摘要
针对FH-OFDM系统对同步异常敏感的特点提出一种极大似然同步算法,该算法能够快速获取时间和频率同步信息,估计精度高,并且节省频带资源,有效地解决了FH-OFDM传输中的同步问题。计算机仿真表明其性能满足系统要求。
A Maximum Likelihood （ML） synchronous algorithm is proposed based on the character of FH-OFDM （Frequency Hopping-Orthogonal Frequency Division Multiplexing） that it is extremely sensitive to synchronization. The algorithm can acquire the synchronous information on time and frequency in a short time with high estimation accuracy, and save the space of frequency band, so it effectively solves the problem of synchronization in FH-OFDM transmitter. Simulation results show that its performance can meet the system＇s requirement.
出处
《电子科技》
2006年第6期18-21,共4页
Electronic Science and Technology
关键词
跳频
正交频分复用
同步
Frequency hopping
OFDM
synchronization
