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Application
of CAF Projections and Slices
Projections and Slices of the
Cross-Ambiguity Function (CAF) can be
exploited in many ways. Here we briefly
present three methods for
detection of targets:
I Dual Projection -
Method to
extract targets from CAF with
high range and Doppler resolution. Perform
projections of the CAF at two unique
projection angles. Then back project the
peaks from both
projection axis back to the point of intersection in CAF space.
The projection angles are selected in coordination with waveform design
so as to maximize detection performance.
II Projection / Slice -
Method
to extract targets from CAF
with high range and Doppler resolution. First
detect the CAF peak by use of a
Projection operation at an angle chosen to optimize probability of
detection. Then
perform a Slice operation
across the CAF for high resolution verification of the target,
at an angle orthogonal to the projection and intersecting the
projection peak. The Projection and Slice operations may be
performed
using the same radar waveform, or separate waveforms can be
independently designed to optimize
the detection and verification performance of each operation.
III Dual Slice -
Method to
extract targets from CAF with
high range and Doppler resolution. First detect
the CAF peak by using a Slice operation at a given angle that is
optimized for high probability of detection of the target. Then
perform a second Slice operation
across the CAF
at an angle that is optimized for high resolution verification of the
target. The two Slice operations may be performed
using the same radar waveform, or separate waveforms can be
independently designed to optimize
the detection and verification performance of each
operation.
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