欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
多基站数字阵雷达面，临信号远距传输、时序同步与信号分集等技术难题。本文针对MsDAR构建了具有较强适用性的光纤同步系统。该系统采用信号分级同步策略对时序信号逐级同步，精度可达纳秒量级。采用多级复用技术显著提高单纤信道传输容量以解决MSDAR信号分集问题。本文分析了影响光纤传输同步性的诸方面因素，结合数字阵雷达原理建立了信号同步性对雷达性能影响的关系模型。详细分析了同步性对雷达波束指向影响。结果表明光纤同步系统若满足MsDAR系统需求，须折中考虑系统工作频率、带宽、通道等系统参数，定量的结果可由模型给出。
英文摘要：
Multi-station digital array radar （MSDAR） confronts with several puzzles such as distant transmission, timing synchronization, signal distribution and collection. A universal fi- bre-optic transmission synchronization and signal diversity system is architected, which ex- ploits hierarchical synchronization approaches to achieve precise synchronization of nanosecond magnitude. Hierarchical channel multiplex techniques are designed to promote the fibre-optic channel capacity to address the signal diversity difficulties of MSDAR. Based on the analysis of effects on synchronization and the characteristics of digital array radar （DAR）, the mathematic models of the relationship between synchronization and radar performances are built. Accord- ing to the models, the beam pointing errors are estimated. The theoretical analysis and simula- tion results indicate that the fibre-optic transmission synchronization system can satisfy high frequency MSDAR, but with the increase of operation frequency and bandwidth, the effects will be more serious and the quantitative results can be calculated on the models.
同期刊论文项目
同项目期刊论文
pattern synthesis for opportunistic array radar using least square fitness estimation-genetic algori
Noncircular-PARAFAC for 2D-DOA estimation of noncircular signals in arbitrarily spaced acoustic vect
期刊信息
位置：