CAJ | 학술논문

功率反演算法可以通过实时调整天线阵列的权值,获得对不同方向的干扰信号高的抑制比,在强干扰情况下获取微弱的有用信号.本文进行了功率反演算法FPGA实现的仿真分析,基于四元天线阵研究了阵列的抗干扰性能和计算步长、仿真时间等因素对算法收敛和性能的影响,结果表明在对抗强干扰时抗干扰效果显著,能显著提高信干比,且算法易于工程实现.
공솔반연산법가이통과실시조정천선진렬적권치,획득대불동방향적간우신호고적억제비,재강간우정황하획취미약적유용신호.본문진행료공솔반연산법FPGA실현적방진분석,기우사원천선진연구료진렬적항간우성능화계산보장、방진시간등인소대산법수렴화성능적영향,결과표명재대항강간우시항간우효과현저,능현저제고신간비,차산법역우공정실현.
@@@@The algorithm based on the power inversion (PI) is capable of adjusting the weights of the antenna array in real time to respond and improve received signals coming from the desired directions and at the same time to highly suppress the jammers coming from the other directions , to gain the weak useful signs in the strong jammers.the FPGA is designed and based on 4-arrays ,the performance of the algo-rithm and the influence of the step length and calculation time is studied .It indicates that this structure can get a better effect and better signal-to-jam ratio(SJR ) in restraining the interference, and the power inversion algorithm is implemented simply and easily .