JPS55126876A - Underwater transmitter-receiver using discrimination code - Google Patents

Underwater transmitter-receiver using discrimination code

Info

Publication number
JPS55126876A
JPS55126876A JP3536479A JP3536479A JPS55126876A JP S55126876 A JPS55126876 A JP S55126876A JP 3536479 A JP3536479 A JP 3536479A JP 3536479 A JP3536479 A JP 3536479A JP S55126876 A JPS55126876 A JP S55126876A
Authority
JP
Japan
Prior art keywords
codes
modulated
correlation
code
group
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.)
Pending
Application number
JP3536479A
Other languages
Japanese (ja)
Inventor
Shoichi Takara
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.)
Japan Radio Co Ltd
Original Assignee
Japan Radio 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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP3536479A priority Critical patent/JPS55126876A/en
Publication of JPS55126876A publication Critical patent/JPS55126876A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/42—Simultaneous measurement of distance and other co-ordinates

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To obtain the direction, distance and reflection intensity of a reflector stably at a high speed by emitting tone-burst signals, modulated by binary codes bearing no correlation, in respective directions simultaneously or in sequence and by sorting received codes by discriminating. CONSTITUTION:Code generator 5 transmits at the same time M-series codes bearing no correlation. Carriers from carrier oscillator 4 are modulated by those codes and then amplified respectively by a group of transmitting amplifiers 2a, 2b...2n before being radiated as acoustic waves from a group of transducers 1a, 1b...1n. Reflected waves from a reflector under water are converted by receiving transducer 6 into electric signals, which are inputted to code sorter 9 by way of receiving amplifier 7 and detector 8. Code sorter 9 sorts acoustic waves arriving at various angles and they are displayed by display unit 10.
JP3536479A 1979-03-26 1979-03-26 Underwater transmitter-receiver using discrimination code Pending JPS55126876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3536479A JPS55126876A (en) 1979-03-26 1979-03-26 Underwater transmitter-receiver using discrimination code

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3536479A JPS55126876A (en) 1979-03-26 1979-03-26 Underwater transmitter-receiver using discrimination code

Publications (1)

Publication Number Publication Date
JPS55126876A true JPS55126876A (en) 1980-10-01

Family

ID=12439835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3536479A Pending JPS55126876A (en) 1979-03-26 1979-03-26 Underwater transmitter-receiver using discrimination code

Country Status (1)

Country Link
JP (1) JPS55126876A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01257288A (en) * 1987-11-24 1989-10-13 Japan Radio Co Ltd Fish detector
JPH02165086A (en) * 1988-12-20 1990-06-26 Japan Radio Co Ltd Radar
JP2009069022A (en) * 2007-09-13 2009-04-02 Panasonic Corp Radar device, its control method and vehicle
JP2009128299A (en) * 2007-11-27 2009-06-11 Nippon Soken Inc Device and system for detecting object azimuth
JP2011526680A (en) * 2008-07-03 2011-10-13 アンテオープ Antenna-coded emission / reception method and apparatus including use in radar
JP2019066208A (en) * 2017-09-28 2019-04-25 本多電子株式会社 Ultrasonic sonar device
CN110488304A (en) * 2018-04-14 2019-11-22 科达澳克托普斯集团公司 Pseudo-random frequency sonar ping pulse generates
JPWO2022071522A1 (en) * 2020-10-02 2022-04-07
WO2023126219A1 (en) * 2021-12-28 2023-07-06 Uab Deeper Scanning a body of water with a fishing sonar apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01257288A (en) * 1987-11-24 1989-10-13 Japan Radio Co Ltd Fish detector
JPH02165086A (en) * 1988-12-20 1990-06-26 Japan Radio Co Ltd Radar
JP2009069022A (en) * 2007-09-13 2009-04-02 Panasonic Corp Radar device, its control method and vehicle
JP2009128299A (en) * 2007-11-27 2009-06-11 Nippon Soken Inc Device and system for detecting object azimuth
JP4704412B2 (en) * 2007-11-27 2011-06-15 株式会社日本自動車部品総合研究所 Object orientation detection apparatus and object orientation detection system
JP2011526680A (en) * 2008-07-03 2011-10-13 アンテオープ Antenna-coded emission / reception method and apparatus including use in radar
JP2019066208A (en) * 2017-09-28 2019-04-25 本多電子株式会社 Ultrasonic sonar device
CN110488304A (en) * 2018-04-14 2019-11-22 科达澳克托普斯集团公司 Pseudo-random frequency sonar ping pulse generates
JP2020046415A (en) * 2018-04-14 2020-03-26 コーダ・オクトパス・グループ・インコーポレイテッド Pseudo random frequency sonar ping generation
JPWO2022071522A1 (en) * 2020-10-02 2022-04-07
WO2022071522A1 (en) * 2020-10-02 2022-04-07 株式会社アイシン Ultrasonic wave generator, vibrator, and object detection device
WO2023126219A1 (en) * 2021-12-28 2023-07-06 Uab Deeper Scanning a body of water with a fishing sonar apparatus

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