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input (Reference RCS) It is reflected in the system as a reference.
(Note: The value obtained here is saved in the measuring device (personal computer software) until new reference is
obtained.)
For confirmation, enter the same distance (m) as the reference in the "Distance" field of the "Target" frame with the
distance range and rectangle range intact and "RCS calculation (Calculate RCS) "button is clicked, the calculated values
are displayed in the" total reception power (Total Power) "field, the" peak power value (Peak Power) "field and the"
RCS value result (RCS Result) " Confirm that the RCS value entered in the "Reference value (RCS Reference)" frame
and the measured and calculated RCS value of the "Target" frame almost agree.
In the case of a point target like CR, both Total RCS value and Peak RCS value almost agree. (See the figure below)
（２）Measurement of RCS value unknown targets and RCS calculation
Measure the reflected reception power of the measurement object whose RCS value is not known and calculate the
RCS based on the measurement result and the RCS reference stored in (1). (Caution) Please keep the unknown target
at the same distance as the REF measurement distance, preferably as much as possible from the REF measurement
time without measuring time. (When distance is different, distance correction of RCS value by radar equation is performed
and measurement is done, but please include including some error when REF measurement environment and target
measurement environment
·
time are different.)
In the same way as (1) below
①Estimate the distance between the radar and the unknown target, set the measurement range in the distance
direction (Distance Range) slightly longer in consideration of the transmit pulse width (75 cm) of the radar, and then
acquire the 2D imaging data. Please click the Recalculate button when changing distance range.
②If the REF measurement distance is different from the target measurement distance, measure the distance of the
target or click the cell at the center of the target to be measured in the image display area to display the P (d) graph
and set the target distance to Confirm and change "Distance (m)" in "Target" frame. The distance of the pulse radar
Click to display the calculation
results in "Total Power", "Peak
Power" and "RCS Result".
The maximum peak value of the measured
received power value is displayed.
The RCS value calculated from the
maximum value of the phase
synthesized received power value of
the same distance is displayed.
The RCS values calculated from the
maximum peak value are displayed.
Click here to reflect the
reference.
Enter the RCS value (dBsm) for
the reference here.
The maximum value of the received power value
which is phase-synthesized at the same distance
and averaged at the selected range is displayed.
The maximum peak value of the
measured received power value is
displayed.
Enter the actual distance
of the reference here.
The maximum value of the received power value
which is phase-synthesized at the same distance
and averaged at the selected range is displayed.
Enter the same distance (4m) as
the reference for confirmation
