FR2479989A1 - Radar a modulation de frequence pour la localisation d'objets enterres - Google Patents
Radar a modulation de frequence pour la localisation d'objets enterres Download PDFInfo
- Publication number
- FR2479989A1 FR2479989A1 FR8007533A FR8007533A FR2479989A1 FR 2479989 A1 FR2479989 A1 FR 2479989A1 FR 8007533 A FR8007533 A FR 8007533A FR 8007533 A FR8007533 A FR 8007533A FR 2479989 A1 FR2479989 A1 FR 2479989A1
- Authority
- FR
- France
- Prior art keywords
- frequency
- signal
- radar
- ground
- echo signals
- 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.)
- Granted
Links
- 238000004458 analytical method Methods 0.000 title description 6
- 230000035559 beat frequency Effects 0.000 title description 3
- 238000001514 detection method Methods 0.000 title description 2
- 238000001228 spectrum Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 4
- 238000002592 echocardiography Methods 0.000 description 8
- 238000009432 framing Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01S13/06—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
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
-
- 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
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/885—Radar or analogous systems specially adapted for specific applications for ground probing
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar Systems Or Details Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8007533A FR2479989A1 (fr) | 1980-04-03 | 1980-04-03 | Radar a modulation de frequence pour la localisation d'objets enterres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8007533A FR2479989A1 (fr) | 1980-04-03 | 1980-04-03 | Radar a modulation de frequence pour la localisation d'objets enterres |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2479989A1 true FR2479989A1 (fr) | 1981-10-09 |
| FR2479989B1 FR2479989B1 (enExample) | 1984-07-27 |
Family
ID=9240501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8007533A Granted FR2479989A1 (fr) | 1980-04-03 | 1980-04-03 | Radar a modulation de frequence pour la localisation d'objets enterres |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2479989A1 (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0075199A1 (de) * | 1981-09-17 | 1983-03-30 | BROWN, BOVERI & CIE Aktiengesellschaft | Verfahren und Vorrichtung zum Orten von Verschütteten |
| US6473025B2 (en) * | 2001-03-28 | 2002-10-29 | Stolar Horizon | Landmine locating system |
-
1980
- 1980-04-03 FR FR8007533A patent/FR2479989A1/fr active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0075199A1 (de) * | 1981-09-17 | 1983-03-30 | BROWN, BOVERI & CIE Aktiengesellschaft | Verfahren und Vorrichtung zum Orten von Verschütteten |
| US6473025B2 (en) * | 2001-03-28 | 2002-10-29 | Stolar Horizon | Landmine locating system |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2479989B1 (enExample) | 1984-07-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CL | Concession to grant licences | ||
| ST | Notification of lapse |