Results 141 to 150 of about 601,794 (307)

A comparison of Skylab S-193 and aircraft views of surface roughness and a look toward SEASAT [PDF]

open access: yes
An extensive aircraft underflight program was conducted along the Skylab groundpath for the purpose of documenting wind, wave, and atmospheric conditions affecting the amplitude of the active and passive microwave signatures.
Ross, D.
core   +1 more source

Advanced polarimetric subsurface FM-CW radar

open access: yesAdvanced polarimetric subsurface FM-CW radar
The subsurface radar suffers from two typical problems, i.e., strong clutter from surface and severe wave attenuation in the underground. This paper presents a unique countermeasure to these problems using a polarimetric FM-CW radar and an equivalent sensitivity time control (STC) technique.
openaire  

FM-CW laser radar at 10.6 microns

open access: yes, 1974
The feasibility of a continuous -wave frequency-modulated radar with a CO- laser as a transmitting source was investigated. A developmental system was constructed and tested and the feasibility of an optical radar utilizing coherent detection at 10.6 microns was demonstrated.
openaire   +1 more source

A developmental CW FM multi-target radar.

open access: yes, 1971
The feasibility of an X-band (8.0-12.5 GHz) continuous-wave multiple-target radar employing linear frequency modulation was investigated. From available laboratory equipment a working model was constructed and tested. Separate parabolic antennas were used for transmitting and receiving. The transmitter employs a reflex klystron followed by low and high-
openaire   +1 more source

Studies of Precipitation Processes in the Troposphere Using an FM-CW Radar [PDF]

open access: bronze, 1989
L.P. Ligthart, L. R. Nieuwkerk
openalex   +1 more source

Hybrid LiDAR-radar at 9 μm wavelength with unipolar quantum optoelectronic devices. [PDF]

open access: yesNanophotonics
Del Balzo L   +9 more
europepmc   +1 more source

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