IL132255A - Pseudorandom-bit sequence modulated fiber-optic gyro - Google Patents
Pseudorandom-bit sequence modulated fiber-optic gyroInfo
- Publication number
- IL132255A IL132255A IL13225599A IL13225599A IL132255A IL 132255 A IL132255 A IL 132255A IL 13225599 A IL13225599 A IL 13225599A IL 13225599 A IL13225599 A IL 13225599A IL 132255 A IL132255 A IL 132255A
- Authority
- IL
- Israel
- Prior art keywords
- sequence
- bit
- bits
- trailing
- modifier
- Prior art date
Links
- 239000003607 modifier Substances 0.000 claims abstract description 79
- 238000000034 method Methods 0.000 claims abstract description 38
- 239000013307 optical fiber Substances 0.000 claims description 8
- 230000000644 propagated effect Effects 0.000 claims 1
- 230000001902 propagating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000009795 derivation Methods 0.000 description 2
- 238000005295 random walk Methods 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
- G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/255,391 US6115125A (en) | 1999-02-22 | 1999-02-22 | Pseudorandom-bit-sequence modulated fiber-optic gyro |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL132255A0 IL132255A0 (en) | 2001-03-19 |
| IL132255A true IL132255A (en) | 2004-06-20 |
Family
ID=22968116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL13225599A IL132255A (en) | 1999-02-22 | 1999-10-06 | Pseudorandom-bit sequence modulated fiber-optic gyro |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US6115125A (de) |
| EP (1) | EP1031817B1 (de) |
| JP (1) | JP4297576B2 (de) |
| IL (1) | IL132255A (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6636553B1 (en) * | 1998-12-29 | 2003-10-21 | Texas Instruments Incorporated | Pseudorandom noise generator for WCDMA |
| US6115125A (en) * | 1999-02-22 | 2000-09-05 | Litton Systems Inc. | Pseudorandom-bit-sequence modulated fiber-optic gyro |
| US7818443B2 (en) * | 2000-12-01 | 2010-10-19 | O2Micro International Ltd. | Low power digital audio decoding/playing system for computing devices |
| US7890741B2 (en) | 2000-12-01 | 2011-02-15 | O2Micro International Limited | Low power digital audio decoding/playing system for computing devices |
| US7522964B2 (en) * | 2000-12-01 | 2009-04-21 | O2Micro International Limited | Low power digital audio decoding/playing system for computing devices |
| US7522965B2 (en) * | 2000-12-01 | 2009-04-21 | O2Micro International Limited | Low power digital audio decoding/playing system for computing devices |
| US6737846B1 (en) * | 2002-12-17 | 2004-05-18 | Green Power Technologies Ltd. | Method and voltage feedback circuitry for improving the performance of APFC converters |
| US7194496B2 (en) * | 2003-05-02 | 2007-03-20 | Spirent Communications Of Rockville, Inc. | System and method for producing functions for generating pseudo-random bit sequences |
| CN101482413B (zh) * | 2009-02-24 | 2010-12-01 | 北京航天时代光电科技有限公司 | 一种改善光纤陀螺低角速率下标度因数非线性的方法 |
| CN111064067B (zh) | 2019-12-19 | 2021-05-25 | 中国兵器装备研究院 | 光纤激光相干合成系统 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE380696B (sv) * | 1974-03-20 | 1975-11-10 | Philips Svenska Ab | Sett att alstra en pseudoslumpbitfoljd och anordning for utforande av settet. |
| US4291386A (en) * | 1978-11-30 | 1981-09-22 | Sperry Corporation | Pseudorandom number generator |
| DE3580049D1 (de) * | 1984-02-06 | 1990-11-08 | British Broadcasting Corp | Binaere pseudo-zufalls-reihengeneratoren. |
| EP0441998B1 (de) * | 1990-02-12 | 1993-06-02 | LITEF GmbH | Faseroptisches Sagnac-Interferometer mit digitaler Phasenrampenrückstellung zur Drehratenmessung |
| EP0620518B1 (de) * | 1993-04-06 | 1999-10-06 | Hewlett-Packard Company | Verfahren und Apparat zum Erzeugen von linearen Rückführungsschieberegistersequenzen |
| US5682241A (en) * | 1996-03-11 | 1997-10-28 | Litton Systems, Inc. | Method and apparatus for overcoming cross-coupling in a fiber optic gyroscope employing overmodulation |
| US6115125A (en) * | 1999-02-22 | 2000-09-05 | Litton Systems Inc. | Pseudorandom-bit-sequence modulated fiber-optic gyro |
-
1999
- 1999-02-22 US US09/255,391 patent/US6115125A/en not_active Expired - Lifetime
- 1999-10-06 IL IL13225599A patent/IL132255A/en not_active IP Right Cessation
- 1999-12-09 JP JP35038199A patent/JP4297576B2/ja not_active Expired - Fee Related
-
2000
- 2000-02-22 EP EP00103347.1A patent/EP1031817B1/de not_active Expired - Lifetime
- 2000-06-30 US US09/607,471 patent/US6307631B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1031817A2 (de) | 2000-08-30 |
| EP1031817A3 (de) | 2003-08-06 |
| JP4297576B2 (ja) | 2009-07-15 |
| EP1031817B1 (de) | 2016-06-29 |
| JP2000241169A (ja) | 2000-09-08 |
| IL132255A0 (en) | 2001-03-19 |
| US6115125A (en) | 2000-09-05 |
| US6307631B1 (en) | 2001-10-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Patent granted | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| EXP | Patent expired |