GB2458395B - Identification of the channel frequency response using stepped frequencies - Google Patents
Identification of the channel frequency response using stepped frequenciesInfo
- Publication number
- GB2458395B GB2458395B GB0910285A GB0910285A GB2458395B GB 2458395 B GB2458395 B GB 2458395B GB 0910285 A GB0910285 A GB 0910285A GB 0910285 A GB0910285 A GB 0910285A GB 2458395 B GB2458395 B GB 2458395B
- Authority
- GB
- United Kingdom
- Prior art keywords
- identification
- frequency response
- channel frequency
- stepped frequencies
- stepped
- 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.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H15/00—Measuring mechanical or acoustic impedance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/003—Seismic data acquisition in general, e.g. survey design
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
- G01V11/002—Details, e.g. power supply systems for logging instruments, transmitting or recording data, specially adapted for well logging, also if the prospecting method is irrelevant
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Radar Systems Or Details Thereof (AREA)
- Geophysics And Detection Of Objects (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Radio Relay Systems (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0910285A GB2458395B (en) | 2004-11-22 | 2005-11-19 | Identification of the channel frequency response using stepped frequencies |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62999004P | 2004-11-22 | 2004-11-22 | |
GB0710317A GB2435660B (en) | 2004-11-22 | 2005-11-19 | Identification of the channel frequency response using chirps |
GB0910285A GB2458395B (en) | 2004-11-22 | 2005-11-19 | Identification of the channel frequency response using stepped frequencies |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0910285D0 GB0910285D0 (en) | 2009-07-29 |
GB2458395A GB2458395A (en) | 2009-09-23 |
GB2458395B true GB2458395B (en) | 2009-11-04 |
Family
ID=38198608
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0910286A Active GB2458396B (en) | 2004-11-22 | 2005-11-19 | Identification of the channel frequency response using a pseudo-random sequence or pseudo-random binary sequence |
GB0910285A Active GB2458395B (en) | 2004-11-22 | 2005-11-19 | Identification of the channel frequency response using stepped frequencies |
GB0710317A Active GB2435660B (en) | 2004-11-22 | 2005-11-19 | Identification of the channel frequency response using chirps |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0910286A Active GB2458396B (en) | 2004-11-22 | 2005-11-19 | Identification of the channel frequency response using a pseudo-random sequence or pseudo-random binary sequence |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0710317A Active GB2435660B (en) | 2004-11-22 | 2005-11-19 | Identification of the channel frequency response using chirps |
Country Status (3)
Country | Link |
---|---|
CA (1) | CA2588059C (en) |
GB (3) | GB2458396B (en) |
NO (1) | NO338841B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9765615B2 (en) | 2013-08-28 | 2017-09-19 | Evolution Engineering Inc. | Optimizing electromagnetic telemetry transmissions |
RU2786461C1 (en) * | 2020-05-28 | 2022-12-21 | Чайна Ойлфилд Сервисез Лимитед | Method and device for controlling a hydropulse generator, and a method for determining the equation that controls the rotation of the hydropulse generator rotor |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105784103B (en) * | 2016-01-22 | 2019-01-29 | 北京航空航天大学 | A kind of frequency characteristic measurement method of the change signal-to-noise ratio based on nonlinear frequency modulation excitation |
US20220205959A1 (en) * | 2019-01-16 | 2022-06-30 | Massachusetts Institute Of Technology | Acoustic spectrometer |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5055837A (en) * | 1990-09-10 | 1991-10-08 | Teleco Oilfield Services Inc. | Analysis and identification of a drilling fluid column based on decoding of measurement-while-drilling signals |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4314364A (en) * | 1979-07-26 | 1982-02-02 | Atlantic Richfield Company | Long sweep vibroseis record production |
US5283768A (en) * | 1991-06-14 | 1994-02-01 | Baker Hughes Incorporated | Borehole liquid acoustic wave transducer |
US5124953A (en) * | 1991-07-26 | 1992-06-23 | Teleco Oilfield Services Inc. | Acoustic data transmission method |
DE19646164A1 (en) * | 1996-11-08 | 1998-05-14 | Deutsche Telekom Ag | Process for the transmission of digital signals |
US6509866B2 (en) * | 2000-01-12 | 2003-01-21 | California Institute Of Technology | Fast chirp transform |
-
2005
- 2005-11-19 GB GB0910286A patent/GB2458396B/en active Active
- 2005-11-19 GB GB0910285A patent/GB2458395B/en active Active
- 2005-11-19 CA CA2588059A patent/CA2588059C/en not_active Expired - Fee Related
- 2005-11-19 GB GB0710317A patent/GB2435660B/en active Active
-
2007
- 2007-05-24 NO NO20072656A patent/NO338841B1/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5055837A (en) * | 1990-09-10 | 1991-10-08 | Teleco Oilfield Services Inc. | Analysis and identification of a drilling fluid column based on decoding of measurement-while-drilling signals |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9765615B2 (en) | 2013-08-28 | 2017-09-19 | Evolution Engineering Inc. | Optimizing electromagnetic telemetry transmissions |
US9988897B2 (en) | 2013-08-28 | 2018-06-05 | Evolution Engineering Inc. | Optimizing electromagnetic telemetry transmissions |
US10233747B2 (en) | 2013-08-28 | 2019-03-19 | Evolution Engineering Inc. | Optimizing electromagnetic telemetry transmissions |
RU2786461C1 (en) * | 2020-05-28 | 2022-12-21 | Чайна Ойлфилд Сервисез Лимитед | Method and device for controlling a hydropulse generator, and a method for determining the equation that controls the rotation of the hydropulse generator rotor |
Also Published As
Publication number | Publication date |
---|---|
GB2435660A (en) | 2007-09-05 |
NO338841B1 (en) | 2016-10-24 |
GB2458396A (en) | 2009-09-23 |
GB0910285D0 (en) | 2009-07-29 |
CA2588059C (en) | 2010-06-08 |
NO20072656L (en) | 2007-06-08 |
CA2588059A1 (en) | 2006-06-01 |
GB0910286D0 (en) | 2009-07-29 |
GB2435660B (en) | 2009-10-14 |
GB0710317D0 (en) | 2007-07-11 |
GB2458396B (en) | 2009-11-04 |
GB2458395A (en) | 2009-09-23 |
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