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Doppler radar

Definitions

  • WordNet 3.6
    • n Doppler radar radar that uses the Doppler shift to measure velocity
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Usage

In literature:

Was the design good enough to defeat the MiG-31s' pulse- Doppler radar?
"Project Daedalus" by Thomas Hoover
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In news:

You know it's getting bad when mayflies are visible on Doppler radar.
As the mayflies hatched on the Mississippi, the dense swarms reflected the radar beam back toward the Doppler receiver.
This spring, you'll be able to check overnight rainfall amounts across your farm via email, thanks to a patent-pending technology that uses Doppler radar and proprietary algorithms to estimate rainfall amounts at any location.
Conventional doppler radar (left) transmits only a horizontal beam.
KELO TV provides the latest news, doppler radar weather and sports for Sioux Falls, Aberdeen, Pierre, Rapid City, South Dakota, Iowa and Minnesota.
0Dual-Polarization technology has been installed in Doppler Radar.
Animated Radar Click this link for an animated loop of the Triple Doppler Radar from NBC3.
Rainfall over the last 48 hours estimated by doppler radar.
Rainy days shows weather radar doppler images, rain not clouds.
This app shows weather radar doppler images from bruienradar, meteox, vaderradar, eumtstat and nws using Google Maps.
Mayfly hatch visible on doppler radar.
Incorporating a non-contact belt speed sensor with Doppler radar to measure conveyor speed, the scanner has an on-board microprocessor that uses information from the scanning head to calculate volume and mass throughput.
ESPN's Ball Tracker Follows Home Runs With Doppler Radar.
Susquehanna Valley Radar Doppler Loop.
As of Friday, July 27, 2012, 08:21 p.m. AT 8 pm, THE NATIONAL WEATHER SERVICE DOPPLER RADAR CANCELED A SEVERE THUNDERSTORM WATCH FOR THE MONROE COUNTY REGION THE STRONG THUNDERSTORMS HAVE MOVED OUT OF THE AREA, FORECASTERS SAID.
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In science:

The presence of a jammer (a foe interference source, transmitting high power noise aimed at “blinding” the radar system) results in a barrage of noise localized in angle and uniformly distributed over all Doppler frequencies (since the transmitted noise is white).
The Rank of the Covariance Matrix of an Evanescent Field
Next Generation Radar (NEXRAD) and Terminal Doppler Weather Radar (TDWR) base reflectivity imagery from National Climatic Data Center (NCDC) were utilized to verify that observed wind gusts were associated with downbursts and not associated with other types of convective wind phenomena (i.e. gust fronts).
A New Graphical Microburst Guidance Product
Specifically, ten doppler radar images separated by 30 minutes each were converted to data which was then clustered as described in Section 5.
Gibbs Sampling for (Coupled) Infinite Mixture Models in the Stick Breaking Representation
Despite the significant resources that have been devoted to MIMO radar, there exists fairly little rigorous mathematical theory for MIMO radar that addresses fundamental questions, such as how many targets can be detected at which azimuthrange-Doppler resolution and at what signal-to-noise ratio.
Accurate detection of moving targets via random sensor arrays and Kerdock codes
Let Z(t; β, τ, f ) be the NR × Ns noise-free received signal matrix from a unit strength target at direction β, delay τ, and Doppler f (corresponding to its radial velocity with respect to the radar).
Accurate detection of moving targets via random sensor arrays and Kerdock codes
This was made possible by the ability to do Doppler measurements using both X-band (7175 MHz) and Ka-band (34316 MHz) radar, thereby significantly reducing the dispersive effects of the solar corona.
The Confrontation between General Relativity and Experiment
For example, Doppler ranging on Viking probes in the vicinity of Mars and deflection measurements using VLBI astrometry or radar ranging on the Cassini probe have given smaller and smaller values of |γ − 1|, with presently a bound of a few 10−5 .
Long range gravity tests and the Pioneer anomaly
We restrict attention to dates after 1950, when Doppler radar data started being used to make reliable wind-speed estimates, and we remove a small fraction of storms that have suspect features.
Statistical modelling of tropical cyclone tracks: a semi-parametric model for the mean trajectory
It is very interesting to notice in figures 14 and 15 that the Doppler factor for both radar echo scenarios analysed above is always smaller than 1. It means that the reception period is always longer than the emission period, independent on which observer accelerates faster or performs the radar experiment.
The system of uniformly accelerating observers
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