 |
|
 |
|
This
figure shows how well the PRED performs in the environment
when it is programmed to de-interleave the pulse trains and
jam a single emitter at a time. This test is performed by
programming the PRED to select a single emitter at a time
and produce a single up-range false target in a consistent
location from PRI to PRI. The Evaluation Station measures
the position of the false target on each PRI and counts the
position as correct if it is within 60 ns of the desired
position. All emitters are programmed to contain 5% dropped
pulses.
The
RED bars show how often the
illuminations of each emitter are interleaved. For example,
emitter 0 (Gen_Video0) is present without
interference about 75% of the time – i.e. about 25% of its
illumination time it is interleaved with other emitters.
For this environment, the emitters are overlapped anywhere
from 22 to 40% of their illumination times. In order to
work in such an environment a great deal of real-time
de-interleaving capability is required.
The
BLUE bars show the
percentage of correctly placed false targets for each
emitter. Even though the scans are overlapping, the PRED is
able to consistently de-interleave the pulse trains and
produce false targets correctly more than 90% of the time.
 |
|
 |