CA1114480A - Methode et appareil d'etalonnage automatique de radio-altimetres - Google Patents
Methode et appareil d'etalonnage automatique de radio-altimetresInfo
- Publication number
- CA1114480A CA1114480A CA304,243A CA304243A CA1114480A CA 1114480 A CA1114480 A CA 1114480A CA 304243 A CA304243 A CA 304243A CA 1114480 A CA1114480 A CA 1114480A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- transmitted
- frequency
- altitude
- difference
- 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
- G01S13/02—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
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
- G01S13/345—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using triangular modulation
-
- 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
- G01S7/40—Means for monitoring or calibrating
- G01S7/4052—Means for monitoring or calibrating by simulation of echoes
- G01S7/4056—Means for monitoring or calibrating by simulation of echoes specially adapted to FMCW
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80068477A | 1977-05-26 | 1977-05-26 | |
US800,684 | 1977-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1114480A true CA1114480A (fr) | 1981-12-15 |
Family
ID=25179086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA304,243A Expired CA1114480A (fr) | 1977-05-26 | 1978-05-25 | Methode et appareil d'etalonnage automatique de radio-altimetres |
Country Status (3)
Country | Link |
---|---|
CA (1) | CA1114480A (fr) |
FR (1) | FR2392396A1 (fr) |
GB (1) | GB1589047A (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0030053A1 (fr) * | 1979-11-30 | 1981-06-10 | The Boeing Company | Simulateur de radio-altimètre à faible portée utilisable pour les avions |
FR2569857B1 (fr) * | 1982-10-13 | 1988-05-13 | Trt Telecom Radio Electr | Simulateur de retard variable electriquement pour appareil de mesure de distance a onde continue modulee en frequence |
FR2573217B1 (fr) * | 1984-11-13 | 1987-01-23 | Trt Telecom Radio Electr | Simulateur de retards pour appareil de mesure de distance a onde continue modulee en frequence |
DE3830992A1 (de) * | 1988-09-12 | 1990-03-22 | Messerschmitt Boelkow Blohm | Radarhoehenmesser |
JP2003232851A (ja) * | 2002-02-08 | 2003-08-22 | Murata Mfg Co Ltd | レーダおよびその特性調整方法 |
GB0506209D0 (en) * | 2005-03-29 | 2005-05-04 | Qinetiq Ltd | Coherent frequency modulated continuous wave radar |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3340529A (en) * | 1963-06-11 | 1967-09-05 | Sanders Associates Inc | Fm altimeter with reduced step error |
US3341849A (en) * | 1966-01-26 | 1967-09-12 | Bendix Corp | Self-calibrating, self-testing radio altimeter |
US3403398A (en) * | 1967-06-01 | 1968-09-24 | Collins Radio Co | Double bounce second signal return filter corrected fmcw radio altimeter |
GB1207565A (en) * | 1968-07-11 | 1970-10-07 | Standard Telephones Cables Ltd | Radio altimeters |
US4044355A (en) * | 1973-11-20 | 1977-08-23 | Saab-Scania Aktiebolag | Measurement of contents of tanks etc. with microwave radiations |
-
1978
- 1978-05-24 GB GB2179678A patent/GB1589047A/en not_active Expired
- 1978-05-25 CA CA304,243A patent/CA1114480A/fr not_active Expired
- 1978-05-26 FR FR7815741A patent/FR2392396A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2392396A1 (fr) | 1978-12-22 |
FR2392396B1 (fr) | 1984-04-20 |
GB1589047A (en) | 1981-05-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |