SYSTEMS AND METHOD FOR FREQUENCY BASED SATELLITE CHANNEL SCANNING
摘要
<p>A satellite signal demodulator is configured to use frequency-based channel scanning to sense the presence of a channel and to obtain the frequency profile of the channel. Once the channel is identified and the profile is obtained, channel extraction is used to identify the frequency parameters for a given channel. A coarse parameter estimation is performed to obtain a coarse estimate of the symbol rate (SR) and the center frequency (fc) of the channel. The coarse estimation can then be followed by a fine estimation of the symbol rate and center frequency (f0), using a bit tracking loop (BTL) lock indicator.</p>
申请公布号
WO2007133190(A2)
申请公布日期
2007.11.22
申请号
WO2006US16721
申请日期
2006.05.01
申请人
CONEXANT SYSTEMS, INC.;SHAMAIN, PRASAD;NEE, CHI-PING;KALIT, GADI