...the who's who,
and the what's what 
of the space industry

Space Careers

pencil  Blog List

Displaying items by tag: radar

Thursday, 09 April 2015 08:28

Elettronica Marittima S.r.l.

Radar Systems; Integrated Navigation systems; Sourveillance Systems;

Published in Organisations
Tagged under
Wednesday, 14 December 2011 11:25

SAR

Synthetic-aperture radar (SAR) is a form of radar whose defining characteristic is its use of relative motion between an antenna and its target region to provide distinctive long-term coherent-signal variations that are exploited to obtain finer spatial resolution than is possible with conventional beam-scanning means. It originated as an advanced form of side-looking airborne radar (SLAR).

SAR is usually implemented by mounting, on a moving platform such as an aircraft or spacecraft, a single beam-forming antenna from which a target scene is repeatedly illuminated with pulses of radio waves at wavelengths anywhere from a meter down to millimeters. The many echo waveforms received successively at the different antenna positions are coherently detected and stored and then post-processed together to resolve elements in an image of the target region.

Current (2010) airborne systems provide resolutions to about 10 cm, ultra-wideband systems provide resolutions of a few millimeters, and experimental terahertz SAR has provided sub-millimeter resolution in the laboratory.

SAR images have wide applications in remote sensing and mapping of the surfaces of both the Earth and other planets. SAR can also be implemented as "inverse SAR" by observing a moving target over a substantial time with a stationary antenna.


Published in Projects
Tagged under

Latest News ...

The promise and peril of a crewed Mars...
Washington (AFP) June 6, 2025 A crewed mission to Mars would rank among the most complex and cost...

Read more

Renowned Mars expert says Trump-Musk axis risks dooming...
Washington (AFP) June 6, 2025 Robert Zubrin quite literally wrote the book on why humanity should...

Read more

Japanese company aborts Moon mission after losing contact...
Tokyo (AFP) June 6, 2025 Japan's hopes of achieving its first soft landing on the Moon by a priva...

Read more

In row with Trump, Musk says will end...
Washington (AFP) June 5, 2025 SpaceX chief Elon Musk said Thursday he would begin "decommissionin...

Read more

Japanese company loses contact with Moon lander
Tokyo (AFP) June 5, 2025 A Japanese company lost contact with its Moon lander Resilience during a...

Read more

Why Elon Musk sees Mars as the only...
Los Angeles CA (SPX) Jun 05, 2025 Elon Musk, the visionary behind SpaceX, Tesla, and Neuralink, is ...

Read more

Second ispace lunar lander presumed lost
Resilience, the second mission by Japanese company ispace, likely crashed attempting a landing on t...

Read more

Cruz seeks $10 billion for NASA programs in...
The chairman of the Senate Commerce Committee unveiled a proposal to add $10 billion to a budget re...

Read more

Filter:
Filter: