FIELD: radiolocation.
SUBSTANCE: disclosed is a system for determining frequency diversities for preventing interference caused by intermodulation distortion signals. The system (800) comprises a unit (810) of sensors and a module (820) of calibration of measuring devices, said unit being connected to a unit (810) of sensors. The module (820) of calibration of measuring devices is designed in such a way that it is capable of determining the frequency of the first signal which must be given to the unit (810) of sensors of the vibration measuring device and setting a demodulation window near the frequency of the first signal. The module (800) of calibration of measuring devices is also designed in such a way that it is capable of determining the frequency of the second signal which must be given to the unit of sensors in such a way that the frequency of the intermodulation distortion signal formed by means of the first signal and the second signal, is located outside the demodulation window.
EFFECT: invention enables preventing interference caused by intermodulation distortion signals.
22 cl, 8 dwg, 1 tbl
Title | Year | Author | Number |
---|---|---|---|
BAND-REJECTION FILTER IN VIBRATORY FLOW METER | 2017 |
|
RU2731028C1 |
METHOD AND SYSTEM FOR DISCRETE MULTITONAL TRANSMISSION WITH MULTIPLE MODULATIONS | 2015 |
|
RU2667087C1 |
REDUCTION OF RATIO OF MAXIMUM POWER TO MEAN POWER FOR FM TRANSMISSION WITH MODULATION WITH ORTHOGONAL FREQUENCY-DIVISION OF CHANNELS | 2005 |
|
RU2359409C2 |
METHOD FOR TRANSMITTING VOCAL SIGNALS | 1993 |
|
RU2049456C1 |
ELECTRONIC METER AND METHODS FOR FLOW METER VERIFICATION DIAGNOSTICS | 2018 |
|
RU2766256C1 |
METHOD AND DEVICE FOR RAISING NOISE IMMUNITY OF RECEIVER | 1995 |
|
RU2196384C2 |
METHOD AND DEVICE TO INCREASE NOISE IMMUNITY OF RECEIVER | 2007 |
|
RU2448411C2 |
DEVICE FOR RECEPTION OF SPEECH SIGNALS | 1993 |
|
RU2049426C1 |
TRANSFER OF PILOT-SIGNAL SYMBOLS IN SYSTEMS OF WIRELESS COMMUNICATION | 2006 |
|
RU2405256C2 |
VIBRATORY FLOWMETER AS WELL AS METHODS AND DIAGNOSTICS FOR CHECKING METER | 2014 |
|
RU2628661C1 |
Authors
Dates
2021-02-12—Published
2017-06-14—Filed