MDC-3560P/3510P Series
Chapter 5
BASIC OPERATION
93142002-00
5-19
Picture resolution
The picture resolution depends on the bearing and range discriminations that are
solely determined by the antenna horizontal beam width and the transmission pulse
length. These factors are defined in the following explanations and illustrations.
(1) Bearing discrimination
The bearing discrimination is defined as the minimum bearing where two targets of
the same distance are displayed as two independent images on the screen. The
bearing discrimination is determined by the aerial horizontal beam width.
(2) Range discrimination
The range discrimination is defined as the minimum distance where two different
targets situated in line on the same bearing are shown separated. The range
discrimination is dependent on the transmission pulse length.
Echoes from
two targets are
overlapped (not
separated)
Length of
transmission
pulse
Range
Between two
targets
Transmission
pulse
Range
between two
targets
When the range between two targets is narrower than the transmission
pulse length.
Radar antenna
Radar antenna
Echoes from
two targets are
separated
The distance between two
targets in azimuth is longer than
the radar beam width.
The distance
between two
targets in azimuth is shorter than
the radar beam width.
When the range between two targets is wider than the transmission pulse length.
