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Answered 2009-09-10 11:54:48

Doppler radar integrates succession measurements together in a phase coherent manor. So coherent radar is a property of Doppler radars

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What are the differences between Doppler radar and coherent radr?

number one u cant spell difference


What is the difference between Doppler sonography and Doppler radar?

Doppler sonography measures sound waves and Doppler radar measures radio waves.


Is the Doppler radar the only satellite radar in the world?

Actually the Doppler Radar aka nexrad Next generation radar is not a satellite it is a radar. Satellites are floating around the world in space and Doppler radars are here on earth to monitor weather. As far as I know the Doppler radar is the only weather radar in the world. It is basically the only thing used for monitoring weather. I the above is not quite correct. Weather radars come in two basic types coherent and non-coherent. The Coherent radar come in Doppler Radar which can be FMCW or Active Pulse Doppler. The non coherent Pulse Radar merely aim high energy pulses at the clouds and display the returned power in a colour display. The coherent version integrates many pulses together to gain a Higher signal to Noise and to detect water drops moving in clouds. That aside, to answer the question which has nothing to do with weather radar, Doppler radar is frequency used in space verticals because its coherent processing gains in achieves help to offset the ranges it operates over, but it is not the only radar technique to be used on satellites and it depends on what the radar is trying achieve. Note that Doppler radar is non a synonymous exclusively of "nexrad Next generation radar".


What is the difference between a Doppler radar and a regular radar?

Normal radar sends out radio waves to determine the location of an object. Doppler radar can not only find the location of an object or storm, but using something known as the Doppler effect can determine how fast it is moving towards or away from the radar.


How is Doppler radar better than the regular radar in detecting weather related events?

Doppler radar is better at detecting weather because the extra degree of freedom provides integration across successive measurement that also provides a butter signal to noise. Further more the Doppler domain allows the separation of ground clutter from moving objects like clouds and wind in storms. Finally Doppler radar is coherent so the integration method favored if FFT rather then non-coherent integrations like rolling moving averages etc.


Who invented the Doppler radar?

The Doppler Radar was invented by Bernard Gordon


Is fmcw radar a doppler radar?

An FMCW radar may make use of Doppler, but it doesn't necessarily.


Why is Doppler radar important?

Doppler radar is an important tool that is used to help track storms. It is a specialized radar that measures velocity by using the Doppler effect.


Who invented Doppler radar?

Christian Doppler


Where to buy a Doppler radar?

Baron Services is a top provider of Doppler Radar systems.


When was the Doppler radar invented?

The Doppler radar was invented by Bob Little Higgins in the year 1852


What is difference between Doppler radar and pulse Doppler radar?

Doppler radar uses the Doppler effect to distinguish between stationary and moving targets. There is no comparison between Doppler radars and pulsed radars. they both are different parameters. pulse and continuous waves refer to the type of information signal we want to modulate with high frequency signal called modulated signal. for example an S band radar can have 2 micr sec of information pulse signal and 3 giga Hz of modulated signal. while continuous wave radars only have changed information signal. now adays only pulsed radars are manufactured. continouse radars have some disadvantages.


Is Doppler radar used for finding hurricanes?

Yes, Doppler Radar can be used to find all storms!


How does the Doppler radar work?

Answer: There are actually two answers to this question, depending on which form of Doppler radar is being spoken of. True Doppler radar is what is used by police officer "radar guns" to determine the speed of a motor vehicle. Another form is the Pulse-Doppler radar which is used to track the speed of weather precipitation.


Does Doppler radar predict tornadoes?

No. Doppler radar can detect tornadoes and the rotation that can produce them. It is the meteorologist who makes a prediction by interpreting what the radar detects.


How does a Doppler radar differ from a traditional weather radar?

A Doppler radar works from waves going towards the precipitation. This is called Doppler effect Traditional radar like a maritime Radar works by transmitting energy at a storm and receiving the back scatter from rain, the antenna maybe angled upwards and the coloring of the radar image may become colored, and is probably an add on mode so maybe horizontally polarised. Doppler weather radar is vertically polarised as it is looking for wind sheer effects from move rain drops moving up wards and down wards in storm clouds system. Doppler system can still detect the picture that the traditional weather radar can by peak summing the Doppler bins for each range cell in a range Doppler map. However the Doppler system will have better signal to noise then the Traditional system as the system is coherent and dose not relay of lossy filter based on statistical differences of a target distribution and rains distribution.


Where did Christian Doppler invent the Doppler Radar?

Christian Doppler did not invent Doppler Radar. He described what is now known as the Doppler effect in 1842 in Austria. It is used to describe the behavior of waves (such as light or sound) that are emitted by a moving object. Doppler radar, which utilizes the Doppler effect, was developed in the United States during World War II.


What has the author Martin Schetzen written?

Martin Schetzen has written: 'Airborne doppler radar' -- subject(s): Doppler radar, MATLAB, Radar in aeronautics 'Linear Time-Invariant Systems' 'Airborne Doppler Radar (Progress in Astronautics and Aeronautics)'


Does the Doppler radar predict tornadoes?

The Doppler radar itself does not predict tornadoes, meteorologists do. Doppler radar can detect the signature of a possible tornado, but it usually takes reports from weather spotter to confirm a tornado is occurring.


Does Doppler radar aid tornado detection?

Yes. Doppler radar is perhaps the most important tool in tornado detection.


How are differences in rain intensity viewed of a Doppler radar?

A Doppler radar is a radar that uses a coherent transmitter pulse from a solid state transmitter system, rather than the incoherent pulse from a device such as a magnetron. A coherent signal is a pure sine wave, therefore having a single frequency spectrum, rather than a cluster of frequencies. The radar detects rain/wet snow etc in the normal way, by measuring it's Rayliegh backscatter coefficient. However, it can also detect rapid motion of raindrops by measuring the spectrum of the returned signal. The Doppler principal will cause frequency shifts in the signal that can be extracted by Fourier analysis. This allows the violence of the storm to be measured.


Where was the first Doppler radar used in the US?

The exact location of where the first Doppler radar system was used cannot be determined because the first radar systems were mobile.


What is a C-Band Doppler radar?

C-Band Doppler Radar is any Doppler radar system which operates in the C-Band of the electromagnetic spectrum (around 4.8Ghz). These are typically the radar systems seen at TV stations as they are affordable and powerful enough for their purposes.


How is a hailstorm tracked?

Doppler RADAR


How do you track a thunderstorm?

On Doppler radar


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