一种用于海上渔网的跟踪系统  

A Tracing System for Fishing nets

作　　者：郑正奇[1] 周群[1] 康伟[1] 沈秀英[1] 殷杰羿[1] 

机构地区：[1]华东师范大学电子科学技术系,上海200062

出　　处：《华东师范大学学报（自然科学版）》2000年第4期45-49,共5页Journal of East China Normal University(Natural Science)

摘　　要：目标源设置于海面渔网上 ,向周围海域全向辐射f =2 .4 5GHz的微波信号 ,跟踪搜索系统位于船上 ,通过转动天线接收目标源发出的信号 ,可探测半径为 10km范围内渔网的方向和位置。系统中采用了锁相技术和地址编码 ,并采用间隙工作方式 ,使得本系统工作性能稳定 ,目标源一次充电可连续工作 10天以上。A tracing system placed on fishing boat to search for active target which placed on fishing net floating over sea. The target isotropy radiates f=2.45GHz microwave coding signal. Tracing system detect the target's distance and direction through the amplitude of received coding signal and the direction of receive antenna. The effective range within 10km. Phase lock oscillator, address coding and intermission mode are taken to stabilize the system and to promise the target's working period longer than 10 days after its source charged.

关 键 词：雷达 锁相 地址编码 间隙工作 海上渔网 跟踪搜索系统 接收天线 微波信号 目标源 

分 类 号：TN953.2[电子电信—信号与信息处理]