Development of a Crosstalk Suppression Algorithm for KID Readout
- 61 Downloads
The GroundBIRD telescope aims to detect B-mode polarization of the cosmic microwave background radiation using the kinetic inductance detector array as a polarimeter. For the readout of the signal from detector array, we have developed a frequency division multiplexing readout system based on a digital down converter method. These techniques in general have the leakage problems caused by the crosstalks. The window function was applied in the field programmable gate arrays to mitigate the effect of these problems and tested it in algorithm level.
KeywordsKID Readout DDC Crosstalk
This work is supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (Grant No. NRF-2016R1D1A1B03930847).
- 4.T. Nagasaki et al., J. Low Temp. Phys., this Special Issue LTD17 (2018). https://doi.org/10.1007/s10909
- 5.Duan, R., McHugh, S. et al., in Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, pp. 77411V (2010). https://doi.org/10.1117/12.856832
- 10.A.V. Oppenheim, R.W. Schafer, J.R. Buck, Discrete-Time Signal Processing (Prentice Hall, Prentice, 1999)Google Scholar