[关键词]
[摘要]
电子战装备的无源探测对作战飞机的生存构成严重威胁。地面动目标指示作为机载雷达的重要功能,亟需提升其抗截获能力。结合双基雷达低截获特征,提出了基于截获因子评价的双基机载雷达地面动目标指示低截获探测设计方法。针对双基机载雷达地面动目标指示,简要分析了距离分辨率、最小可检测速度,推导了截获因子表达式,在满足探测性能前提下,设计了基于截获因子评价的低截获探测方法。仿真结果表明,所提出的方法能明显提升机载火控雷达地面动目标指示功能的抗截获性能。
[Key word]
[Abstract]
The passive detection of electronic warfare equipment threatens the survivability of the operational aircraft seriously.Ground moving target indication (GMTI) is an important function for the airborne radar, which desiderates to enhance the capability of anti-interception. Combining the low probability of intercept (LPI) characteristic of bistatic radar, the LPI detection design method for the bistatic airborne radar GMTI based on intercept factor evaluation is proposed to improve the anti-interception performance.In allusion to the bistatic airborne radar GMTI, the range resolution and the minimum detectable velocity are analyzed,and the expression of intercept factor is derived. Then, on the premise of the detection performance, the LPI detection method based on intercept factor evaluation is designed. Simulation results show that the proposed method in this paper can obviously improve the anti-interception performance of GMTI function of the airborne fire control radar.
[中图分类号]
TN957.51
[基金项目]
中国博士后科学基金资助项目(No.2019M661962)
