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Active phased array antennas
70
Antenna phased arrays
70
Antennas
70
Atmospheric physics
70
Geophysics
Radar systems
70
550
67
Lower thermosphere
47
Transceivers
47
Continuous operation
24
Experiments
24
Horizontal variability
24
Independent control
24
Polar mesosphere summer echoes
24
Transceiver modules
24
Arctic atmosphere
23
Data acquisition system
23
Equilateral triangles
23
Ground parameters
23
Half power beam widths
23
Mesosphere/lower thermospheres
23
Middle atmosphere
23
Monostatic radar
23
Radio astronomy
23
Sampling resolution
23
Spatial and temporal resolutions
23
Spatio-temporal resolution
23
FOS Earth and related environmental sciences
3
ddc:550
3
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