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|
|Number of pages||22|
|State||Published - 2014|
|Name||Analog Circuits and Signal Processing|
Bibliographical notePublisher Copyright:
© 2014, Springer Science+Business Media New York.
- Clock Phase
- Operational Transconductance Amplifier
- Sampling Capacitor
- Software Define Radio
- Twiddle Factor