Chapter 11
Radar Systems of Air Transport
Nowadays, the radar systems of almost all types are widely used in air transport.
None-coherent radar systems have found its application as onboard surveillance
systems of aerial vehicles. Let us examine the none-coherent radar systems on
example of onboard weather-navigational radar stations (WNRS).
WNRS is intended for the following tasks solution:
• radar surveillance of air space (in horizontal and vertical plane) in order to detect
moisture targets and areas in it, dangerous for flights (Fig. 11.1);
• radar surveillance of ground and water surfaces for aircraft navigation by specific
ground and water references (Fig. 11.2);
• detection of slant distance and course angles of observed radar reference points
(RRP) and moisture targets.
WNRS provides: detection of convective moisture targets (thunders, thick
cumulus/clouds) with possibility to detect its dangerous degree for AV flight and
dangerous turbulence in moisture targets; detection of distinctive ground reference
points like large towns, coast line of large water basins, large sea vessels; built-in
operational check for failure detection (trouble shooting) of each block including
communications lines.
Such systems have the following main operation modes: “Meteo” and “Ground.”
“Meteo” mode is a basic mode of operation. In this mode, the radar provides onscreen displaying of meteorological situation radar image (Fig. 2.6) in polar coordinates “azimuth-range” in air space, limited by azimuthal angles ±60° (or ±45°)
relatively to construction line of aerial vehicle, and elevation angle, defined relatively to horizontal plane by tilt of antenna system. Moisture targets depending on
its danger level for aerial vehicle flight are displayed in variously colors.
“Ground” mode is intended for navigational orientation by distinctive ground
objects. In this mode, the WNRS provides radar image of ground surface acquisition
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021
D. A. Akmaykin et al., Theoretical Foundations of Radar Location
and Radio Navigation, Springer Aerospace Technology,
https://doi.org/10.1007/978-981-33-6514-8_11
193
Radar Systems of Air Transport
Nowadays, the radar systems of almost all types are widely used in air transport.
None-coherent radar systems have found its application as onboard surveillance
systems of aerial vehicles. Let us examine the none-coherent radar systems on
example of onboard weather-navigational radar stations (WNRS).
WNRS is intended for the following tasks solution:
• radar surveillance of air space (in horizontal and vertical plane) in order to detect
moisture targets and areas in it, dangerous for flights (Fig. 11.1);
• radar surveillance of ground and water surfaces for aircraft navigation by specific
ground and water references (Fig. 11.2);
• detection of slant distance and course angles of observed radar reference points
(RRP) and moisture targets.
WNRS provides: detection of convective moisture targets (thunders, thick
cumulus/clouds) with possibility to detect its dangerous degree for AV flight and
dangerous turbulence in moisture targets; detection of distinctive ground reference
points like large towns, coast line of large water basins, large sea vessels; built-in
operational check for failure detection (trouble shooting) of each block including
communications lines.
Such systems have the following main operation modes: “Meteo” and “Ground.”
“Meteo” mode is a basic mode of operation. In this mode, the radar provides onscreen displaying of meteorological situation radar image (Fig. 2.6) in polar coordinates “azimuth-range” in air space, limited by azimuthal angles ±60° (or ±45°)
relatively to construction line of aerial vehicle, and elevation angle, defined relatively to horizontal plane by tilt of antenna system. Moisture targets depending on
its danger level for aerial vehicle flight are displayed in variously colors.
“Ground” mode is intended for navigational orientation by distinctive ground
objects. In this mode, the WNRS provides radar image of ground surface acquisition
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021
D. A. Akmaykin et al., Theoretical Foundations of Radar Location
and Radio Navigation, Springer Aerospace Technology,
https://doi.org/10.1007/978-981-33-6514-8_11
193