基于超长相干OFDM技术的时间同步系统研究

Research on Time Synchronization System Based on Ultra-Long Coherent OFDM

摘要:

为提高无线通信的多信道通信同步性和数据传输的准确度，进一步解决在复杂环境中，飞机、舰船上无线通信系统信号容易失真的问题，在对比分析现有时间同步方案的基础上，对正交频分复用技术进行了研究，创新性提出了超长相干OFDM技术，设计出一种分布式皮秒级高精度时间同步系统，经试验测试该系统能够提高复杂电磁环境中多信道通信的抗干扰性能和时间同步精度，并且实现了时间同步与数据传输的一体化，进一步确保数据传输的可靠性。

Abstract:

In order to improve the synchronization of multichannel communication and the accuracy of data transmission in wireless communication, and further solve the problem that the signal of wireless communication system on aircraft and ships is easy to be distorted in complex environment, orthogonal frequency division multiplexing technology is studied on the basis of comparing and analyzing the existing time synchronization schemes, and an innovative ultra-long coherence is proposed Based on OFDM technology, a distributed picosecond high precision time synchronization system is designed, which can not only improve the anti-interference performance and time synchronization accuracy of multi-channel communication in complex electromagnetic environment, but also realize the integration of time synchronization and data transmission, and further ensure the reliability of data transmission.