摘要
DRFM能够对接收的信号进行高保真的复制,使其转发的信号与接收信号相参,但由于反相器对频率比较敏感,又受DRFM硬件技术的局限,使双点源相干干扰一直处于理论层面,未能在工程上实现。针对双点源相干干扰进行了理论分析,并对其进行了计算机仿真。仿真结果验证了双点源相干干扰对单脉冲雷达方位进行干扰的有效性。根据当今的A/D、D/A、移相器等硬件技术的发展水平,针对双点源相干干扰提出了两种可行的实现方式。一种是在模拟端对其信号进行反相来实现的,另一种是在数字端对其信号进行反相来实现的。
DRFM can make a high-fidelity copy of received signals and assure the retransmitted signals and the received ones coherent.However,due to the sensitiveness of phase inverters to frequency and the restriction of DRFM hardware technologies,dual-source coherent jamming has been researched in theory and not realized in practice.Dual-source coherent jamming theory is analysed and computer simulated and the results of simulations verify the effectiveness of dual-source coherent jamming to monopulse radars.In the paper,two feasible ways of realizing the dual-source coherent jamming are proposed according to the development of A/D,D/A,phase shifter,etc.One is by inversing signals＇ phase at the analog port and the other is at the digital port.
出处
《国外电子测量技术》
2011年第9期33-35,43,共4页
Foreign Electronic Measurement Technology
关键词
双点源
相干干扰
单脉冲雷达
dual-source
coherent interference
monopulse radar
