Turbo Equalization Technique for Data Link Communication Systems

The development of data link has greatly changed the operation mode of modern war. The complexity of wireless communication channel makes the high rate of data transmission become one of the important research topics in data link communication technology. In order to enhance the reliability of the system, channel equalization technology can be used to eliminate ISI (Inter Symbol Interference). Equalization is similar to "whitening filter", which is to "smooth" the frequency response of the channel. Different from the traditional equalization method, the equalization and decoding is combined in the Turbo equalization technology. By recycling the soft information, the bit error rate can be reduced. The Turbo equalization technology can make full use of known information. The soft information can be recycled in each iteration. The simulation results show that the performance of data link communication system can be improved by the Turbo equalization technique. This paper mainly studies the Turbo equalization technology for data link communication systems.