6. HOW TO INTERPRET THE RADAR DISPLAY
6-2
6.1.2 Radar resolution
The bearing resolution and range resolution are important in radar resolution.
Bearing resolution
The bearing resolution is the ability of the radar to display the echoes received from
two targets at the same range as the separate echoes. The bearing resolution is pro-
portional to the antenna length and the wavelength.
Range resolution
The range resolution is the ability to display the echoes received from two targets on
the same bearing as separate echoes. The range resolution is determined by only
pulse length.
The test targets used to determine the range and bearing resolution are radar reflec-
tors that have an echoing area of 10 m
2
.
Targets
Targets
Horizontal beam width
Horizontal beam width
Separate
target echoes
Overlapped
target echoes
Separate
target echoes
Overlapped
target echoes
Targets
Targets
Overlapping
Transmission
pulse
Transmission
pulse
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