GB1496611A - Corner reflector for navigation and remote indication - Google Patents
Corner reflector for navigation and remote indicationInfo
- Publication number
- GB1496611A GB1496611A GB135/75A GB13575A GB1496611A GB 1496611 A GB1496611 A GB 1496611A GB 135/75 A GB135/75 A GB 135/75A GB 13575 A GB13575 A GB 13575A GB 1496611 A GB1496611 A GB 1496611A
- Authority
- GB
- United Kingdom
- Prior art keywords
- corner
- radar
- jan
- reflectors
- plates
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/18—Reflecting surfaces; Equivalent structures comprising plurality of mutually inclined plane surfaces, e.g. corner reflector
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
-
- 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
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4052—Means for monitoring or calibrating by simulation of echoes
- G01S7/4082—Means for monitoring or calibrating by simulation of echoes using externally generated reference signals, e.g. via remote reflector or transponder
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Aerials With Secondary Devices (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
1496611 Corner reflectors; sound reflectors AUSTRALIA COMMONWEALTH OF 2 Jan 1975 [3 Jan 1974] 135/75 Headings H4A and H4X A radar or sonar system has a corner reflector which comprises a dihedral 1, 2 and a ground surface 3, all mutually perpendicular, the surface being defined as a boundary between any two of land, sea and air. The reflected beams may be permanently or temporarily swung off the symmetry axis by the formation of effective apertures in either of the plates 1 or 2 (Fig. 11, not shown). The beam may be controlled in elevation by suitably shaping the plates 1, 2 (Figs. 9, 10, not shown). Combinations of the modified corner reflectors may be used as aircraft landing aids (Figs. 12-15, not shown) or marine navigation aids (Fig. 18, not shown). In radar, circular polarization may be used at angles of elevation less than that corresponding to the Brewster angle for the surface 3. Dihedrals may be stacked to give an omnidirectional reflector (Fig. 7, not shown). The ground surface may be modified by levelling and/or by being overlaid by a wire mesh.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU614774 | 1974-01-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1496611A true GB1496611A (en) | 1977-12-30 |
Family
ID=3696652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB135/75A Expired GB1496611A (en) | 1974-01-03 | 1975-01-02 | Corner reflector for navigation and remote indication |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU497632B2 (en) |
| DE (1) | DE2461945A1 (en) |
| FR (1) | FR2257157B1 (en) |
| GB (1) | GB1496611A (en) |
| NL (1) | NL7500052A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940358A (en) * | 2019-12-31 | 2020-03-31 | 徐州治鼎环境科技有限公司 | Laser radar and inertial navigation combined calibration device and calibration method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2733091B1 (en) * | 1983-05-06 | 1997-05-23 | Cmh Sarl | ELECTRICALLY CONTROLLABLE MICROWAVE ANSWER AND ITS APPLICATIONS TO THE PRODUCTION OF ELECTROMAGNETIC LURES |
| DE102010001440B4 (en) * | 2010-02-01 | 2014-01-16 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method and measuring system for measuring the water level of a water body |
| DE102019130708A1 (en) * | 2019-11-14 | 2021-05-20 | Vega Grieshaber Kg | Measuring arrangement and method for determining a fill level of a medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2922158A (en) * | 1956-05-14 | 1960-01-19 | Boeing Co | Radar corner reflector with electrically conductive liquid reflective surface |
-
1974
- 1974-01-03 AU AU76680/74A patent/AU497632B2/en not_active Expired
- 1974-12-31 DE DE19742461945 patent/DE2461945A1/en not_active Ceased
-
1975
- 1975-01-02 GB GB135/75A patent/GB1496611A/en not_active Expired
- 1975-01-03 FR FR7500145A patent/FR2257157B1/fr not_active Expired
- 1975-01-03 NL NL7500052A patent/NL7500052A/en active Search and Examination
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940358A (en) * | 2019-12-31 | 2020-03-31 | 徐州治鼎环境科技有限公司 | Laser radar and inertial navigation combined calibration device and calibration method |
| CN110940358B (en) * | 2019-12-31 | 2023-07-25 | 徐州治鼎环境科技有限公司 | Laser radar and inertial navigation combined calibration device and calibration method |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2257157A1 (en) | 1975-08-01 |
| AU7668074A (en) | 1976-06-24 |
| NL7500052A (en) | 1975-07-07 |
| FR2257157B1 (en) | 1981-06-12 |
| DE2461945A1 (en) | 1975-07-17 |
| AU497632B2 (en) | 1978-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |