直达信号 meaning in Chinese
direct path signal
direct signal
Examples
- First of all , three de - correlation methods are introduced for the purpose of deducing the correlation between the direct signal and the reflected one . then one of them is combined with classical music algorithm to do doa estimation
为了减小直达信号与反射信号间的相关性,先介绍了三种去相关的方法,再采用其中一种方法结合经典的music算法来做doa估计。 - At this moment , both the direct signal and the reflected one impinge into the array , and make the amplitude and phase of the echo change , which cannot be separated from the direct one , thus cause server errors of elevation ’ s estimation , even the failure of tracking
此时直达信号与反射信号同时进入天线,造成回波幅度与相位的变化,并且这种变化不能从直达信号中分离出来,从而造成目标仰角估计的严重误差,甚至引起跟踪的失效。 - The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place . the system takes tv sound fm signal from tv satation signal . the power rate of tv station signal to sound signal is ten to one . in the case of submerged by mussy weave and machine ' s hot noise , dispersed target signal is feeble
系统采用电台的电视伴音调频信号，其中电台信号与伴音信号功率之比基本为10 ： 1 ，并且目标散射信号较弱，一般情况下淹没在杂波和机器热噪声之下，采用常规的脉冲检测方法很难对远距离的目标进行检测，而以电台直达信号作为参考与目标回波信号进行相关检测；系统中信号的相关处理会产生旁瓣，而强目标的旁瓣会影响附近的弱目标检测。