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In the electromagnetic coupling system, the sinusoidal coupling signal extraction is crucial. It will be difficult to extract the signal parameters because of the possibility of signal frequency offset and saturation. Hence, this paper proposes an algorithm combined Artificial Bee Colony algorithm (ABC) and the Levenberg-Marquardt(LM) algorithm to extract sinusoidal parameters from saturation sinusoidal...
We propose an efficient and effective magnetic tracking method in this paper. The tracking method is based on tri-axial transmitting coils and uniaxial sensing of the generated electromagnetic field. Three mutually orthogonal transmitting coils are excited simultaneously with alternating current (AC) signals of different frequency. At a specific position, the sum of amplitude square of the three different...
An electromagnetic based tracking method is proposed in this paper, which can provide 6D position and orientation information. This method is based on triaxial transmitting coils and triaxial sensing coils, which are based on the electromagnetic field. Transmitting coils fed with different frequency alternating current (AC) signals comprise the magnetic field source, which can be seen as three orthogonal...
In the program of bone surgery robot, we employ an electromagnetic method to locate the position of surgical instruments and surgical sites. In this processing, the key part is to extract the coupling voltage signals that are sensed by the sensing coils as accurately as possible, because it will affect the precision of location directly. However, in the real system, these coupling voltage signals...
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