有源相控阵雷达回波生成方法研究

有源相控阵雷达回波信号生成是进行相控阵雷达仿真的关键内容,为避免在仿真雷达有源天线特性时每个通道射频级回波信号运算量大的问题,提出基于中频的有源相控阵天线通道回波快速生成方法,在降低运算量的同时保持了相控阵接收通道回波之间的固有幅度、相位关系,采用变换法来产生通道噪声,使通道回波生成耗时控制在毫秒量级及系统仿真实现准实时。

A method of generating echoes of active phased array radars

The echo generation is the key element of the simulation of phased array radars.A method of rapidly generating IF echo signals in the reception channel of an active phased array antenna is presented to avoid a large amount of calculation for RF echoes when the simulation of the characteristics of active antennas is done.Such method not only reduces the amount of calculation,but also maintains the inherent amplitude and the phase relationship among echoes in phased array reception channel.Besides,the channel noise is generated through the transform method to make the echo generation be completed in milliseconds and hence the simulation be accomplished quasi-real-timely.