Synthetic Diversity To Mitigate Out-of-Band Interference in Widely Tunable Wireless Receivers
| Autor: | Sweta Soni, Sanaz Sadeghi, Zachariah Boynton, Alyosha Molnar |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
business.industry
Computer science 020208 electrical & electronic engineering Phase (waves) 02 engineering and technology Software-defined radio Interference (wave propagation) Computer Science::Hardware Architecture Amplitude Hardware_GENERAL Phase noise 0202 electrical engineering electronic engineering information engineering Electronic engineering Wireless business Digital signal processing Computer Science::Information Theory Communication channel |
| Zdroj: | ACSSC |
| DOI: | 10.1109/ieeeconf44664.2019.9048662 |
| Popis: | Here we present a combined RF hardware/DSP technique to synthesize effective channel diversity in single-antenna wireless systems. This allows digital suppression of out-of-band interference artifacts in widely tunable wireless receivers with one or more antennas, including artifacts from LO phase noise. A passive inductor-capacitor (LC) network provides gain and phase diversity between channels and across frequency. Since amplitude and phase of in-band artifacts are set by the amplitude and phase of the out-of-band interference that generates them, they can be suppressed in DSP without knowledge about the interferer itself. The feasibility of this approach is demonstrated mathematically, with numerical system simulations, and full circuit simulation. |
| Databáze: | OpenAIRE |
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