BE476938A - - Google Patents
Info
- Publication number
- BE476938A BE476938A BE476938DA BE476938A BE 476938 A BE476938 A BE 476938A BE 476938D A BE476938D A BE 476938DA BE 476938 A BE476938 A BE 476938A
- Authority
- BE
- Belgium
- Prior art keywords
- frequency
- modulation
- carrier wave
- phase
- antenna
- Prior art date
Links
- 230000005855 radiation Effects 0.000 claims description 30
- 238000010586 diagram Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 8
- 230000010363 phase shift Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000035559 beat frequency Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000007787 solid Substances 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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1539644A GB600195A (en) | 1944-08-11 | Improvements in radio navigational systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE476938A true BE476938A (enrdf_load_stackoverflow) |
Family
ID=10058412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE476938D BE476938A (enrdf_load_stackoverflow) | 1944-08-11 |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE476938A (enrdf_load_stackoverflow) |
-
0
- BE BE476938D patent/BE476938A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3315994B1 (fr) | Radar fmcw multifaisceaux, notamment pour automobile | |
| EP0415818B1 (fr) | Commande de pointage pour système d'antenne à balayage électronique et formation de faisceau par le calcul | |
| TWI331225B (en) | Radar, method of radar processing, and method of processing radar signals in a radar | |
| US6204810B1 (en) | Communications system | |
| US2253958A (en) | Rotating radio beacon | |
| EP2834664B1 (fr) | Radar à faible probabilité d'interception | |
| EP0107552B1 (fr) | Sonar interférométrique en acoustique non-linéaire | |
| EP2831615B1 (fr) | Dispositif de détection électromagnétique actif et passif à faible probabilité d'interception | |
| EP3004920B1 (fr) | Procédé de localisation d'une cible et système radar multistatique pour la mise en oeuvre d'un tel procédé | |
| CA1247216A (fr) | Radioaltimetre a modulation de frequence | |
| EP0279997B1 (fr) | Dispositif et procédé de transmission de données utilisant deux polarisations croisées d'une onde électromagnétique | |
| US4937582A (en) | Polarization adaptive active aperture system | |
| CA1266910A (fr) | Sonar interferometrique a large bande et emission comprimee | |
| CN104601245B (zh) | 一种能产生并传输射频轨道角动量的光学链路 | |
| BE476938A (enrdf_load_stackoverflow) | ||
| US2613348A (en) | Frequency modulation system | |
| FR2487985A1 (fr) | Dispositif et procede d'attaque d'antennes pour un systeme de navigation omnidirectionnelle a tres haute frequence | |
| FR2499252A1 (fr) | Procede pour reperer la position d'un corps immerge au moyen d'ondes acoustiques et dispositifs du type sonar actif comportant des voies d'emission et d'ecoute | |
| US2498732A (en) | Radio navigation system | |
| EP3521851A1 (fr) | Dispositif et procédé d'émission/réception de signaux radioélectriques | |
| BE469834A (enrdf_load_stackoverflow) | ||
| BE473003A (enrdf_load_stackoverflow) | ||
| BE475934A (enrdf_load_stackoverflow) | ||
| EP0624804A1 (fr) | Système de poursuite destiné à estimer l'erreur de pointage d'une antenne hyperfréquence | |
| EP1233282A1 (fr) | Système à émission et réception réparties, notamment radar à émission synthétique et à formation de faisceau par le calcul |