Channel estimating device with optimized search and method thereof

• Main Authors: HONG QINGBIAO, LAI GUOLI
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2008
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention provides a channel evaluating device and method with optimization search. The channel evaluating device comprises a channel evaluating unit of time axis, a peak value sensing module, a first shifting unit, a channel evaluating unit of frequency domain axis, and a shift optimization searching module. The channel evaluating unit of time axis is used to implement the channel evaluation of time dimension and evaluates the initial channel frequency response. The peak value sensing module outputs the information of peak value. The shift optimization searching module decides the best shift information based on the information of peak value, feedback signal and integrated channel frequency response. The first shifting unit adjusts the position of initial channel frequency response on time field according to the best shift information. The channel evaluating unit of frequency domain axis performs the channel evaluation of time dimension and evaluates the integrated channel frequency response.