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对光通信系统中单级型级联码和交织型级联码的纠错性能进行理论研究与仿真分析后表明:交织型级联码的纠错性能与单级型级联码基本相当,与经典的RS(255,239)码型相比,其净编码增益(NCG)大得多,纠错性能有很大的提升;交织型级联码的冗余度比单级型级联码要低得多,并且还具有比单级型级联码更强的纠突发差错能力。因而交织型级联码更适合光通信系统的实际应用要求。
The theoretical research and simulation analysis on the error correction performance of single-level concatenated code and interleaved concatenated code in optical communication system show that the error correction performance of interleaved concatenated code is almost the same as that of single-level concatenated code, and Compared with the classical RS (255,239) pattern, the NCG is much larger and the error correction performance is greatly improved. The redundancy of the interleaved concatenated code is lower than that of the single-level concatenated code More, and also has stronger than single-level cascading code error correction error-prone capabilities. Therefore, interleaved code is more suitable for the actual application of optical communication system requirements.