Method for realizing federated filtering and timing synchronization in digital communication system

• Main Authors: LIU CELUN, LUO CHANGQING
• Format: Patent
• Language: Chinese; English
• Published: 15.02.2012
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a method for realizing federated filtering and timing synchronization in a digital communication system. The method comprises the following specific steps of: 1, selecting the length for FFT (Fast Fourier Transform) according to a required parallel path number; 2, performing frequency domain filtering; 3, performing timing error compensation in the frequency domain; and 4, calculating a timing error and outputting data subjected to filtering and timing synchronization. According to the method for realizing federated filtering and timing synchronization in the invention, a filter is combined with timing synchronization, the synchronous output path number of the filter is reduced, the computationally expensive required during realization is greatly reduced, the complexity required during realization is lowered, and a system can meet the requirement for high-speed digital communication.