JPH0117553B2 - - Google Patents

Info

Publication number
JPH0117553B2
JPH0117553B2 JP18234182A JP18234182A JPH0117553B2 JP H0117553 B2 JPH0117553 B2 JP H0117553B2 JP 18234182 A JP18234182 A JP 18234182A JP 18234182 A JP18234182 A JP 18234182A JP H0117553 B2 JPH0117553 B2 JP H0117553B2
Authority
JP
Japan
Prior art keywords
wave
circuit
gate
time
phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP18234182A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5972074A (ja
Inventor
Takeshi Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP18234182A priority Critical patent/JPS5972074A/ja
Publication of JPS5972074A publication Critical patent/JPS5972074A/ja
Publication of JPH0117553B2 publication Critical patent/JPH0117553B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523Details of pulse systems
    • G01S7/526Receivers
    • G01S7/527Extracting wanted echo signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP18234182A 1982-10-18 1982-10-18 水中位置測定装置 Granted JPS5972074A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18234182A JPS5972074A (ja) 1982-10-18 1982-10-18 水中位置測定装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18234182A JPS5972074A (ja) 1982-10-18 1982-10-18 水中位置測定装置

Publications (2)

Publication Number Publication Date
JPS5972074A JPS5972074A (ja) 1984-04-23
JPH0117553B2 true JPH0117553B2 (enrdf_load_stackoverflow) 1989-03-30

Family

ID=16116612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18234182A Granted JPS5972074A (ja) 1982-10-18 1982-10-18 水中位置測定装置

Country Status (1)

Country Link
JP (1) JPS5972074A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS5972074A (ja) 1984-04-23

Similar Documents

Publication Publication Date Title
EP0624253B1 (en) Feature location and display apparatus
US3388372A (en) Determination of ocean sound velocity profiles
US3766518A (en) Apparatus for determining distance
JPS62204733A (ja) 超音波ドプラ診断装置
JPH0117553B2 (enrdf_load_stackoverflow)
US5291458A (en) Method of determining depth values for the surface profile of the bottom of a body of water
JP2528973B2 (ja) 水中探知装置
RU2791163C1 (ru) Способ обнаружения зондирующих сигналов
JP3162873B2 (ja) 船舶用速度測定装置
JP2837484B2 (ja) ドップラー式速度検出装置
JPH11304898A (ja) 位置標定方法及びその装置
JP2009174968A (ja) 障害物検知装置
JPH07174843A (ja) 位置測定における音速補正装置及びその方法
JPH06118169A (ja) 音響測位装置
JPH04252989A (ja) 積雪計
SU851312A1 (ru) Способ измерени вертикальной состав-л ющЕй СКОРОСТи BETPA и уСТРОйСТВО дл ЕгО ОСущЕСТВлЕНи
JPS622182A (ja) 水中位置計測装置
JP3133860B2 (ja) 超音波藻計測装置
JP3493570B2 (ja) 移動体の瞬時位置測定法及び装置
JPS6365897B2 (enrdf_load_stackoverflow)
JPS59226842A (ja) 水温測定装置
JPH05240719A (ja) 超音波遠隔水温測定装置
JPH0829530A (ja) 魚群探知機
JPH0126496B2 (enrdf_load_stackoverflow)
JPH11326512A (ja) 超音波距離計