| 摘要 |
Disclosed is a detector and method for detecting symbol timing synchronization in a digital communication system or an analog communication system. There is provided a detector and method for detecting symbol timing synchronization of a received signal in a communication device, in which a signal is generated by multiplying: i) a received signal or its time delayed signal, and ii) any one of a signal obtained by adding the time delayed signal to the received signal or subtracting the time delayed signal from the received signal, a signal obtained by Hilbert transforming the received signal, and a signal obtained by differentiating the received signal, and the detector outputs the generated signal as a signal for determining symbol timing synchronization. The detector and method for detecting symbol timing synchronization according to the present invention may be efficiently applied to a high order modulation system of highly bandwidth efficient systems, such as a communication system utilizing a QAM or OFDM modulation method. In particular, the detector according to the present invention may be applied to a digital signal and an analog signal, and a digital signal which is similar to an analog signal because of dense data symbols. The detector is not affected by data and carrier frequency. The superiority of its performance may be confirmed from a timing synchronization detector characteristic |
