JPH0456953B2 - - Google Patents
Info
- Publication number
- JPH0456953B2 JPH0456953B2 JP15782584A JP15782584A JPH0456953B2 JP H0456953 B2 JPH0456953 B2 JP H0456953B2 JP 15782584 A JP15782584 A JP 15782584A JP 15782584 A JP15782584 A JP 15782584A JP H0456953 B2 JPH0456953 B2 JP H0456953B2
- Authority
- JP
- Japan
- Prior art keywords
- acousto
- radio wave
- element antenna
- frequency
- antenna 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910013641 LiNbO 3 Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15782584A JPS6135379A (ja) | 1984-07-27 | 1984-07-27 | 電波探知器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15782584A JPS6135379A (ja) | 1984-07-27 | 1984-07-27 | 電波探知器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6135379A JPS6135379A (ja) | 1986-02-19 |
JPH0456953B2 true JPH0456953B2 (enrdf_load_stackoverflow) | 1992-09-10 |
Family
ID=15658136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15782584A Granted JPS6135379A (ja) | 1984-07-27 | 1984-07-27 | 電波探知器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6135379A (enrdf_load_stackoverflow) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56113048A (en) * | 1980-02-07 | 1981-09-05 | Nippon Denso Co Ltd | Ignition timing control method |
US7194236B2 (en) * | 2001-09-28 | 2007-03-20 | Trex Enterprises Corp. | Millimeter wave imaging system |
-
1984
- 1984-07-27 JP JP15782584A patent/JPS6135379A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6135379A (ja) | 1986-02-19 |
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