BIT INTERLEAVING TECHNIQUE AS A RADAR INTERFERENCE CANCELER

Recently, degradation due to radar interference has been reported in h igh-frequency efficiency microwave radio systems. However, there has b een no solution to this problem. This paper proposes a bit interleavin g technique as a radar interference canceller and presents a designing method and its performance in digital microwave radio systems. First, the characteristics of radar interference are described. Next, the bi t interleaving technique is proposed as an interference canceller for maritime radar, whose source is difficult to determine. Next, the meth od of designing the bit interleaving on a channel with burst errors an d random errors is described. Finally, the effectiveness of the cancel ler is shown by the experimental results obtained using a prototype. T he results show that bit interleaves can correct errors due to radar i nterference.