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Optimizing the Reception of Signals Emitted by Ultrashort-Pulse Antennas

机译:优化超短脉冲天线发射信号的接收

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In the case of irradiating an object to be identified by ultrashort-pulse antennas, the goal of the most efficient reception of reflected signals arises. In this case, it is necessary to provide the most consistent time diagrams for both the signal being reflected from the object and the signal at the input of a receiver. It is well known that the characteristics of a receiver can be described in terms of a linear stationary dynamic transformation linking input and output signals. Therefore, we need to find the functional description of the corresponding pulsed transition function that ensures the minimal divergence of the signal being reflected from that at the receiver output. In addition, it is desirable to provide operation conditions for the receiver that correspond to the minimization of residual radiation. This radiation arises by virtue of both a certain time stretching of a signal emitted by the antenna and dynamic distortions occurring while the signal propagates through the medium prior to reaching the object, as well as after the reflection. To this aim, it is rather reasonable to apply a supplementary correcting signal to the input of the receiver along with the signal reflected from the object under study. This correcting signal provides partially or complete quenching of a signal at the receiver output at a prescribed moment of time.
机译:在通过超短脉冲天线照射待识别的物体的情况下,出现了最有效地接收反射信号的目标。在这种情况下,有必要为从物体反射的信号和在接收机输入端的信号提供最一致的时序图。众所周知,可以根据链接输入和输出信号的线性固定动态变换来描述接收机的特性。因此,我们需要找到相应的脉冲跃迁函数的功能描述,以确保从接收器输出处反射的信号具有最小的发散度。另外,期望为接收器提供与残留辐射的最小化相对应的操作条件。这种辐射的产生是由于天线发射的信号经过一定的时间拉伸,以及信号在到达物体之前以及反射之后通过介质传播时发生的动态畸变。为此目的,将附加的校正信号与从被研究物体反射的信号一起施加到接收机的输入是相当合理的。该校正信号在规定的时间在接收器输出处提供信号的部分或全部猝灭。

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