JPS5274368A - Reverberation removal filter - Google Patents

Reverberation removal filter

Info

Publication number
JPS5274368A
JPS5274368A JP15112975A JP15112975A JPS5274368A JP S5274368 A JPS5274368 A JP S5274368A JP 15112975 A JP15112975 A JP 15112975A JP 15112975 A JP15112975 A JP 15112975A JP S5274368 A JPS5274368 A JP S5274368A
Authority
JP
Japan
Prior art keywords
removal filter
reverberation removal
narrow
filter
reverberation
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.)
Granted
Application number
JP15112975A
Other languages
Japanese (ja)
Other versions
JPS6031270B2 (en
Inventor
Hisayoshi Ishimatsu
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
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15112975A priority Critical patent/JPS6031270B2/en
Publication of JPS5274368A publication Critical patent/JPS5274368A/en
Publication of JPS6031270B2 publication Critical patent/JPS6031270B2/en
Expired 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Filters And Equalizers (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To let a narrow-band removal filter and narrow-band pass filter automatically operate as a removal filter in a reveration region and as a pass filter in a noise region by using said filters.
JP15112975A 1975-12-17 1975-12-17 active sonar device Expired JPS6031270B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15112975A JPS6031270B2 (en) 1975-12-17 1975-12-17 active sonar device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15112975A JPS6031270B2 (en) 1975-12-17 1975-12-17 active sonar device

Publications (2)

Publication Number Publication Date
JPS5274368A true JPS5274368A (en) 1977-06-22
JPS6031270B2 JPS6031270B2 (en) 1985-07-20

Family

ID=15511987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15112975A Expired JPS6031270B2 (en) 1975-12-17 1975-12-17 active sonar device

Country Status (1)

Country Link
JP (1) JPS6031270B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56109951U (en) * 1980-01-24 1981-08-25
JPS60174972A (en) * 1983-11-04 1985-09-09 エンドレス・ウント・ハウザ−・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング・ウント・コンパニ− Sound wave or ultrasonic range finder

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188824A (en) * 1984-10-08 1986-05-07 開成工業株式会社 Pruning method and machine
JPS6196927A (en) * 1984-10-19 1986-05-15 開成工業株式会社 Pruning method and machine
JPH0335085Y2 (en) * 1984-12-06 1991-07-25

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56109951U (en) * 1980-01-24 1981-08-25
JPS5833082Y2 (en) * 1980-01-24 1983-07-23 株式会社 酒井製作所 food storage containers
JPS60174972A (en) * 1983-11-04 1985-09-09 エンドレス・ウント・ハウザ−・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング・ウント・コンパニ− Sound wave or ultrasonic range finder

Also Published As

Publication number Publication date
JPS6031270B2 (en) 1985-07-20

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