GB1305349A - - Google Patents
Info
- Publication number
- GB1305349A GB1305349A GB2805271A GB2805271A GB1305349A GB 1305349 A GB1305349 A GB 1305349A GB 2805271 A GB2805271 A GB 2805271A GB 2805271 A GB2805271 A GB 2805271A GB 1305349 A GB1305349 A GB 1305349A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gratings
- velocity
- signal
- photo
- track
- 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
- 238000012163 sequencing technique Methods 0.000 abstract 2
- 230000001427 coherent effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/50—Systems of measurement based on relative movement of target
-
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/60—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
- G01S13/605—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track using a pattern, backscattered from the ground, to determine speed or drift by measuring the time required to cover a fixed distance
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Transform (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8689770A | 1970-11-04 | 1970-11-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1305349A true GB1305349A (enrdf_load_stackoverflow) | 1973-01-31 |
Family
ID=22201610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2805271A Expired GB1305349A (enrdf_load_stackoverflow) | 1970-11-04 | 1971-06-15 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5322469B1 (enrdf_load_stackoverflow) |
CA (1) | CA952608A (enrdf_load_stackoverflow) |
DE (1) | DE2153888C3 (enrdf_load_stackoverflow) |
FR (1) | FR2112433B1 (enrdf_load_stackoverflow) |
GB (1) | GB1305349A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57188769U (enrdf_load_stackoverflow) * | 1981-05-28 | 1982-11-30 |
-
1971
- 1971-06-15 GB GB2805271A patent/GB1305349A/en not_active Expired
- 1971-06-16 CA CA115,818A patent/CA952608A/en not_active Expired
- 1971-07-06 JP JP4931571A patent/JPS5322469B1/ja active Pending
- 1971-08-23 FR FR7130549A patent/FR2112433B1/fr not_active Expired
- 1971-10-28 DE DE19712153888 patent/DE2153888C3/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2153888C3 (de) | 1980-10-09 |
FR2112433B1 (enrdf_load_stackoverflow) | 1977-01-28 |
DE2153888A1 (de) | 1972-09-07 |
FR2112433A1 (enrdf_load_stackoverflow) | 1972-06-16 |
CA952608A (en) | 1974-08-06 |
DE2153888B2 (de) | 1979-11-15 |
JPS5322469B1 (enrdf_load_stackoverflow) | 1978-07-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |