GB1367600A - Radar systems - Google Patents
Radar systemsInfo
- Publication number
- GB1367600A GB1367600A GB3613273A GB3613273A GB1367600A GB 1367600 A GB1367600 A GB 1367600A GB 3613273 A GB3613273 A GB 3613273A GB 3613273 A GB3613273 A GB 3613273A GB 1367600 A GB1367600 A GB 1367600A
- Authority
- GB
- United Kingdom
- Prior art keywords
- range
- circuit
- channel
- window
- bank
- 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
-
- 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
- G01S13/66—Radar-tracking systems; Analogous systems
-
- 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
- G01S13/66—Radar-tracking systems; Analogous systems
- G01S13/70—Radar-tracking systems; Analogous systems for range tracking only
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)
Abstract
1367600 Radar SIEMENS AG 30 July 1973 [15 Sept 1972] 36132/73 Heading H4D A radar system is provided with means for initially operating in a target acquisition mode and for automatically switching to a target tracking mode. The system comprises a receiver, echo-processing circuits provided with a plurality of range gates, a displaceable range window for use in the tracking mode, and a store to mark the range gate involved after acquisition of a target. The marking serves to displace the range window in time by means of a followup circuit, which remains operative until an echo signal from the target appears in said window, when a stop signal is applied to said circuit. As described, a transmitter and receiver are combined in a unit RG connected to an aerial AT which during the acquisition mode is circularly scanned, and which during the tracking mode is conically scanned. The received echo signals are supplied from the unit RG to a first bank of range gates ET1, which has separate range channels K1 to Kn. A second bank of range gates ET2, to which the echo signals are also applied, splits part of the range span of the range gate bank ET1 into a number of smaller range channels, K1a to K1f. As shown, the time position of an echo pulse E1 is within the range channel K1 of the range gate bank ET1. From information obtained from channel K1, the range gate bank ET2 is so placed that it definitely covers said channel. The outputs from the range channels K1a to K1f are connected to a store SP for marking purposes, this store retaining information as to which range channel in the bank ET2 has picked up an echo signal during the acquisition mode (in this case, channel K1d). A target tracking circuit GEF has a displaceable range window EF, and is also supplied with the received echo signals. A follow up circuit NS displaces the timing of the range window EF towards the marked channel K1d until they coincide, when output EA from said range window switches off said follow up circuit. Tracking then continues conventionally, information passing from the range window EF and the circuit GEF to an analyser or indicator circuit AS. The store SP may be arranged to retain only a signal corresponding to a target of shortest range, should there be more than one, as a counter to simulation of pulses by enemy jammers.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722245348 DE2245348C3 (en) | 1972-09-15 | Radar device with instruction and distance tracking operation |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1367600A true GB1367600A (en) | 1974-09-18 |
Family
ID=5856461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3613273A Expired GB1367600A (en) | 1972-09-15 | 1973-07-30 | Radar systems |
Country Status (4)
Country | Link |
---|---|
FR (1) | FR2200530B1 (en) |
GB (1) | GB1367600A (en) |
IT (1) | IT993189B (en) |
NL (1) | NL162746C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2293937A (en) * | 1994-10-03 | 1996-04-10 | Seikosha Kk | Distance measurement device |
GB2329293A (en) * | 1994-10-03 | 1999-03-17 | Seiko Precision Kk | Distance measurement device |
-
1973
- 1973-07-27 NL NL7310467A patent/NL162746C/en not_active IP Right Cessation
- 1973-07-30 GB GB3613273A patent/GB1367600A/en not_active Expired
- 1973-09-11 FR FR7332599A patent/FR2200530B1/fr not_active Expired
- 1973-09-11 IT IT2876773A patent/IT993189B/en active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2293937A (en) * | 1994-10-03 | 1996-04-10 | Seikosha Kk | Distance measurement device |
US5781282A (en) * | 1994-10-03 | 1998-07-14 | Seiko Precision Inc. | Distance measurement device |
GB2329293A (en) * | 1994-10-03 | 1999-03-17 | Seiko Precision Kk | Distance measurement device |
GB2293937B (en) * | 1994-10-03 | 1999-04-21 | Seikosha Kk | Distance measuring apparatus |
GB2329293B (en) * | 1994-10-03 | 1999-04-28 | Seiko Precision Kk | Distance measuring apparatus |
Also Published As
Publication number | Publication date |
---|---|
FR2200530B1 (en) | 1980-11-07 |
FR2200530A1 (en) | 1974-04-19 |
DE2245348A1 (en) | 1974-03-28 |
IT993189B (en) | 1975-09-30 |
DE2245348B2 (en) | 1975-05-28 |
NL162746C (en) | 1980-06-16 |
NL7310467A (en) | 1974-03-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |