CRAFT: Charge Re-use Analog Fourier Transform

Bodhisatwa Sadhu; Ramesh Harjani

doi:10.1007/978-1-4614-9296-2_5

CRAFT: Charge Re-use Analog Fourier Transform

Bodhisatwa Sadhu, Ramesh Harjani

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

Conventional software defined radios (SDR) (Mitola, Software radios–survey, critical evaluation and future directions, in Telesystems Conference 1992) strive to digitize the RF signal and perform spectrum sensing in the digital domain. However, for wideband inputs, this translates to infeasible ADC specifications (Abidi, IEEE Journal of Solid-State Circuits, 2007). Time interleaving (O’Donnel and Brodersen, IEEE Transactions on Vehicular Technology, 2005) and N-path filter-banks (Valezquez et al., Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis, 1994; Namgoong, IEEE Transactions for Wireless Communications, 2003) have been proposed to tackle instantaneous wideband digitization. However, while time interleaving the ADCs reduces their speed, the input dynamic range (exponentially related to ADC power) remains large.

Original language	English (US)
Title of host publication	Analog Circuits and Signal Processing
Publisher	Springer
Pages	43-64
Number of pages	22
DOIs	https://doi.org/10.1007/978-1-4614-9296-2_5
State	Published - 2014

Publication series

Name	Analog Circuits and Signal Processing
Volume	115
ISSN (Print)	1872-082X
ISSN (Electronic)	2197-1854

Bibliographical note

Publisher Copyright:
© 2014, Springer Science+Business Media New York.

Keywords

Clock Phase
Operational Transconductance Amplifier
Sampling Capacitor
Software Define Radio
Twiddle Factor

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10.1007/978-1-4614-9296-2_5

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CRAFT: Charge Re-use Analog Fourier Transform

Abstract

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Bibliographical note

Keywords

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