KR970048618A - Underwater acoustic detector - Google Patents

Underwater acoustic detector Download PDF

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Publication number
KR970048618A
KR970048618A KR1019950071070A KR19950071070A KR970048618A KR 970048618 A KR970048618 A KR 970048618A KR 1019950071070 A KR1019950071070 A KR 1019950071070A KR 19950071070 A KR19950071070 A KR 19950071070A KR 970048618 A KR970048618 A KR 970048618A
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KR
South Korea
Prior art keywords
signal
frequency
amplifying
outputting
underwater acoustic
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KR1019950071070A
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Korean (ko)
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KR100192737B1 (en
Inventor
김영중
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유기범
대우통신 주식회사
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Priority to KR1019950071070A priority Critical patent/KR100192737B1/en
Publication of KR970048618A publication Critical patent/KR970048618A/en
Application granted granted Critical
Publication of KR100192737B1 publication Critical patent/KR100192737B1/en

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    • 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
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/14—Systems for determining distance or velocity not using reflection or reradiation using ultrasonic, sonic, or infrasonic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/001—Acoustic presence detection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B45/00—Arrangements or adaptations of signalling or lighting devices
    • B63B45/08—Arrangements or adaptations of signalling or lighting devices the devices being acoustic

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  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

본 발명은 수중에서 발생되는 음향신호를 검출함에 있어서 각 주파수대에 따라 다른 전달특성을 갖는 음향신호를 입력받아 평탄한 특성의 음향신호를 생성할 수 있도록 된 수중음향 검출장치에 관한 것으로서, 물의 진동을 그 진동주파수에 대응하는 전기적인 주파수신호로 변환하여 정위상의 제1신호와 역위상의 제2신호를 출력하는 수중음향감지수단과, 상기 수중음향감지수단으로부터 입력되는 주파수신호를 저잡음증폭수단 및, 소정의 대역폭을 갖춤과 더불어 입력신호의 주파수특성을 보상하여 평탄한 레벨의 검출신호를 출력하는 주파수특성보상수단을 포함하여 구성된 것을 특징으로 한다.The present invention relates to a hydroacoustic detection device capable of generating a sound signal having a flat characteristic by receiving an acoustic signal having a different transmission characteristic according to each frequency band in detecting an acoustic signal generated in the water. A low noise amplifying means for converting into an electrical frequency signal corresponding to a vibration frequency and outputting a first signal in a positive phase and a second signal in an inverse phase, and a frequency signal input from the underwater acoustic detection means; And a frequency characteristic compensating means for compensating the frequency characteristics of the input signal and outputting a flat level detection signal with a predetermined bandwidth.

Description

수중음향 검출장치Underwater acoustic detector

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 수중에 존재하는 음향신호의 각 주파수에 따른 신호전달특성을 나타낸 도면.1 is a diagram showing signal transmission characteristics according to respective frequencies of acoustic signals existing in water.

제2도는 본 발명에 따른 수중음향 검출장치를 나타낸 블록구성도.2 is a block diagram showing an underwater sound detection apparatus according to the present invention.

제3도는 제2도에 나타낸 장치의 각 회로부의 주파수특성을 나타낸 주파수특성도.3 is a frequency characteristic diagram showing frequency characteristics of each circuit part of the apparatus shown in FIG.

제4도는 제2도에 나타낸 장치를 구체적으로 구현한 본 발명의 1실시예에 따른 수중음향 검출장치를 나타낸 회로구성도.4 is a circuit diagram showing an underwater sound detection apparatus according to an embodiment of the present invention specifically implementing the apparatus shown in FIG.

Claims (7)

물의 진동을 그 진동주파수에 대응하는 전기적인 주파수신호로 변환하여 정위상의 제1신호와 역위상의 제2신호를 출력하는 수중음향감지수단과, 상기 수중음향감지수단으로부터 입력되는 주파수신호를 저잡음증폭하는 저잡음증폭수단 및, 소정의 대역폭을 갖춤과 더불어 입력신호의 주파수특성을 보상하여 평탄한 레벨의 검출신호를 출력하는 주파수특성 보상수단을 포함하여 구성된 것을 특징으로 하는 수중음향 검출장치.Underwater acoustic detection means for converting the vibration of the water into an electrical frequency signal corresponding to the vibration frequency and outputting the first signal in the positive phase and the second signal in the reverse phase, and a low frequency noise signal input from the underwater acoustic detection means And a low noise amplifying means for amplifying, and a frequency characteristic compensating means having a predetermined bandwidth and compensating for the frequency characteristic of the input signal and outputting a detection signal of a flat level. 제1항에 있어서, 상기 주파수특성보상수단의 출력신호를 차동증폭하여 정위상의 검출신호와 역위상의 검출신호를 출력하는 차동증폭출력수단을 추가로 포함하여 구성된 것을 특징으로 하는 수중음향 검출장치.The underwater acoustic detection device according to claim 1, further comprising differential amplifying output means for differentially amplifying the output signal of said frequency characteristic compensating means and outputting a detection signal of a positive phase and a detection signal of an antiphase. . 제1항 또는 제2항에 있어서, 상기 주파수특성보상수단은 제1주파수보다 큰 주파수신호를 통과시키는 제1필터수단과, 상기 제1주파수보다 큰 제2주파수 보다 낮은 주파수신호를 통과시키는 제2필터수단 및, 상기 제1주파수와 제2주파수 사이의 제3주파수에서 그 신호 이득이 최대값을 갖는 미분수단을 포함하여 구성된 것을 특징으로 하는 수중음향 검출장치.The frequency characteristic compensating means according to claim 1 or 2, wherein the frequency characteristic compensating means comprises: first filter means for passing a frequency signal greater than a first frequency and a second signal for passing a frequency signal lower than a second frequency greater than the first frequency; And a filtering means and a differential means having a maximum signal gain at a third frequency between the first frequency and the second frequency. 제3항에 있어서, 상기 제1주파수는 대략 20KHz인 것을 특징으로 하는 수중음향 검출장치.4. The apparatus of claim 3, wherein the first frequency is approximately 20 KHz. 제3항에 있어서, 상기 제2주파수는 대략 4KHz인 것을 특징으로 하는 수중음향 검출장치.4. The apparatus of claim 3, wherein the second frequency is approximately 4 KHz. 제3항에 있어서, 상기 제3주파수는 대략 4KHz인 것을 특징으로 하는 수중음향 검출장치.4. The apparatus of claim 3, wherein said third frequency is approximately 4 kHz. 제1항에 있어서, 상기 저잡음 증폭수단은 상기 수중음향 감지수단으로부터 출력되는 제1신호와 제2신호의 차이에 대응하는 신호를 증폭하여 출력하는 제1 및 제2차동증폭수단과, 이 제1 및 제2차동증폭수단으로부터 출력되는 출력신호를 차동증폭하는 제3차동증폭수단을 포함하여 구성된 것을 특징으로 하는 수중음향 검출장치.2. The apparatus of claim 1, wherein the low noise amplifying means comprises: first and second differential amplifying means for amplifying and outputting a signal corresponding to a difference between a first signal and a second signal output from the underwater acoustic sensing means; And third differential amplifying means for differentially amplifying the output signal outputted from the second differential amplifying means. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950071070A 1995-12-31 1995-12-31 Underwater sound detection apparatus KR100192737B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950071070A KR100192737B1 (en) 1995-12-31 1995-12-31 Underwater sound detection apparatus

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Application Number Priority Date Filing Date Title
KR1019950071070A KR100192737B1 (en) 1995-12-31 1995-12-31 Underwater sound detection apparatus

Publications (2)

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KR970048618A true KR970048618A (en) 1997-07-29
KR100192737B1 KR100192737B1 (en) 1999-06-15

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020069691A (en) * 2001-02-27 2002-09-05 엘지이노텍 주식회사 Multi channel controller for driving phase control amplifier
KR101467822B1 (en) * 2013-12-18 2014-12-03 한국해양과학기술원 Signal processing method for transforming and reproducing stereo underwater acoustic signals in the air and signal processing appratus using thereof

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