摘要
通过对乌兰韦伯测向系统的研究,将其用圆天线阵等效成一排直线阵进行测向的传统方法改变为等效成两排直线阵,这样可以在测量方位角的同时,利用信号到达两排直线阵的时间差实现仰角估计。由于DSP实现FFT具有较强优势,因此将方位角的计算和时延估计算法交给DSP来实现,通过测试证明该实验系统可以实现乌兰韦伯体制的二维测向,为下一步的单站定位奠定基础。
Based on the study of Wullenweber DF system, the circle antenna is made to equivalent two line arrays instead of equivalent to one. In this way, when measuring the direction, the elevation can be computed by estimating the time delay between the two signals which have reached the two line arrays. As DSP has fairly strong advantage inFFTcomputing, both direction and time delay computation are delivered toDSP. The test result proves that this testing system can realize Wullenweber system 2-D DF, thus paving the way for Single Station Location.
出处
《通信技术》
2008年第8期63-65,共3页
Communications Technology
