HPRF-PD体制引信的回波仿真与多普勒频率提取

引信要依据弹目交会状态精确控制炸点,就需要从目标回波中获取信息。利用多普勒频率控制起爆就是方法之一。文中采用简化的目标多点散射模型对引信接收的回波信号进行数字仿真,并基于HPRF波形保证目标多普勒频率不模糊的检测原理,对多普勒信号采用FFT处理法进行频谱处理,在频域提取有效多普勒频率。仿真最终结果给出了多普勒频率随时间变化的曲线。

Echo Simulation and Doppler Shift Extraction of HPRF-PD Fuze

Fuze must obtain information from the echo of target if it wants to accurately control the explosive spot according as the target-missile approaching status.Making use of Doppler shift to control explosion is one method.In this article,the fuze received echo signal is digitally simulated using simplified multipoint scattering model,And based on the principle that HPRF waveform assure the recievered Doppler shift be no-ambiguously detected,spectral of PD signal is processed by means of FFT.The final result provide the curve of main frequency changing in time.