摘要
由于采用单一接收天线的卫星导航接收终端抗干扰能力极弱,提出了一种自适应天线方案,包括多阵元微带天线阵列和功率倒置算法。以北斗二代B3频点为例,设计了四阵元微带天线阵列、射频前端、基带处理单元和空域功率倒置算法。仿真和实物测试结果表明,所提出的抗干扰方法性能优良,在同时存在3个宽带干扰,且干信比大于70d B时,导航终端仍然能够正常定位。
Due to a rather weak anti-jamming capability of the satellite navigation terminals using a single antenna, a new self-adaptive antenna proposal, including a microstrip antenna array and a power inversion algorithm, etc., is suggested in detail. As an example of the B3 frequency band of the COMPASS system, a designing scheme on a 4-element array, RF part, basic band processing part and space power inversion algorithm is provided. Meanwhile, the simulation and test results demonstrate that the suggested smart antenna can work effectively illuminated by 3 broadband jamming sources 70 d B stronger than the COMPASS navigation signals.
出处
《微波学报》
CSCD
北大核心
2014年第S1期338-340,共3页
Journal of Microwaves
关键词
自适应天线
功率倒置算法
卫星导航接收终端
self-adaptive antenna
power-inversion algorithm
satellite navigation terminal
