X-Nico

12 unusual facts about doppler radar


.338 Lapua Magnum

An example of such a special .338 calibre extreme range bullet is the German CNC manufactured mono-metal 18.92 gram (292 gr) LM-105 (G1 BC ≈ 0.93 – this Ballistic coefficient (BC) is calculated by its designer, Lutz Möller, and not proven by Doppler radar measurements).

.408 Cheyenne Tactical

An example of such a special .375 caliber extreme range bullet is the German CNC manufactured mono-metal 26.44 gram (408 gr) .375 Viking (G1 BC 1.537; this Ballistic coefficient (BC) is calculated by its designer, Mr. Lutz Möller, and not proven by Doppler radar measurements).

.416 Barrett

An example of such a special .416 Barrett very low drag extreme range bullet is the German CNC manufactured mono-metal 27.5 gram (424 gr) .416 Barrett MSG (G1 BC ≈ 1.103 – this ballistic coefficient (BC) is calculated by its designer, Mr. Lutz Möller, and not proven by Doppler radar measurements).

CheyTac Intervention

The CheyTac Advanced Ballistic Computer (ABC) System software package uses tabulated bullet flight data derived from high speed Doppler Radar test sessions, and mathematical models to predict ballistic trajectory.

Cyclone Olivia

1999 Oklahoma tornado outbreak – produced an F5 tornado which had winds estimated at 511 km/h (318 mph) by the doppler data of the weather radar

Doppler radar

Normally it is one or the other; a radar designed for detecting targets from zero to Mach 2 does not have a high resolution in speed, while a radar designed for high resolution velocity measurements does not have a wide range of speeds.

The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference between the observed frequency and the emitted frequency of a wave for an observer moving relative to the source of the waves.

Drozd

Drozd uses 24.5 GHz Doppler radar to detect incoming rounds travelling between 70 and 700 m/s (to avoid engaging small arms or other faster projectiles).

Karl Ramsayer

Much of Ramsayer's research on navigation concerned dead reckoning, automatic navigation maps based on Doppler radar, and improvements in astro navigation.

Laser Interferometer Space Antenna

Previous searches for gravitational waves in space were conducted for short periods by planetary missions that had other primary science objectives (such as Cassini–Huygens), using microwave Doppler tracking to monitor fluctuations in the Earth-spacecraft distance.

Mount Musgrave

The summit of the mountain hosts Environment Canada's doppler weather radar station "XME", part of the Canadian weather radar network.

Nav/attack system

Since INS is subject to "drift," limiting its accuracy, the nav/attack system periodically updates the aircraft's position based on external radio beacons (such as TACAN) or (since the 1990s) GPS or equivalent satellite navigation system, or using a Doppler radar (although this increases the risk of detection).


External ballistics

Weibel 1000e Doppler radars are used by governments, professional ballisticians, defence forces and a few ammunition manufacturers to obtain real world data of the flight behavior of projectiles of their interest.

NASAMS

Until the late 1990s the RNoAF ground based air defence solution, also known as the Norwegian Solution (NORSOL), consisted of three different weapon systems; the 40mm Bofors L70 gun (controlled by the Oerlikon Contraves FCS2000 monopulse doppler tracking radar), the laser beam riding RBS 70 MANPADS system and the NASAMS.

SAM-N-2 Lark

Six of the Convair airframes were given to Raytheon to explore use of velocity-gated continuous wave doppler radar for guided missile target seekers, while most other United States investigators used range-gated pulse radar.