JP4051037B2 - 準同期検波回路 - Google Patents
準同期検波回路 Download PDFInfo
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- JP4051037B2 JP4051037B2 JP2004032165A JP2004032165A JP4051037B2 JP 4051037 B2 JP4051037 B2 JP 4051037B2 JP 2004032165 A JP2004032165 A JP 2004032165A JP 2004032165 A JP2004032165 A JP 2004032165A JP 4051037 B2 JP4051037 B2 JP 4051037B2
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- quadrature
- error
- component
- quasi
- synchronous detection
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Description
Claims (3)
- 入力された同相成分および直交成分に対し準同期検波を行う準同期検波部と、入力された同相成分および直交成分の直交誤差を補正する直交誤差補正部と、を備える準同期検波回路において、
直交誤差補正部は、
直交誤差が無い状態で想定される平均電力PT、入力された同相成分WI、直交成分WQに基づいて、直交誤差tan(Δθ)を、
前記直交誤差tan(Δθ)を直交成分に乗算した信号と同相成分とを加算して補正後の同相成分を取得し、また、前記直交誤差tan(Δθ)を同相成分に乗算した信号と直交成分とを加算して補正後の直交成分を取得する補正処理部と、
を含むことを特徴とする準同期検波回路。 - 前記振幅補正部、前記直交誤差補正部、および前記準同期検波部を、この順に備えることを特徴とする請求項2に記載の準同期検波回路。
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JP2004032165A JP4051037B2 (ja) | 2004-02-09 | 2004-02-09 | 準同期検波回路 |
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JP2004032165A JP4051037B2 (ja) | 2004-02-09 | 2004-02-09 | 準同期検波回路 |
Publications (3)
Publication Number | Publication Date |
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JP2005223840A JP2005223840A (ja) | 2005-08-18 |
JP2005223840A5 JP2005223840A5 (ja) | 2006-06-08 |
JP4051037B2 true JP4051037B2 (ja) | 2008-02-20 |
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JP2004032165A Expired - Fee Related JP4051037B2 (ja) | 2004-02-09 | 2004-02-09 | 準同期検波回路 |
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JP (1) | JP4051037B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US8654885B2 (en) | 2006-06-06 | 2014-02-18 | Qualcomm Incorporated | Fast in-phase and quadrature imbalance calibration |
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JP2005223840A (ja) | 2005-08-18 |
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