Home

Radarverfahren

RadarVerfahren, or radar methods, are techniques that use radio waves to detect and characterize objects. They rely on the emission of electromagnetic signals, the reflection of these signals from targets, and the processing of received echoes to determine properties such as range, bearing, and velocity.

Principles include time-of-flight measurements, which yield range through R = c t / 2, and Doppler analysis, which

Common radar types include pulsed radar, which transmits short pulses and uses time-gating to measure range;

Performance metrics include range resolution ΔR ≈ c/(2B), where B is signal bandwidth; angular resolution depends on

RadarVerfahren are employed in air traffic control, meteorology, defense and surveillance, automotive safety systems, maritime navigation,

provides
radial
velocity.
Bearing
is
inferred
from
the
angular
response
of
the
antenna
or
from
multiple
beams
in
phased-array
systems.
The
radar
equation
relates
transmitted
power,
antenna
gain,
target
cross
section,
and
received
power.
FMCW
or
swept-frequency
radar,
which
encodes
range
in
the
frequency
difference
of
a
linearly
chirped
signal;
and
continuous-wave
radar,
which
focuses
on
velocity.
Synthetic
aperture
radar
(SAR)
uses
platform
motion
to
produce
high-resolution
imagery,
while
weather
radar
operates
at
wavelengths
suitable
for
precipitation
detection.
wavelength
and
aperture
size;
and
detection
capability
depends
on
signal-to-noise
ratio,
clutter
rejection,
and
the
radar
cross
section
of
targets.
Calibration,
processing
algorithms,
and
interference
handling
are
essential.
and
space
tracking,
among
other
fields.
Developments
continue
in
digital
signal
processing,
multi-static
configurations,
and
high-resolution
imaging.