DEVICE AND METHOD FOR CORRECTING ERROR ESTIMATION OF ANALOG-TO-DIGITAL CONVERTER |
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| 申请号 | US15742835 | 申请日 | 2015-08-20 | 公开(公告)号 | US20180358976A1 | 公开(公告)日 | 2018-12-13 |
| 申请人 | NO. 24 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION; | 发明人 | Jie PU; Gangyi HU; Xiaofeng SHEN; Xueliang XU; Dongbing FU; Ruitao ZHANG; Youhua WANG; Yuxin WANG; Guangbing CHEN; Ruzhang LI; | ||||
| 摘要 | A method for an analog-to-digital converter correcting error estimation includes: according to a correction parameter preset initial value, generating a control signal and finely tuning a digital control delay cell, adjusting a delay amount, and correcting a clock phase error between channels; according to a correction parameter initial value, correcting a gain error between channels, generating and buffering a general correction signal, and triggering a counting cell to start counting, and calling the general correction signal in a buffer and generating a preliminary estimation result by using a cyclic correlation method; when counting to a preset value, setting low-pass filter accumulating cell enable ends and a correction parameter updating cell, generating an error estimation result from the preliminary estimation result and latching it, updating a clock correction parameter and a gain correction parameter according to a gradient descent method, and latching them, and resetting to carry out cyclic estimation correction. | ||||||
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