太赫兹科学与电子信息学报Issue(3)：391-396,6.DOI:10.11805/TKYDA201403.0391
一种慢跳频系统频率跳变时刻同步算法
A frequency hopping signals hop timing synchronization algorithm for Slow Frequency Hopping system
张伟 1周劼 2叶江峰 3蒋鸿宇3
作者信息
- 1. 中国工程物理研究院 研究生部，四川 绵阳 621999
- 2. 中国工程物理研究院 电子工程研究所，四川 绵阳 621999
- 3. 中国工程物理研究院 电子工程研究所，四川 绵阳 621999
- 折叠
摘要
Abstract
A frequency hopping signals hop timing synchronization algorithm for Slow Frequency Hopping(SFH) system is proposed. Considering that the slow frequency hopping system has more than one symbol in a single hop, non-linear transform is used to generate the spectrum lines. Considering the energy in each hop is constant, a single hop is equally divided into two segments, and the energy difference of the spectrum lines between these segments is used to decide whether the hop timing is early or late. Then, a feedback loop is used to adjust the hop timing and make the system be synchronized. The hop timing performance is verified by computer simulation in a typical SFH/DPSK blind-receiving environment. The synchronization error is about 10-3 while Eb/N0 is more than 16 dB.关键词
跳频信号/同步/非线性变换/反馈环路Key words
frequency hopping signal/synchronization/non-linear transform/feedback loop分类
信息技术与安全科学引用本文复制引用
张伟,周劼,叶江峰,蒋鸿宇..一种慢跳频系统频率跳变时刻同步算法[J].太赫兹科学与电子信息学报,2014,(3):391-396,6.
