【摘要】 提出了一种适合于卷积码的新的交错方案 :块交错方案 ,并对采用块交错方案的 ( 2 ,1 ,3)卷积码在移动图像通信系统中的抗干扰性能进行了计算机模拟 ,且与周期交错方案的结果做了比较。模拟结果表明 :周期交错方案不适合于卷积码 ,而采用块交错方案的 ( 2 ,1 ,3)卷积码可明显改善图像质量 ,大大提高了快衰落移动信道环境中图像通信系统的可靠性。更多还原

【Abstract】 In this paper, a novel interleaving scheme suitable to convolutional code is given as block interleaving scheme. The anti-interference performance of (2,1,3) convolutional code using this scheme in mobile image communication system is studied and compared with the performance using traditional periodic interleaving scheme. The simulation results show that periodic interleaving scheme is not suitable to convolutional code. The reliability of image transmission system in fast fading mobile channel can be improved greatly by adopting (2,1,3) convolutional code combined with block interleaving scheme as the anti-interference measure.更多还原