GB838493A - Improvements in or relating to pulse radar receivers - Google Patents
Improvements in or relating to pulse radar receiversInfo
- Publication number
- GB838493A GB838493A GB1973755A GB1973755A GB838493A GB 838493 A GB838493 A GB 838493A GB 1973755 A GB1973755 A GB 1973755A GB 1973755 A GB1973755 A GB 1973755A GB 838493 A GB838493 A GB 838493A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carrier
- increases
- amplifier
- frequencies
- separation
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/292—Extracting wanted echo-signals
- G01S7/2921—Extracting wanted echo-signals based on data belonging to one radar period
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
838,493. Electric analogue calculating- apparatus. DECCA RECORD CO. Ltd. Oct. 8, 1956 [July 7, 1955], No. 19737/55. Class 37. [Also in Group XL (c)] The envelope of a pulse-modulated carrier is effectively differentiated by arranging that the frequency response of a carrier amplifier increases as the separation from the carrier frequency increases on at least one side of the carrier. In the pulse radar receiver shown, the I.F. amplifier includes two parallel amplifiers 14, 16 tuned respectively to frequencies on opposite sides of the carrier and such that the response increases by 6 Db. per octave as the separation from the carrier increases and such that the time delay for all frequencies is equal. A further amplifier 15 selects the carrier and supplies it to a demodulator 18 in sufficient amplitude to ensure undistorted demodulation. A single double-tuned amplifier could replace the amplifiers 14 and 16.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1973755A GB838493A (en) | 1955-07-07 | 1955-07-07 | Improvements in or relating to pulse radar receivers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1973755A GB838493A (en) | 1955-07-07 | 1955-07-07 | Improvements in or relating to pulse radar receivers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB838493A true GB838493A (en) | 1960-06-22 |
Family
ID=10134360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1973755A Expired GB838493A (en) | 1955-07-07 | 1955-07-07 | Improvements in or relating to pulse radar receivers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB838493A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1211698B (en) * | 1961-05-24 | 1966-03-03 | Marconi Co Ltd | Impulse radar receiver |
DE1591334C1 (en) * | 1966-10-26 | 1975-11-06 | North American Aviation Inc | Direction-sensitive, distance measuring, non-coherent impulse echo location receiver with fixed-character suppression that can be switched off |
-
1955
- 1955-07-07 GB GB1973755A patent/GB838493A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1211698B (en) * | 1961-05-24 | 1966-03-03 | Marconi Co Ltd | Impulse radar receiver |
DE1591334C1 (en) * | 1966-10-26 | 1975-11-06 | North American Aviation Inc | Direction-sensitive, distance measuring, non-coherent impulse echo location receiver with fixed-character suppression that can be switched off |
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