对海上目标全天时全天候的准确态势感知是维护国家海洋权益和保障海上安全的关键。针对现有无线电侦测、光电探测等无源探测技术在探测目标类型和多目标探测能力方面和有源雷达在抗干扰和隐蔽性方面的局限,以海面上的各种船舶为目标,开展了基于脉冲雷达信号的海上目标无源感知技术试验研究,给出了无源态势感知系统探测目标的基本原理,结合外场实测数据完成了直达波脉冲信号参数的测量、天线扫描特性分析和数据预处理、脉冲积累与动目标显示处理、恒虚警检测和显示校正等方面的问题,并利用船舶自动识别系统信息对试验处理结果进行了检验分析,验证了基于脉冲雷达信号的海上目标无源态势感知技术的可行性和有效性。

Accurate situational awareness of maritime targets in 24/7 is crucial for safeguarding national maritime rights and ensuring maritime safety. In response to the limitations of existing passive detection technologies such as wireless detection and photoelectric detection in detecting target types and multi-target detection capabilities, as well as the anti-interference and concealment capabilities of active radar, experimental research on passive perception technology for sea targets based on pulse radar signals was conducted, targeting various ships on the sea surface. The basic principle of passive situation perception system for targets detection was provided. The measurement of direct wave pulse signal parameters, analysis of antenna scanning characteristics and data pre-processing, pulse accumulation and moving target indication processing, constant false-alarm rate detection and display correction were completed based on field measurement data. The trial results were verified and analyzed using ship automatic identification system information, which verified the feasibility and effectiveness of maritime targets detection by passive situation perception technology based on non-cooperative pulse radar signals.

TN971

国家重点研发计划资助项目(2021YFA0715202) ;国家自然科学基金资助项目(62293544,62388102);山东省优秀青年创新团队资助项目(2021KJ005)