Analysis of the self-interference model and compensation methods in airborne electromagnetics
- 1. Institute of Control Sciences, Moscow, Russia, karshakov@ipu.ru
- 2. Institute of Control Sciences, Moscow, Russia, ekaterina_tretikova@mail.ru
- 3. Aerogeophysica, Moscow, Russia, kaplun@aerogeo.ru
Description
We compare various compensation methods for the EQUATOR system and for several modifications of the airborne electromagnetic system 4: with a transmitter loop attached to the fuselage of Mi-8 helicopter, with a loop attached to the fuselage of An-3 aircraft, and with a loop towed by Eurocopter AS350B3. We consider two ways of the transmitter signals interference modeling: in the form of a stationary systematic component of the measurements and in the form of a stationary field vector rigidly connected to the transmitter. To implement the second approach, the 4 and the EQUATOR use two additional dipoles to determine the relative location of the transmitter and the receiver. At high altitude, in the absence of a response from the ground, the following statistical parameters of the signals remaining after interference compensation were analyzed: the standard deviation and the difference between the minimum and the maximum values.
Other
Open-Access Online Publication: October 30, 2023Files
AEM2023_ID021.pdf
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