Signal emulation and character research of millimeter wave passive detection

In this paper, the output signals generated when the 8 mm passive probe detects the cement road in a special mode are studied. We derive the expression of the antenna temperature in the case of the beam center of radiometer antenna is not on the axis, simulate the output signal by using the expression and discuss the ways of computer emulation. The results of the emulation are given and the characters of the signals are analyzed.