関器と、深度生データに対して動揺補正を行うことによって動揺成分を抑圧する動揺補正部とを備え、送信信号の周期は、水中の音波の速度をＶｕとし、深度をＤとする場合に、（２Ｄ／Ｖｕ）以下とされ、且つ動揺成分の周期に比べてサンプリング定理を満足するものとした。【選択図】図３３</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>2018</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&date=20180118&DB=EPODOC&CC=JP&NR=2018009853A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180118&DB=EPODOC&CC=JP&NR=2018009853A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SASAKURA TOYOKI</creatorcontrib><creatorcontrib>MATSUO YUKIO</creatorcontrib><title>ECHO SOUNDER, ECHO SOUNDING METHOD, AND MULTI-BEAM ECHO SOUNDER</title><description>PROBLEM TO BE SOLVED: To provide an echo sounder capable of correcting oscillation of a marine vessel caused by ocean waves without using acceleration sensors.SOLUTION: An echo sounder is provided comprising; a transmission signal generator unit for generating a transmission signal using a pseudo noise sequence signal; a transmission unit configured to periodically transmit the transmission signal in the form of an ultrasonic wave into water; a reception unit for receiving echoes of the ultrasonic wave; a correlator configured to discriminate echoes corresponding to the transmission signal from others by performing correlation processing on the echoes using the pseudo noise sequence signal, and acquiring raw depth data based on time difference between the transmission signal and the echoes; and an oscillation correction unit configured to suppress an oscillation component by applying oscillation correction to the raw depth data. A period of the transmission signal shall be (2D/Vu), where Vu represents velocity of sound in water and D represents depth, and satisfies the sampling theorem in comparison to the period of oscillation component.SELECTED DRAWING: Figure 33
【課題】加速度センサを使用しないで、船舶に対する波浪によって生じるような動揺を補正することができる音響測深装置を提供する。【解決手段】疑似雑音系列信号によって送信信号を形成する送信信号形成部と、送信信号を周期的に超音波として水中に送出する送信部と、超音波のエコーを受信する受信部と、エコーを疑似雑音系列信号によって相関処理を行うことによって、送信信号と対応するエコーを判別し、送信信号及びエコーの時間差に基づいて深度生データを取得する相関器と、深度生データに対して動揺補正を行うことによって動揺成分を抑圧する動揺補正部とを備え、送信信号の周期は、水中の音波の速度をＶｕとし、深度をＤとする場合に、（２Ｄ／Ｖｕ）以下とされ、且つ動揺成分の周期に比べてサンプリング定理を満足するものとした。【選択図】図３３</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>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLB3dfbwVwj2D_VzcQ3SUUDwPP3cFXxdQzz8XXQUHP1cFHxDfUI8dZ1cHX0VkLXwMLCmJeYUp_JCaW4GJTfXEGcP3dSC_PjU4oLE5NS81JJ4rwAjA0MLAwNLC1NjR2OiFAEAmiUqXw</recordid><startdate>20180118</startdate><enddate>20180118</enddate><creator>SASAKURA TOYOKI</creator><creator>MATSUO YUKIO</creator><scope>EVB</scope></search><sort><creationdate>20180118</creationdate><title>ECHO SOUNDER, ECHO SOUNDING METHOD, AND MULTI-BEAM ECHO SOUNDER</title><author>SASAKURA TOYOKI ; MATSUO YUKIO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2018009853A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2018</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>SASAKURA TOYOKI</creatorcontrib><creatorcontrib>MATSUO YUKIO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SASAKURA TOYOKI</au><au>MATSUO YUKIO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ECHO SOUNDER, ECHO SOUNDING METHOD, AND MULTI-BEAM ECHO SOUNDER</title><date>2018-01-18</date><risdate>2018</risdate><abstract>PROBLEM TO BE SOLVED: To provide an echo sounder capable of correcting oscillation of a marine vessel caused by ocean waves without using acceleration sensors.SOLUTION: An echo sounder is provided comprising; a transmission signal generator unit for generating a transmission signal using a pseudo noise sequence signal; a transmission unit configured to periodically transmit the transmission signal in the form of an ultrasonic wave into water; a reception unit for receiving echoes of the ultrasonic wave; a correlator configured to discriminate echoes corresponding to the transmission signal from others by performing correlation processing on the echoes using the pseudo noise sequence signal, and acquiring raw depth data based on time difference between the transmission signal and the echoes; and an oscillation correction unit configured to suppress an oscillation component by applying oscillation correction to the raw depth data. A period of the transmission signal shall be (2D/Vu), where Vu represents velocity of sound in water and D represents depth, and satisfies the sampling theorem in comparison to the period of oscillation component.SELECTED DRAWING: Figure 33
【課題】加速度センサを使用しないで、船舶に対する波浪によって生じるような動揺を補正することができる音響測深装置を提供する。【解決手段】疑似雑音系列信号によって送信信号を形成する送信信号形成部と、送信信号を周期的に超音波として水中に送出する送信部と、超音波のエコーを受信する受信部と、エコーを疑似雑音系列信号によって相関処理を行うことによって、送信信号と対応するエコーを判別し、送信信号及びエコーの時間差に基づいて深度生データを取得する相関器と、深度生データに対して動揺補正を行うことによって動揺成分を抑圧する動揺補正部とを備え、送信信号の周期は、水中の音波の速度をＶｕとし、深度をＤとする場合に、（２Ｄ／Ｖｕ）以下とされ、且つ動揺成分の周期に比べてサンプリング定理を満足するものとした。【選択図】図３３</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng ; jpn |
| recordid | cdi_epo_espacenet_JP2018009853A |
| source | esp@cenet |
| 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 | ECHO SOUNDER, ECHO SOUNDING METHOD, AND MULTI-BEAM ECHO SOUNDER |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-27T01%3A42%3A50IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=SASAKURA%20TOYOKI&rft.date=2018-01-18&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJP2018009853A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |