학술논문

A low-power correlator ASIC for arrays with many antennas
Document Type
Conference
Source
2016 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM) Radio Science Meeting (USNC-URSI NRSM), 2016 United States National Committee of URSI National. :1-2 Jan, 2016
Subject
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Geoscience
Photonics and Electrooptics
Signal Processing and Analysis
Correlators
Bandwidth
Application specific integrated circuits
Correlation
Silicon
Performance evaluation
Clocks
Language
Abstract
We report the design of a new application-specific integrated circuit (ASIC) for use in radio telescope correlators. It supports the construction of correlators for an arbitrarily large number of signals. The ASIC uses an intrinsically low-power architecture along with design techniques and a process that together result in unprecedentedly low power consumption. The design is flexible in that it can support telescopes with almost any number of antennas N. It is intended for use in an "FX" correlator, where a uniform filter bank breaks each signal into separate frequency channels prior to correlation.