AU500769B2 - Process of & apparatus for providing filter discrimination between received direct impulses and delayed pulse navigation - Google Patents
Process of & apparatus for providing filter discrimination between received direct impulses and delayed pulse navigationInfo
- Publication number
- AU500769B2 AU500769B2 AU80938/75A AU8093875A AU500769B2 AU 500769 B2 AU500769 B2 AU 500769B2 AU 80938/75 A AU80938/75 A AU 80938/75A AU 8093875 A AU8093875 A AU 8093875A AU 500769 B2 AU500769 B2 AU 500769B2
- Authority
- AU
- Australia
- Prior art keywords
- delayed pulse
- received direct
- providing filter
- direct impulses
- filter discrimination
- 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
- 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
- G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
- G01S1/24—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
- G01S1/245—Details of receivers cooperating therewith, e.g. determining positive zero crossing of third cycle in LORAN-C
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Noise Elimination (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752518611 DE2518611C2 (en) | 1975-04-24 | 1975-04-24 | Filter for Loran-C signal pulses |
AU80938/75A AU500769B2 (en) | 1975-04-24 | 1975-05-08 | Process of & apparatus for providing filter discrimination between received direct impulses and delayed pulse navigation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752518611 DE2518611C2 (en) | 1975-04-24 | 1975-04-24 | Filter for Loran-C signal pulses |
AU80938/75A AU500769B2 (en) | 1975-04-24 | 1975-05-08 | Process of & apparatus for providing filter discrimination between received direct impulses and delayed pulse navigation |
Publications (2)
Publication Number | Publication Date |
---|---|
AU8093875A AU8093875A (en) | 1976-11-11 |
AU500769B2 true AU500769B2 (en) | 1979-05-31 |
Family
ID=25639626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU80938/75A Expired AU500769B2 (en) | 1975-04-24 | 1975-05-08 | Process of & apparatus for providing filter discrimination between received direct impulses and delayed pulse navigation |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU500769B2 (en) |
DE (1) | DE2518611C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3547412B2 (en) * | 2001-07-24 | 2004-07-28 | 株式会社日立製作所 | Wireless terminal device and positioning system |
-
1975
- 1975-04-24 DE DE19752518611 patent/DE2518611C2/en not_active Expired
- 1975-05-08 AU AU80938/75A patent/AU500769B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU8093875A (en) | 1976-11-11 |
DE2518611C2 (en) | 1982-09-09 |
DE2518611A1 (en) | 1976-10-28 |
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