Method and system for broadband analog to digital converter technology

摘要

Methods and systems are provided for calibrating nonlinearity correction during analog-to-digital conversions on received analog signals. Correction-parameters may be estimated, such as to reduce, when applied to total spectral content, distortion resulting from the nonlinearity in originally-unoccupied spectral regions. Digital signals generated based on sampling of the received analog signals may then be corrected, to remove nonlinearity related distortion, based on the estimated correction-parameters. The nonlinearity correction calibration may be performed during reception and handling of the analog signals. The correction-parameters may be generated based on signals located in particular spectral regions, such as the originally-unoccupied spectral regions. These signals may be injected within the device, into the particular spectral regions, and the signal may have known characteristics to enable estimating the required correction.

主权项

1. A method, comprising:
in a device that performs analog-to-digital conversion:
determining when nonlinearity is exhibited during analog-to-digital conversion of received analog signals;when nonlinearity is exhibited, generating correction estimation parameters associated with the received analog signals, wherein applying the correction estimation parameters to total spectral content reduces distortion in originally-unoccupied spectral regions, the distortion resulting from the nonlinearity; andcorrecting based on the correction estimation parameters, digital signals generated based on sampling of the received analog signals.