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Showing 1 to 2 of 2 for “"ΣΔ modulator"”.
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Analysis and design of ΣΔ Modulators for Radio Frequency Switchmode Power Amplifiers
… be achieved when the transmitted RF signal is ΣΔ modu- lated, and subsequently amplified by a nonlinear device. Although in theory this approach offers linearity and efficiency reaching 100%, the use of ΣΔ modulation for transmitting wideband signals causes problems in practical implementation: …
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Digital calibration of nonlinear memory errors in sigma-delta ADCs
… model are proposed to linearize sigma-delta (ΣΔ) modulators. A sequential power series (a special form of Volterra series) is found sufficient to model the nonlinear memory errors in a discrete-time integrator (DTI), which entails the application of adaptive polynomial transversal filtering …