雷达科学与技术
雷達科學與技術
뢰체과학여기술
RADAR SCIENCE AND TECHNOLOGY
2013年
6期
611-616
,共6页
肖永生%周建江%胡中华
肖永生%週建江%鬍中華
초영생%주건강%호중화
机载雷达%射频隐身%正交频分复用(OFDM)%峰均功率比(PAPR)%数字信道化接收机
機載雷達%射頻隱身%正交頻分複用(OFDM)%峰均功率比(PAPR)%數字信道化接收機
궤재뢰체%사빈은신%정교빈분복용(OFDM)%봉균공솔비(PAPR)%수자신도화접수궤
airborne radar%RF stealth%orthogonal frequency division multiplexing(OFDM)%peak-to-average power ratio(PAPR)%digital channelized receiver
飞机必须具有良好的射频隐身性能,以降低无源探测系统对飞机的探测距离及识别效果,从而使飞机及其机载雷达等电子设备减少被截获、被干扰甚至被摧毁的可能性。提出了机载雷达射频隐身信号的设计原则,根据此原则设计和研究了基于伪随机码调制与正交频分复用技术的雷达信号。所设计的雷达信号具有较低的峰均功率比,通过基于数字信道化接收机无源探测系统的仿真实验,验证了该雷达信号相对常用的线性调频雷达信号具有更好的射频隐身性能。
飛機必鬚具有良好的射頻隱身性能,以降低無源探測繫統對飛機的探測距離及識彆效果,從而使飛機及其機載雷達等電子設備減少被截穫、被榦擾甚至被摧燬的可能性。提齣瞭機載雷達射頻隱身信號的設計原則,根據此原則設計和研究瞭基于偽隨機碼調製與正交頻分複用技術的雷達信號。所設計的雷達信號具有較低的峰均功率比,通過基于數字信道化接收機無源探測繫統的倣真實驗,驗證瞭該雷達信號相對常用的線性調頻雷達信號具有更好的射頻隱身性能。
비궤필수구유량호적사빈은신성능,이강저무원탐측계통대비궤적탐측거리급식별효과,종이사비궤급기궤재뢰체등전자설비감소피절획、피간우심지피최훼적가능성。제출료궤재뢰체사빈은신신호적설계원칙,근거차원칙설계화연구료기우위수궤마조제여정교빈분복용기술적뢰체신호。소설계적뢰체신호구유교저적봉균공솔비,통과기우수자신도화접수궤무원탐측계통적방진실험,험증료해뢰체신호상대상용적선성조빈뢰체신호구유경호적사빈은신성능。
Aircraft should have RF stealth performance which can reduce the detection range and identification effect of passive detection system aiming to the aircraft,so that the aircraft and airborne electronic equipment can decease the probability of being intercepted or even destroyed.The design principle of RF stealth signal of the airborne radar is presented.According to this principle,the radar signal based on the pseudo-random code modulation and orthogonal frequency division multiplexing(OFDM)technique is designed and studied. The radar signal has a lower peak-to-average power ratio(PAPR),and the RF stealth performance of the ra-dar signal is verified to be better than the common linear frequency modulated radar signal through simulation experiment based on the passive detection system adopting the digital channelized receiver.