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.
出处
《华东师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2000年第4期45-49,共5页
Journal of East China Normal University(Natural Science)