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is read at the rising edge of the pulse, but the distance of the point where the amplitude exceeds 80% of the peak and
the point where the power exceeds the peak of -2 dB is taken as the measurement distance of the IM radar. As an
example, the P (d) graph of the target at 5.5 m is shown below. When you click the -2 dB point of the peak, the
measured distance is displayed at the bottom of the screen.
P (d) graph display of 5.5 m target
(Since the Distance scale is set to -2 m ~, the transmission leakage is visible to 0 m.)
③Drag the mouse in the image display area and place the target within the rectangular area.
④Finally, clicking the "Calculate RCS" button in the "Target" frame displays the calculated values in the "Total
Power", "RCS result" field, "Peak Power" and "RCS result" fields.
Measurement example of target with unknown RCS value (actually CR 10 dBsm) with distance (5.5 m) different from
REF measurement distance. Even if the distance changes, the RCS measurement results almost agree.
[Reference] The following figure shows the signal intensity distribution in the horizontal direction in which the tilt + 3.5
°
distance designation is dragged to 5.7 m in the above figure and P (x) graph is displayed.
