| US 7,570,717 B2 | ||
| Apparatus and method for pilot-less carrier acquisition of vestigial sideband (VSB) signal | ||
| Min-ho Kim, Suwon-si (Korea, Republic of); Beom-kon Kim, Daegu (Korea, Republic of); Dong-seog Han, Daegu (Korea, Republic of); Hae-sock Oh, Daegu (Korea, Republic of); Junling Zhang, Yongin-si (Korea, Republic of); and Ki-dong Kang, Anyang-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (Korea, Republic of) | ||
| Filed on Jan. 18, 2005, as Appl. No. 11/35,744. | ||
| Claims priority of application No. 10-2004-0003803 (KR), filed on Jan. 19, 2004. | ||
| Prior Publication US 2005/0157821 A1, Jul. 21, 2005 | ||
| Int. Cl. H04L 27/00 (2006.01) | ||
| U.S. Cl. 375—326 | 35 Claims |
| 1. A method of estimating a pilot-less carrier wave frequency offset comprising:
receiving, by an automatic frequency controller, a vestigial sideband (VSB) signal for which a pilot has been removed, and
performing, by the automatic frequency controller, self-correlation by correlating neighboring pseudorandom noise 63 (PN63)
signals;
estimating, by the automatic frequency controller, the frequency offset of the received VSB signal by sampling, delaying,
and multiplying the self-correlated PN63 signal; and
confirming, by an automatic frequency controller, whether or not the estimated frequency offset value is within a PN63 range.
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