High Speed Receiver for Capsule Endoscope
- Affiliated Author(s)
- 박희준
- Alternative Author(s)
- Park, Hee Jun
- Journal Title
- Journal of Medical Systems
- ISSN
- 0148-5598
- Issued Date
- 2010
- Keyword
- Capsule endoscope; High speed transmission; Wide band receiver; High speed ADC; Software defined radio (SDR)
- Abstract
- In this study, a high-speed receiver for a capsule
endoscope was proposed and implemented. The proposed
receiver could receive 20 Mbps data that was sufficient
to receive images with a higher resolution than conventional
receivers. The receiver used a 1.2 GHz band to
receive radio frequency (RF) signal, and demodulated the
signal to an intermediate frequency (IF) stage (150 MHz). The demodulated signal was amplified, filtered, and undersampled
by a high-speed analog-to-digital converter
(ADC). In order to decode the under-sampled data in real
time, a simple frequency detection algorithm was selected
and was implemented by using a FPGA. The implemented
system could receive 20 Mbps data.
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