Abstract
In this paper, we propose a low computational equalization method for capsule endoscope (CE) system. In CE system, low power transmission and reception is essential because the devices which are transplanted or patched on human body should be small and durable to allow the patient to move freely. Also, the pace of change in channel between CE and receiver is quite variable due to the bowel movements. Therefore, it is necessary to design a low computational equalizer structure for CE system, because there are difficulties in practical application of the conventional equalization due to its high computational complexity. Therefore, we propose an equalization method that focuses on reducing computational complexity. The proposed method adaptively decides the requirement of filter update with simple operation, and we verified that the proposed method improves the performance versus computational complexity trade-offs efficiently compared to the conventional method.
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