NL236447A - - Google Patents
Info
- Publication number
- NL236447A NL236447A NL236447DA NL236447A NL 236447 A NL236447 A NL 236447A NL 236447D A NL236447D A NL 236447DA NL 236447 A NL236447 A NL 236447A
- Authority
- NL
- Netherlands
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
- G01S13/12—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
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- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
- G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
- G01S15/12—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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1225522X | 1959-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL236447A true NL236447A (en) |
Family
ID=19872237
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL108622D NL108622C (en) | 1959-02-23 | ||
| NL236447D NL236447A (en) | 1959-02-23 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL108622D NL108622C (en) | 1959-02-23 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1225522B (en) |
| NL (2) | NL236447A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012017131A1 (en) * | 2012-08-30 | 2014-03-06 | Christian-Albrechts-Universität Zu Kiel | Method for quasi-continuous transmission of hydroacoustic signals |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE735005C (en) * | 1935-04-16 | 1943-05-04 | Betr Sgesellschaft Fuer Drahtl | Procedure for distance measurement in any media by rhythmically sending pulses |
| DE671644C (en) * | 1935-08-16 | 1939-02-11 | Atlas Werke Ag | Method and device for determining the distance using the echo method |
| DE905343C (en) * | 1943-04-06 | 1954-03-01 | Atlas Werke Ag | Device for echo sounding with variable plumbing, in particular for determining the direction of reflecting objects |
| DE919869C (en) * | 1951-11-16 | 1954-11-04 | Electroacustic Ges M B H | Echo sounder device with device for setting a partial sounding range |
-
0
- NL NL108622D patent/NL108622C/xx active
- NL NL236447D patent/NL236447A/xx unknown
-
1960
- 1960-02-09 DE DEM44259A patent/DE1225522B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1225522B (en) | 1966-09-22 |
| NL108622C (en) |