| 一种应用于FM IBOC DAB系统的比特交织编码调制方案 |
| |
| 引用本文： | 冯云飞,李建平,董跃. 一种应用于FM IBOC DAB系统的比特交织编码调制方案[J]. 高技术通讯, 2010, 20(1). DOI: 10.3772/j.issn.1002-0470.2010.01.009 |
| |
| 作者姓名： | 冯云飞 李建平 董跃 |
| |
| 作者单位： | 中国传媒大学信息工程学院,北京,100024 |
| |
| 基金项目： | 教育部科学技术重点项目，教育部留学回国人员科研启动基金项目 |
| |
| 摘 要： | 提出了一种适用于FM IBOC广播系统的比特交织编码调制方案。此方案结合互补增信删余卷积码(CPPC)和基于迭代译码的比特交织编码调制(BICM-ID)算法。互补增信删余卷积码能有效抵抗FM IBOC系统中面对的第一邻频干扰和无线信道噪声、衰落等干扰。同时,运用基于软判决反馈迭代译码的比特交织编码调制算法,可以不通过扩展频带来提高FM IBOC广播系统在瑞利信道中的编码增益。仿真结果表明,本方案能有效提高FM IBOC广播系统的接收性能。
|
| 关 键 词： | 带内同频(IBOC) 第一邻频干扰 互补增信删余卷积码(CPPC) 基于迭代译码的比特交织编码调制(BICM-ID) 衰落信道 |
Bit-interleaved coded modulation for FM IBOC broadcasting |
| |
| Feng Yunfei,Li Jianping,Dong Yue. Bit-interleaved coded modulation for FM IBOC broadcasting[J]. High Technology Letters, 2010, 20(1). DOI: 10.3772/j.issn.1002-0470.2010.01.009 |
| |
| Authors: | Feng Yunfei Li Jianping Dong Yue |
| |
| Abstract: | A bit-interleaved coded modulation (BICM) scheme was proposed for FM in-band on-channel (IBOC) digital audio broadcasting (DAB) systems, which combines complementary punctured-pair convolutional codes (CPPC) and BICM with iterative decoding (BICM-ID). The CPPC can resist the first adjacent-channel interference, the noise and fading. Meanwhile, by using the BICM-ID algorithm, the scheme can make FM IBOC broadcasting systems yield a better coding gain over Rayleigh fading channels without bandwidth expansion. The simulation results show that the proposed scheme can effectively improve the receiving performance of an FM IBOC system. |
| |
| Keywords: | FM IBOC DAB FM IBOC DAB in-band on-channel (IBOC) first adjacent-channel interference complementary punctured-pair convolutional codes (CPPC) bit-interleaved coded modulation with iterative decoding (BICM-ID) fading channels |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
