一种高效的宽带数字信道化接收方法

宽带雷达对抗侦察数字接收机具有较宽的瞬时频率覆盖特性和较高的截获概率,并能处理同时到达的多个信号。多相滤波信道化接收机是实现宽带接收的一种方法,其抽取运算在滤波运算之前,运算量小,输出速率低,便于后续处理,是一种高效结构。给出了多相滤波信道化数字接收机的基本原理和实现方法,采用重叠一半多相滤波信道化数字接收机能够有效消除接收盲区,实现全概率接收并消除虚假输出,通过仿真试验证明了其有效性。

An Efficient Method of Wide BandDigital Channelization Receiving

Wide frequency spectrum can be received and high probability of intercepting can be got and the simultaneously attend signals can be processed by wide band radar EW reconnaissance digital receiver. The efficient architecture is to be built using a poly-phase filter Channelization implementation, by decimating the date prior to filtering, the flow-up processing can be realized easily because it's low operations amounts and low output data rate. The principle and the method of implementation are presented in this paper, the receiving dead zoon can be eliminated efficiently by half overlap ployphase filtering channelization receiver, full probability receiving can be realized and eliminate the false outputs, the computer simulation show the validity of it.