-
receiving antennas,
sidelobes may pick up
interfering signals, and
increase the
noise level in the receiver. The
power density in the
sidelobes is generally...
- with the far-out
sidelobes are much more serious. Here
these sidelobes now rise to −25 dB at +/-T/2. As a guide, the far-out
sidelobe levels are given...
- and
fourth sidelobes, but
result in a
discontinuity at the
edges and a 6 dB/oct fall-off. The
truncated coefficients do not null the
sidelobes as well,...
- The
other lobes are
called "
sidelobes", and
usually represent unwanted radiation in
undesired directions. The
sidelobe in the
opposite direction from...
- be
desirable to
start with an
autocorrelation function having very low
sidelobes. The
governing code pattern, he insisted,
could be
unambiguously recognized...
-
appropriate window functions. The
sidelobes can
cause significant image degradation. First, the
peaks of the
stronger sidelobes may
cause a
string of progressively...
-
larger than the wavelength,
diffraction usually causes many
narrow sidelobes, so the
sidelobe pattern is complex.
There is also
usually a backlobe, in the opposite...
-
transmitted information. For example, a
given radar antenna will have
sidelobes emanating from a
direction other than that in
which the main
antenna is...
-
directional but
cannot be
designed without sidelobes.
Aircraft could also
detect interrogations coming from
these sidelobes and
reply appropriately.
However these...
-
affecting radars along other lines of
sight through the
radar receiver's
sidelobes (
sidelobe jamming).
Mainlobe jamming can
generally only be
reduced by narrowing...
