TY - GEN
T1 - High Dynamic Range adaptive ΔΣ-based Focal Plane Array architecture
AU - Yao, Shun
AU - Kavusi, Sam
AU - Salama, Khaled N.
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2012/5/1
Y1 - 2012/5/1
N2 - In this paper, an Adaptive Delta-Sigma based architecture for High Dynamic Range (HDR) Focal Plane Arrays is presented. The noise shaping effect of the Delta-Sigma modulation in the low end, and the distortion noise induced in the high end of Photo-diode current were analyzed in detail. The proposed architecture can extend the DR for about 20N log2 dB at the high end of Photo-diode current with an N bit Up-Down counter. At the low end, it can compensate for the larger readout noise by employing Extended Counting. The Adaptive Delta-Sigma architecture employing a 4-bit Up-Down counter achieved about 160dB in the DR, with a Peak SNR (PSNR) of 80dB at the high end. Compared to the other HDR architectures, the Adaptive Delta-Sigma based architecture provides the widest DR with the best SNR performance in the extended range.
AB - In this paper, an Adaptive Delta-Sigma based architecture for High Dynamic Range (HDR) Focal Plane Arrays is presented. The noise shaping effect of the Delta-Sigma modulation in the low end, and the distortion noise induced in the high end of Photo-diode current were analyzed in detail. The proposed architecture can extend the DR for about 20N log2 dB at the high end of Photo-diode current with an N bit Up-Down counter. At the low end, it can compensate for the larger readout noise by employing Extended Counting. The Adaptive Delta-Sigma architecture employing a 4-bit Up-Down counter achieved about 160dB in the DR, with a Peak SNR (PSNR) of 80dB at the high end. Compared to the other HDR architectures, the Adaptive Delta-Sigma based architecture provides the widest DR with the best SNR performance in the extended range.
UR - http://hdl.handle.net/10754/249012
UR - http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6190052
UR - http://www.scopus.com/inward/record.url?scp=84861308963&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2011.6190052
DO - 10.1109/ACSSC.2011.6190052
M3 - Conference contribution
SN - 9781467303231
SP - 505
EP - 510
BT - 2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR)
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -