GB2203915B - Automatic, real-time fault monitor verifying network in a microwave landing system - Google Patents
Automatic, real-time fault monitor verifying network in a microwave landing systemInfo
- Publication number
- GB2203915B GB2203915B GB8809191A GB8809191A GB2203915B GB 2203915 B GB2203915 B GB 2203915B GB 8809191 A GB8809191 A GB 8809191A GB 8809191 A GB8809191 A GB 8809191A GB 2203915 B GB2203915 B GB 2203915B
- Authority
- GB
- United Kingdom
- Prior art keywords
- real
- automatic
- landing system
- time fault
- fault monitor
- 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 - Fee Related
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
- 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
- G01S1/08—Systems for determining direction or position line
- G01S1/44—Rotating or oscillating beam beacons defining directions in the plane of rotation or oscillation
- G01S1/54—Narrow-beam systems producing at a receiver a pulse-type envelope signal of the carrier wave of the beam, the timing of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon; Overlapping broad beam systems defining a narrow zone and producing at a receiver a pulse-type envelope signal of the carrier wave of the beam, the timing of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon
- G01S1/56—Timing the pulse-type envelope signals derived by reception of the beam
-
- 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
- G01S1/022—Means for monitoring or calibrating
- G01S1/024—Means for monitoring or calibrating of beacon transmitters
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Traffic Control Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/040,505 US4823127A (en) | 1987-04-20 | 1987-04-20 | Automatic, real-time fault monitor verifying network in a microwave landing system |
CA000564773A CA1325261C (en) | 1987-04-20 | 1988-04-21 | Automatic, real-time fault monitor verifying network in a microwave landing system |
EP88304871A EP0343295B1 (en) | 1988-04-21 | 1988-05-27 | Automatic, real-time fault monitor verifying network in a microwave landing system |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8809191D0 GB8809191D0 (en) | 1988-05-25 |
GB2203915A GB2203915A (en) | 1988-10-26 |
GB2203915B true GB2203915B (en) | 1991-05-22 |
Family
ID=27167933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8809191A Expired - Fee Related GB2203915B (en) | 1987-04-20 | 1988-04-19 | Automatic, real-time fault monitor verifying network in a microwave landing system |
Country Status (2)
Country | Link |
---|---|
CA (1) | CA1325261C (en) |
GB (1) | GB2203915B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3885092T2 (en) * | 1988-04-21 | 1994-05-19 | Hazeltine Corp | Automatic real-time verification circuit for a fault monitor in a microwave landing system. |
GB2282292B (en) * | 1993-09-28 | 1997-12-17 | Siemens Plessey Electronic | Improvements in or relating to aircraft landing systems |
-
1988
- 1988-04-19 GB GB8809191A patent/GB2203915B/en not_active Expired - Fee Related
- 1988-04-21 CA CA000564773A patent/CA1325261C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB8809191D0 (en) | 1988-05-25 |
CA1325261C (en) | 1993-12-14 |
GB2203915A (en) | 1988-10-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0278316A3 (en) | Network management system | |
GB8926765D0 (en) | Method for loading an operating system through a network | |
DE3463863D1 (en) | Method for claiming a printer for a workstation, in an office equipment network | |
IL96256A0 (en) | Automatic fault recovery in a packet network | |
IL96257A0 (en) | Automatic fault recovery in a packet network | |
DE3563163D1 (en) | System for making a cigarette, method and device using the system | |
DE3380750D1 (en) | Automatic fault reporting system | |
EP0416943A3 (en) | Method for controlling failover between redundant network interface modules | |
IL96255A0 (en) | Automatic fault recovery in a packet network | |
EP0484261A3 (en) | Method and system for correlating condition reporting messages in a communication network | |
GB9019994D0 (en) | Automated documentation system for a communications network | |
EP0278520A3 (en) | Automatic dilution system | |
GB2237709B (en) | Hybrid network | |
EP0426355A3 (en) | Route based network management | |
EP0429952A3 (en) | Automatic landing system | |
GB2187367B (en) | Control system for local area network | |
EP0243590A3 (en) | Method for establishing a limited broadcast path within an interconnection network | |
EP0291135A3 (en) | Concentrator stage, especially for a b-isdn switching network | |
EP0304285A3 (en) | Network control system | |
EP0421174A3 (en) | Connecting device for a local area network | |
GB2203915B (en) | Automatic, real-time fault monitor verifying network in a microwave landing system | |
AU7949387A (en) | Decentralized line reservation interface within a local area network | |
KR970001874B1 (en) | Local area network system | |
EP0422389A3 (en) | Connection system, in particular for computer networks | |
GB2235342B (en) | Apparatus for detecting a fault in a transmission line |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950419 |