阻塞式干扰 meaning in English
barrage jamming
Examples
- We analyzed the anti - jam and band inside anti - interfere performance of the system , and the low probability intercept ( lpi ) of the traditional direct sequence spread spectrum ( dsss ) modulations in the uav platform ' s applications . so a new modulation technique using a multi - level pseudo noise ( pn ) code has been presented . the new multi - level pn code is built from a high speed pn code through a low passed filter ( lpf )
分析了系统抗阻塞式干扰和抗带内频带干扰的性能，以及常规bpsk qpsk - dsss调制在无人机通信中存在的安全隐患，提出了一种用多电平pn码进行扩频调制的方法：采用高速pn码，经过低通滤波器，产生多电平pn码进行直序扩频调制，能在低信噪比情况下有效抵抗平方率检测器对系统载波的检测。 - The fourth section studies the modeling of broad band blocking jamming and coherent jamming , and analyses the principal of coherent jamming and the factors of influencing the jamming effect is provided . the performance of pulse doppler radar seeker is simulated when certain jamming methods is exerted . a pulse doppler radar seeker simulation system is established , by using the simulation system the performance of pulse doppler radar seeker is evaluated when jammed
第四部分研究了宽带阻塞式干扰和相干干扰的建模问题，并分析了相干干扰作用原理，给出了影响干扰效果的主要因素及次要因素，仿真了脉冲多普勒雷达导引头在宽带噪声干扰情况下的截获和跟踪性能，仿真了相干干扰对脉冲多普勒雷达导引头跟踪性能的干扰效果。