FR956800A - - Google Patents
Info
- Publication number
- FR956800A FR956800A FR956800DA FR956800A FR 956800 A FR956800 A FR 956800A FR 956800D A FR956800D A FR 956800DA FR 956800 A FR956800 A FR 956800A
- Authority
- FR
- France
- 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
-
- 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
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
- G01S13/24—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using frequency agility of carrier wave
-
- 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
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
- G01S13/12—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB375842A GB586833A (en) | 1942-03-20 | 1942-03-20 | Improvements in or relating to arrangements for locating objects by radio waves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR956800A true FR956800A (fi) | 1950-02-07 |
Family
ID=9764396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR956800D Expired FR956800A (fi) | 1942-03-20 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE475377A (fi) |
| CH (1) | CH271410A (fi) |
| FR (1) | FR956800A (fi) |
| GB (1) | GB586833A (fi) |
-
0
- BE BE475377D patent/BE475377A/xx unknown
- FR FR956800D patent/FR956800A/fr not_active Expired
-
1942
- 1942-03-20 GB GB375842A patent/GB586833A/en not_active Expired
-
1947
- 1947-03-25 CH CH271410D patent/CH271410A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB586833A (en) | 1947-04-02 |
| BE475377A (fi) | |
| CH271410A (fr) | 1950-10-31 |