DE977991C - - Google Patents
Info
- Publication number
- DE977991C DE977991C DE1960977991 DE977991A DE977991C DE 977991 C DE977991 C DE 977991C DE 1960977991 DE1960977991 DE 1960977991 DE 977991 A DE977991 A DE 977991A DE 977991 C DE977991 C DE 977991C
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- pulse
- impulses
- range
- distance
- 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
- 238000005259 measurement Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000011156 evaluation Methods 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000001771 impaired effect Effects 0.000 claims description 2
- 230000010363 phase shift Effects 0.000 claims description 2
- 235000010678 Paulownia tomentosa Nutrition 0.000 claims 1
- 240000002834 Paulownia tomentosa Species 0.000 claims 1
- 238000002592 echocardiography Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001360 synchronised effect Effects 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
- 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
- G01S13/64—Velocity measuring systems using range gates
-
- 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
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
- G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
- G01S13/53—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi performing filtering on a single spectral line and associated with one or more range gates with a phase detector or a frequency mixer to extract the Doppler information, e.g. pulse Doppler radar
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0067062 | 1960-02-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE977991C true DE977991C (en, 2012) | 1974-12-19 |
Family
ID=7499268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1960977991 Expired DE977991C (en, 2012) | 1960-02-11 | 1960-02-11 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3934253A (en, 2012) |
| BE (1) | BE599925A (en, 2012) |
| DE (1) | DE977991C (en, 2012) |
| FR (1) | FR1605369A (en, 2012) |
| IT (1) | IT984501B (en, 2012) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1934723C1 (de) * | 1969-07-09 | 1978-04-27 | Siemens Ag | Puls-Doppler-Radargeraet mit einer Einrichtung zur Stoerungsunterdrueckung |
| US4023170A (en) * | 1973-12-28 | 1977-05-10 | Texas Instruments Incorporated | Charge transfer device range gate filter |
| GB1529304A (en) * | 1974-10-24 | 1978-10-18 | Brown R | Imaging system |
| GB1528164A (en) * | 1975-05-14 | 1978-10-11 | Marconi Co Ltd | Radar |
| US4816834A (en) * | 1984-03-30 | 1989-03-28 | Honeywell Inc. | Pulse synchronizing apparatus |
| US4975703A (en) * | 1988-02-25 | 1990-12-04 | Lab-Volt (Quebec) Ltee/Ltd. | High resolution short range radar |
| US8098191B1 (en) * | 2007-11-05 | 2012-01-17 | Lockheed Martin Corporation | Electronic curtain for vehicle protection |
| US9482744B1 (en) * | 2014-01-23 | 2016-11-01 | Lockheed Martin Corporation | Staggered pulse repetition frequency doppler processing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3218553A (en) * | 1961-05-29 | 1965-11-16 | Motorola Inc | Time interval measuring system employing vernier digital means and coarse count ambiguity resolver |
-
1960
- 1960-02-11 DE DE1960977991 patent/DE977991C/de not_active Expired
-
1961
- 1961-02-07 BE BE599925A patent/BE599925A/fr unknown
- 1961-02-09 IT IT2320/61A patent/IT984501B/it active
- 1961-02-10 US US04/088,581 patent/US3934253A/en not_active Expired - Lifetime
- 1961-02-10 FR FR852351A patent/FR1605369A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE599925A (fr) | 1961-02-28 |
| FR1605369A (en, 2012) | 1975-02-28 |
| IT984501B (it) | 1974-11-20 |
| US3934253A (en) | 1976-01-20 |
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