TW200623664A - Iterative fast fourier transform error correction - Google Patents
Iterative fast fourier transform error correctionInfo
- Publication number
- TW200623664A TW200623664A TW094111917A TW94111917A TW200623664A TW 200623664 A TW200623664 A TW 200623664A TW 094111917 A TW094111917 A TW 094111917A TW 94111917 A TW94111917 A TW 94111917A TW 200623664 A TW200623664 A TW 200623664A
- Authority
- TW
- Taiwan
- Prior art keywords
- data
- fourier transform
- estimated
- data signals
- transmitted
- Prior art date
Links
Landscapes
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Data is to be estimated from a received plurality of data signals in a code division multiple access communication system. The data signals are transmitted in a shared spectrum at substantially a same time. A combined signal of the transmitted data signals are received over the shared spectrum and sampled. A channel response for the transmitted data signals is estimated. Data of the data signals is estimated using the samples and the estimated channel response. The data estimation uses a fourier transform based data estimating approach. An error in the data estimation introduced from a circulant approximation used in the fourier transform based approach is iteratively reduced.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/004,370 US7027489B2 (en) | 2001-04-06 | 2001-11-01 | Iterative fast fourier transform error correction |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200623664A true TW200623664A (en) | 2006-07-01 |
TWI269540B TWI269540B (en) | 2006-12-21 |
Family
ID=38291587
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW095142889A TW200737758A (en) | 2001-11-01 | 2002-04-04 | Iterative fast fourier transform error correction |
TW094134538A TW200637191A (en) | 2001-11-01 | 2002-04-04 | Iterative fast fourier transform error correction |
TW94111917A TWI269540B (en) | 2001-11-01 | 2002-04-04 | Iterative fast fourier transform error correction |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW095142889A TW200737758A (en) | 2001-11-01 | 2002-04-04 | Iterative fast fourier transform error correction |
TW094134538A TW200637191A (en) | 2001-11-01 | 2002-04-04 | Iterative fast fourier transform error correction |
Country Status (1)
Country | Link |
---|---|
TW (3) | TW200737758A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8064550B2 (en) | 2007-03-09 | 2011-11-22 | Qualcomm, Incorporated | Quadrature imbalance estimation using unbiased training sequences |
US8428175B2 (en) | 2007-03-09 | 2013-04-23 | Qualcomm Incorporated | Quadrature modulation rotating training sequence |
US8290083B2 (en) | 2007-03-09 | 2012-10-16 | Qualcomm Incorporated | Quadrature imbalance mitigation using unbiased training sequences |
-
2002
- 2002-04-04 TW TW095142889A patent/TW200737758A/en unknown
- 2002-04-04 TW TW094134538A patent/TW200637191A/en unknown
- 2002-04-04 TW TW94111917A patent/TWI269540B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TWI269540B (en) | 2006-12-21 |
TW200637191A (en) | 2006-10-16 |
TW200737758A (en) | 2007-10-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10784907B2 (en) | Apparatus to detect interference in wireless signals | |
TW200729756A (en) | Fast joint detection | |
US8254503B1 (en) | Tracking automatic gain control of orthogonal frequency domain multiplexing systems | |
NO20023119L (en) | Channel estimation for time-shared duplex communication systems | |
AU2001271322A1 (en) | Sliding-window processing for the reception of multicarrier signals | |
WO2006041699A3 (en) | System and method for providing digital network access and digital broadcast services using combined channels on a single physical medium to the customer premises | |
AU2003298522A1 (en) | Scaling using gain factors for use in data detection for wireless code division multiple access communication systems | |
TR199900019T2 (en) | A D.C. that varies in a sampled signal. method and device for balancing slippage | |
US20140093109A1 (en) | Channel crosstalk removal | |
CN108055039B (en) | All-digital calibration module for TIADC sampling time error and calibration method thereof | |
MY133254A (en) | Iterative fast fourier transform error correction | |
US20190052311A1 (en) | Full duplex transceivers having digital distortion compensation and methods of thereof | |
AU2013271536B2 (en) | Signal receiver with group delay and amplitude distortion compensation | |
CN102571665A (en) | Method for eliminating interference in a receiver, and associated apparatus | |
FI101919B (en) | Method for calculating impulse response and receiver | |
US20180287675A1 (en) | Lattice reduction-aided symbol detection | |
US9191046B2 (en) | Reception device | |
US8019007B2 (en) | Device, system, and method of flicker noise mitigation | |
TW200637191A (en) | Iterative fast fourier transform error correction | |
US20190319653A1 (en) | Non-linear interference detection | |
CN112152624A (en) | Compensation device and method, storage medium and electronic device | |
Koivisto et al. | Blind despreading of short-code DS-CDMA signals in asynchronous multi-user systems | |
EP1475932A3 (en) | Interferer detection and channel estimation for wireless communication networks | |
US7756006B2 (en) | Communication device | |
US8054921B2 (en) | Mitigating noise created by spread spectrum clocks |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |