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ST319 - SQUID-based multiplexing by slope switching and binary-to-Hadamard address translation
SQUID-based Multiplexing by Slope Switching
and Binary-to-Hadamard Address Translation
Mikko Kiviranta and Nikolai Beev
Abstract - We have demonstrated multiplexing and demultiplexing of seven test signals using the Hadamard basis set. The encoding utilizes the sign change of the SQUID gain when a Φ0/2 flux shift occurs. The periodicity of the SQUID response allows recursive construction of in principle arbitrarily high order Hadamard matrices out of binary addresses and hence makes possible to access N channels by log2 N address lines.
Index Terms - Code division multiplexing, SQUIDs, Superconducting photodetectors.
IEEE/CSC & ESAS European Superconductivity News Forum (ESNF) No. 22 October/November 2012. ESNF Reference No. ST319; Category 4
The published version of this preprint appeared in IEEE Transactions on Applied Superconductivity 23, 2500604 (June 2013).