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.)
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.)
Shimada Rika Kogyo KK
Original Assignee
Shimada Rika Kogyo KK
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 Shimada Rika Kogyo KKfiledCriticalShimada Rika Kogyo KK
Priority to JP1814382ApriorityCriticalpatent/JPS58135979A/ja
Publication of JPS58135979ApublicationCriticalpatent/JPS58135979A/ja
Publication of JPS644637B2publicationCriticalpatent/JPS644637B2/ja
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
G01S15/66—Sonar tracking systems
Landscapes
Engineering & Computer Science
(AREA)
Radar, Positioning & Navigation
(AREA)
Remote Sensing
(AREA)
Computer Networks & Wireless Communication
(AREA)
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves
(AREA)