火控雷达技术
火控雷達技術
화공뢰체기술
FIRE CONTROL RADAR TECHNOLOGY
2012年
4期
62-67
,共6页
全球导航卫星系统%抗干扰%FPGA
全毬導航衛星繫統%抗榦擾%FPGA
전구도항위성계통%항간우%FPGA
global navigation satellite system(GNSS)%anti-jamming%FPGA
由于到达地面的GNSS信号很微弱,导致GNSS接收机极易受到干扰。特别是在作战时,敌方发射的强干扰对GNSS接收机影响很大,如果不施以抗干扰措施,接收机将无法正常工作。本文提出了频域——空域联合抗干扰的技术方案,仿真结果表明频域——空域联合抗干扰的算法比频域抗干扰算法和空域抗干扰算法性能更优越,在FPGA中用Verilog语言实现了该联合域抗干扰的算法。
由于到達地麵的GNSS信號很微弱,導緻GNSS接收機極易受到榦擾。特彆是在作戰時,敵方髮射的彊榦擾對GNSS接收機影響很大,如果不施以抗榦擾措施,接收機將無法正常工作。本文提齣瞭頻域——空域聯閤抗榦擾的技術方案,倣真結果錶明頻域——空域聯閤抗榦擾的算法比頻域抗榦擾算法和空域抗榦擾算法性能更優越,在FPGA中用Verilog語言實現瞭該聯閤域抗榦擾的算法。
유우도체지면적GNSS신호흔미약,도치GNSS접수궤겁역수도간우。특별시재작전시,활방발사적강간우대GNSS접수궤영향흔대,여과불시이항간우조시,접수궤장무법정상공작。본문제출료빈역——공역연합항간우적기술방안,방진결과표명빈역——공역연합항간우적산법비빈역항간우산법화공역항간우산법성능경우월,재FPGA중용Verilog어언실현료해연합역항간우적산법。
Due to the signal of GNSS arriving at the ous kinds of interference. Especially in the war, the surface is so weak that the GNSS receiver is vulnerable to vari- high power interference transmitted by the enemy would impact the GNSS receiver severely, and the GNSS receiver cannot work normally if we do not use any ant-jamming tech- nique. An anti-jamming scheme uniting frequency domain and space domain is proposed. The simulation result demonstrates that anti-jamming algorithm uniting frequency domain and space domain is better than frequency domain and space domain anti-jamming algorithms, and it can be implemented on FPGA by using Verilog language.