BASELINE DRIFT ELIMINATION APPARATUS AND RECEIVER

Title:

BASELINE DRIFT ELIMINATION APPARATUS AND RECEIVER

Document Type and Number:

WIPO Patent Application WO/2021/104382

Kind Code:

A1

Abstract:

Proposed in the present application are a baseline drift elimination apparatus and a receiver. The baseline drift elimination apparatus comprises: an analog processing module, an analog-to-digital conversion module, a judgment module, an error estimation module, a digital compensation acquisition module, a digital compensation module, an analog compensation acquisition module, an analog compensation module and a digital-to-analog conversion module, wherein the analog compensation acquisition module is configured to output, according to a baseline drift error output by the error estimation module, a low-frequency error component included in the baseline drift error, and the digital compensation acquisition module is configured to output, according to the baseline drift error, a high-frequency error component included in the baseline drift error. During baseline drift elimination, baseline drift compensation can be carried out quickly and accurately; in addition, the effect of a baseline drift on a nonlinear distortion of an analog circuit is reduced, thus improving the accuracy of signal reception.

Inventors:

LU TIANJI (CN)
LU XIAOFAN (CN)
ZHANG YULONG (CN)

Application Number:

PCT/CN2020/131828

Publication Date:

June 03, 2021

Filing Date:

November 26, 2020

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SANECHIPS TECH CO LTD (CN)

International Classes:

H04B1/12; H03M1/10

Foreign References:

CN102480292A	2012-05-30
CN109039964A	2018-12-18
CN102164104A	2011-08-24
CN101261863A	2008-09-10
US20100168595A1	2010-07-01

Other References: