Radar Detector
Radar, which stands for Radio Detection and Ranging, was developed for military purposes. The British and US military used radar to locate ships and airplanes. However, when they were using this technology annoying blips consistently appeared on its screen. It turned out that these blips were raindrops. They saw this hindrance as a wonderful opportunity and in 1957 created the WSR-57 (weather surveillance, 1957), which became the primary radar for the weather service for nearly 40 years. This technology was later further developed and used for other purposes such as air traffic control. They use radar to track planes both on ground and air, and also to guide planes in for smooth landings. NASA uses radar to map the earth and other planes, to track satellites and space debris and to help with things like docking and maneuvering. The military uses it to detect the enemy and guide weapons. Police use radar detector to detect the speed of passing motorist.
In conclusion, radar is something that is used all around us even though it is normally invisible. When people use radar, they are usually trying to accomplish one of three things; detecting the presence of an object at a distance, detect the speed of an object, or to map something. All three of these activities can be accomplished simply by using echo and Doppler shift. These two concepts are easy to understand because your ear hears echo and Doppler shift every day. Radar makes use of the same techniques using radio waves.
One particular usage of this radar technology is for transportation purposes. For many people, speeding is a normal part of daily life. This law bending is so common and also so accepted that there is even a special electronic equipment to help drivers get away with it. Since their introduction in 1970s by Mike Churchman, radar detectors have become a must have accessories for high-speed drivers. To understand how radar detector work, you first have to know what they are detecting. The concept of measuring vehicle speed is very simple. A basic speed gun is just a radio Transmitter and receiver combined into one unit. A radio transmitter is a device that oscillates an electrical current so that the voltage goes up and down at a certain frequency.
Both the Britain and Germany made substantial scientific developments throughout the course of the war. Prior to the development of the Lancaster, the British Air Force lacked a long-range bomber, capable of carrying substantial bomb loads. Wattson Watt foresaw the need for an early detection system; he developed the 'Radiolocation' system, which alerted Britain to invading forces. The German Air Force developed an on board radar, called the 'Metric system', which was equipped to German night fighters.
Although these technologies have suffered cutbacks by the government, they have found usefulness in today’s world through reassessing their mission or in scientific research. The art of reconnaissance changed during the Cold War with the invention of the spy satellite, the U2 Spy Plane, and the nuclear powered submarines. Today much of the photos taken by the United States spy satellites and U2 Spy Planes are classified but they are still used today as a part of the military and the Center Intelligent Agency to identify threats just as they did during the Cold War. Submarines Tracking down and monitoring Soviet submarines movements during the Cold War was one of the major missions of the nuclear submarines, unfortunately today the submarine force of the United States is slowly shrinking due to budget cuts within the military.
Abstract: This paper examines different types of radio frequency ("RF") weapons that are currently being developed. It discusses the different types of weapons that currently exist, explains why they would be useful to terrorists, and explores different ways to defend against them.
Reading, Gwem. "Radar Operator in WW2." Letter. 8 Nov. 2003. N.p.: n.p., n.d. N. pag. BBC WW2 People's War. Web. 23 Apr. 2014.
Radar stands for Radio Detection and ranging, it dates back to the 1880’s when Heinrich Hertz first invented it. (Farina 1-1) Many other inventors eventually started inventing their own type of radar. Christian Hulsmeyer in 1904 had a patent for monostatic pulse radar which was used for the detection of ships for preventing collision at sea. In 1922 A. Hot et al. observed a fluctuating signal at the receiver when a shipped passed between the receiver and transmitter. (Farina 1-1)
"Radar during World War II." - GHN: IEEE Global History Network. N.p., n.d. Web. 16 Feb. 2014. .
Drivers who speed often do not realize the enormous danger they are creating. When someone is speeding they have a higher braking time and are often going too fast to notice all of their surroundings, and fail to take all of the safety precautions a driver should use. Road conditions play a large role in the effects of speeding. Choosing to speed can also get a person’s license taken away, cost a fortune, or both.
...yone wants. Radar is also frequently used by law enforcement for the detection of speeds to see if passing motorists are speeding.
Sensing is how we take in information from our surrounding world (Kroeger, Thuesen, & Rutledge, 2002). I believe that one can clearly see how being a sensor is beneficial for any member of the military. We rely on what we know, we make decisions based on intelligence, and very seldom do we conduct any kinds of operations without having facts to support us. This is typical for a sensor; acting on data, experience, and facts, rather than going into the unknown (Kroeger, Thuesen, & Rutledge, 2002).
This new technology helps the commanding officers know what is going on by that they can be back at there command base and watch raids unfold on large screens and watch real time footage. This allows them to know what exactly what is taking place.
RFID is in use all around us. If you have ever chipped your pet with an ID tag, used EZPass through a toll booth, or paid for gas using SpeedPass, you've used RFID. In addition, RFID is increasingly used with biometric technologies for security.
The Whirlwind used a cathode ray tube and a light gun to provide interactively. The Whirlwind was linked to a series of radars and could identify unfriendly aircraft and direct interceptor fighters to their projected locations. It was to be the prototype for a network of computers and radar sites (SAGE) acting as an important element of U.S. air defense for a quarter-century after 1958. In 1951, the first commercially-available computer was delivered to the Bureau of the Census by the Eckert Mauchly Computer Corporation.
Imagine driving on I-75 as cars race by you at a blink of an eye. You are driving 60 miles per hour, the speed limit; they must be doing 100 miles per hour or more. This is not an illusion; this is the reality of driving on a highway. Believe it, it happens everyday. Cars race down the road at uncontrollable speeds that cause tickets, accidents, and sadly death. Speed limits are a must for traffic control, for safety in neighborhoods and for avoidance of collisions.
Radar is usually taken for granted in these days of modern technology. Many people do not know how radar is really used, how it works, or why we need it. People are familiar with several uses of radar like police enforcement radar guns and radar that measures how fast a baseball is pitched in a major league game. These are only a few of the many uses radar has to offer. Radar can determine several properties of an object from a distance, such as its position, speed, direction of travel, and shape; it can also detect objects out of the range of sight in all weather conditions, making it a fundamental utility for many industries.