Research Initiation: Coding Algorithms for Correcting CycleSlips and Errors

最近的研究表明，一些数字数据网络错误的主要原因是由于时钟恢复过程中发生的周期跳变，而不是探测器做出的错误决定。传统的代码不能容忍周期滑移，并且会使问题变得更糟。这个项目的目标是开发新的和有效的编码算法，可以纠正滑移。此外，所研究的编码算法将具有有限的纠错能力，从而可以纠正偶尔的错误，从而使所得到的算法对错误不敏感。研究有两个不同的方向。先前在该领域的研究已经导致了一些相当有效的代码的发展，这些代码可以容忍码字之间边界的循环滑移，但不能容忍其他地方。该研究考察了扩展或修改这些代码的方法，以便它们可以纠正码字中任何地方出现的循环滑移。另一个研究方向是研究新的编码方法来校正周跳，包括源编码和卷积编码结构

Recent research has shown that the principal cause of errors on some digital data networks is due to cycle slips that occur during clock recovery, instead of erroneous decisions made at the detector. Conventional codes are unable to tolerate cycle slips, and can make the problem worse. The objectives of this project are to develop new and efficient coding algorithms that can correct slips. In addition, the coding algorithms studied will have a limited error correction capability, so that the occasional error can be corrected and so that the resulting algorithms are not sensitive to errors. The research has two different directions. Previous research in the area has led to the development of some fairly efficient codes that can tolerate cycle slips at the boundary between codewords, but nowhere else. The research examines ways to extend or modify these codes so that they can correct cycle slips that occur anywhere in the codeword. Another direction for the research is the study of novel coding methods for correcting cycle slips, including source coding and convolutional code structures.***//