Radar astronomy is a technique of observing nearby astronomical objects by reflecting microwaves off target objects and analyzing the reflections.

It's essentially a big microwave transmitter.

Tom doesn't have a microwave oven.

The radar broke.

It is about time we bought a new microwave oven.

I never learned how to use a microwave oven.

This is the WMAP microwave background that we see.

Please put this in the microwave oven.

Aperture synthesis is also used by a type of radar system known as synthetic aperture radar, and even in optical telescopes.

They're not on my radar.

The boat was equipped with radar.

A Doppler radar is a specialized radar that makes use of the Doppler effect to produce velocity data about objects at a distance.

My boyfriend refuses to use the microwave.

The ship is not equipped with radar.

If the food's cold, put it in the microwave.

Don t put small animals in the microwave!

The radar transmission may either be pulsed or continuous.

It really wasn't on the radar screen.

Data supplied by the Shuttle Radar Topography Mission.

Tom is in the kitchen microwaving popcorn.

Cosmic microwave background experiments Subsequent to the discovery of the CMB, hundreds of cosmic microwave background experiments had been conducted to measure and characterize the signatures of the radiation.

This allowed the radar operator to easily indicate what direction to turn to intercept the target.

Aspide Mk.2 Improved version with active radar homing seeker.

References Bibliography David Atlas, Radar in Meteorology Battan Memorial and 40th Anniversary Radar Meteorology Conference , published by American Meteorological Society, Boston, 1990, 806 pages, ISBN 0 933876 86 6, AMS Code RADMET.

All you do is nuke it. What could be better?

Professor Van Allen told me about observations of Venus, that there was intense microwave radiation.

It had a new radar which would have provided a resolution of 5 to 7 meters.

For decades, radar measurements have indicated that there is ice on Mercury.

It was in the microwave range, and it appeared to be coming from all directions simultaneously.

The Doppler processor can only process velocities up to 1 2 the PRF of the radar.

The radar transmits an electromagnetic pulse along each of the antenna's pointing directions.

In 2008 a weather radar was installed to integrate it to the Civil Defense System in Argentina.

Radar systems have been used for a wide range of solar system studies.

Small amounts of the transmitted energy are scattered back (referred to as backscattering) toward and received by the radar.

Detection of the cosmic microwave background A cosmic microwave background was predicted in 1948 by George Gamow and Ralph Alpher, and by Alpher and Robert Herman as due to the hot big bang model.

Metamaterials, unfortunately A, it only works on microwave, and B, it doesn't work all that well yet.

The new website, i army.org, popped up on the social media radar on February 23.

It may not seem that, but if you were a microwave, this is how you would view it.

Also one of the solar panels failed to deploy completely, leaving the main radar panel of the spacecraft partially blocked.

But what they're seeing, way out there in the far reaches of the microwave background, is this kind of odd undulation.

Rays of light in this case, microwave light come in, and they just squish around the cell, and they come back the other side.

COBE (Cosmic Background Explorer) provided the first detection of the intrinsic fluctuations in the cosmic microwave background radiation in the 1990s.

Now if you think about it, in the age before GPS and radar, that was obviously a really difficult problem.

The classic zero doppler target is one which is on a heading that is tangential to the radar antenna beam.

Sigma 0 is computed from the signal power measurement using the distributed target radar equation.