GB2215544B - Apparatus for the correction of frequency independent errors in quadrature zero i.f. radio architectures - Google Patents
Apparatus for the correction of frequency independent errors in quadrature zero i.f. radio architecturesInfo
- Publication number
- GB2215544B GB2215544B GB8805748A GB8805748A GB2215544B GB 2215544 B GB2215544 B GB 2215544B GB 8805748 A GB8805748 A GB 8805748A GB 8805748 A GB8805748 A GB 8805748A GB 2215544 B GB2215544 B GB 2215544B
- Authority
- GB
- United Kingdom
- Prior art keywords
- correction
- frequency independent
- radio architectures
- independent errors
- quadrature zero
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/22—Homodyne or synchrodyne circuits
- H03D1/2245—Homodyne or synchrodyne circuits using two quadrature channels
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8805748A GB2215544B (en) | 1988-03-10 | 1988-03-10 | Apparatus for the correction of frequency independent errors in quadrature zero i.f. radio architectures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8805748A GB2215544B (en) | 1988-03-10 | 1988-03-10 | Apparatus for the correction of frequency independent errors in quadrature zero i.f. radio architectures |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8805748D0 GB8805748D0 (en) | 1988-04-07 |
GB2215544A GB2215544A (en) | 1989-09-20 |
GB2215544B true GB2215544B (en) | 1992-02-19 |
Family
ID=10633205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8805748A Expired - Lifetime GB2215544B (en) | 1988-03-10 | 1988-03-10 | Apparatus for the correction of frequency independent errors in quadrature zero i.f. radio architectures |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2215544B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2184833T3 (en) * | 1995-02-21 | 2003-04-16 | Tait Electronics Ltd | NULL INTERMEDIATE FREQUENCY RECEIVER. |
GB2310115B (en) * | 1996-02-08 | 2000-06-07 | Nokia Mobile Phones Ltd | Method and apparatus for dc compensation |
GB2311902B (en) * | 1996-04-04 | 2000-05-10 | Plessey Semiconductors Ltd | An error correction circuit |
JP2002519997A (en) * | 1998-04-23 | 2002-07-02 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | IF receiver |
US6340903B1 (en) | 2000-05-10 | 2002-01-22 | Zilog, Ind. | Auto-zero feedback sample-hold system |
US20060007999A1 (en) * | 2004-07-08 | 2006-01-12 | Gomez Ramon A | Method and system for enhancing image rejection in communications receivers using test tones and a baseband equalizer |
WO2008026178A2 (en) * | 2006-08-31 | 2008-03-06 | Nxp B.V. | Frequency dependent i/q imbalance estimation |
-
1988
- 1988-03-10 GB GB8805748A patent/GB2215544B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB8805748D0 (en) | 1988-04-07 |
GB2215544A (en) | 1989-09-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940310 |