Study on Digital Signal Synchronization System of Confocal Micro Endoscope

Abstract

Abstract: Laser confocal scanning micro endoscopy has become the focus of current research because of its ability to achieve high-resolution real-time histological diagnosis and certain depth tomography imaging. In the digital communication system of laser confocal scanning micro endoscopy, since the two communication parties are not in the same place, there is a certain transmission delay between the received signal and the transmitted signal. In order to make the two parties work in harmony, a synchronization system must be provided to ensure it. In this paper, the parabola interpolation filter is selected as the interpolation filter, and the Gardner algorithm is selected as the timing error detection module. MATLAB software is used to simulate the digital signal synchronization system of confocal micro endoscope. Finally, we use the signaltap II provided by Quartus II to conduct online logic analysis in FPGA to see whether the results meet the design requirements.