作　　者： ; ; ;

机构地区： 中国人民解放军总参谋部

出　　处： 《计算机测量与控制》 2010年第5期1122-1124,共3页

摘　　要： 根据鱼雷电子系统发展的需求,提出了基于交换式以太网的鱼雷电子系统一体化结构。在一体化结构的框架下,将声自导发射波束形成和基阵接收波束形成作为功能独立的智能化执行器和传感器。在声自导发射波束形成模块,采用DDS方法生成基准信号,并通过延时滤波算法精确控制通道间的相位关系,从而控制声自导发射波束的指向。在基阵接收波束形成模块中,提出了"二次正交采样"的方法,实现高频窄带阵列信号的实时处理,并在复包络的基础上完成接收波束形成。最后,验证了发射波束形成和接收波束形成的正确性。 Integrated architecture of torpedo electronic system based on switched Ethernet is put forward because of the demands. Tor- pedo acoustic homing transmitted beam forming and received beam forming work as intellectualized node with the integrated architecture. The fiducial signal is created by DDS method in the transmitted module, phase difference with fiducial signal is computed by time--delay filter method and the direction of transmitted beam is accurately controlled by the phase difference. ＂Twice quadrature demodulation＂ algorithm is presented to reduce computation and communication, and beam forming is realized by the result. Lastly, the correctness of transmitted beam and received beam is validated by the experimentation.

关 键 词： 一体化结构 发射波束形成 正交采样 接收波束形成

领　　域： [电子电信] [电子电信]