| 摘要 |
FIELD: radio engineering, applicable in devices of subsurface radar reconnaissance. ^ SUBSTANCE: the method consists in the fact that signal A(t) is formed, which represents a periodic train of superwide-band pulses, the transmitting antenna is excited by signal A(t), linearly polarized signal A(t) is radiated by the transmitting antenna, reflected signal B(t) is received by the receiving antenna and a decision is taken on detection of a non-linear scatterer at the preset depth as a result of control of the received signal, the transmitting antenna is additionally is excited by signal A(T-tau), formed from signal A(t) by delaying the latter for time tau, signal A(t-tau) is radiated with linear polarization opposite the polarization of signal A(t), received signal B(t) is delayed by time tau, received signal B(t) is summed up with delayed copy B(t-tau), and summary signal B(t)+B(t-tau) is used as a controlled signal. ^ EFFECT: enhanced efficiency of detection and identification of non-linear scatterers, with the possibility of determination of the depth of its occurrence remaining unchanged. ^ 4 dwg |
