摘要
雷达对抗已成为雷达领域的重要课题,雷达的抗干扰性能愈发重要。该文提出了跟踪雷达的高重频随机跳频体制,该体制能消除"二次"回波,并具有较高的距离和速度分辨力。该文分析了高重频随机跳频跟踪雷达对抗欺骗干扰的性能,得出的结论是:由于发射频点随机跳变,对该雷达体制有效地欺骗干扰必须是转发式的;该雷达体制能对抗转发延迟大于脉宽、或者干扰信号功率不足以掩盖真实回波的转发式欺骗干扰。计算机仿真结果符合上述分析结果。
Radar countermeasures have become an important issue with the anti-jamming methods needed in radar systems. This paper describes a high pulse repetition frequency （PRF） tracking radar with random frequency hopping which eliminates multiple repeat echoes with both long range ability and good velocity resolution. Simulations show that the system is able to counter deceptive jamming methods with the hopping transmission frequency, effective deceptive jamming of this radar system must come from a repeater. The radar can then reject any repeater generated deceptive jamming with repeater delays longer than the transmitted pulse width or with powers that can not to cover the target echo.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第8期1135-1138,1143,共5页
Journal of Tsinghua University(Science and Technology)
关键词
抗干扰体制
频率捷变
跟踪雷达
高重频
electronic counter-counter （ECCM）
frequency agility
tracking radar
high pulse repetition frequency （PRF）
