FIELD: information technology.
SUBSTANCE: method of transmitting information through logging cable involves generation of a continuous signal consisting of a set of signals. Each signal from the set is one period of a periodic signal which is symmetrical about the zero level, the initial and end point of which is determined at the point at which the signal reaches the zero level. Values of the period and/or amplitude and/or phase of the periodic signal are selected from discrete sets generated for the period, amplitude and phase, respectively. The total number of set elements is greater than two, a unit of transmitted information is coded using combination thereof, and the signal obtained at the output of the logging cable is decoded based on its period and/or amplitude and/or phase values.
EFFECT: larger amount of information transmitted per unit time, high noise-immunity and less quality requirements for the logging cable.
2 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| INFORMATION TRANSMISSION METHOD | 2013 |
|
RU2533105C1 |
| ACOUSTIC WELL-LOGGING APPARATUS | 0 |
|
SU693309A1 |
| 0 |
|
SU234297A1 | |
| METHOD FOR DEPTH MEASURING IN GEOPHYSICAL INVESTIGATIONS OF OIL AND GAS WELLS (VERSIONS) | 2008 |
|
RU2375568C1 |
| MULTI-CHANNEL EQUMIPMENT FOR WELL-LOGGING (ITS VERSIONS) | 0 |
|
SU1024859A1 |
| METHODS AND SYSTEMS FOR DOWNHOLE TELEMETRY | 2010 |
|
RU2529595C2 |
| VIDEOLOGGING APPARATUS | 0 |
|
SU697706A1 |
| WELL TELEMETRY SYSTEM (VARIANTS) AND METHOD FOR GEOPHYSICAL RESEARCH IN PROCESS OF DRILLING (VARIANTS) | 2003 |
|
RU2310215C2 |
| DEEP WELL-TO-GROUND INFORMATION TRANSMISSION METHOD | 0 |
|
SU1134708A1 |
| METHOD DETERMINING COORDINATES OF MOBILE OBJECT, METHOD OF IDENTIFICATION OF SUBSCRIBERS AND FIXING THEIR POSITIONS, RADIO COMMUNICATION SYSTEM OF SUBSCRIBERS WITH CENTRAL STATION WITH IDENTIFICATION OF SUBSCRIBERS AND FIXING THEIR POSITIONS | 1997 |
|
RU2126174C1 |
