Gps And The Global Positioning System

The Global positioning system is a satellite based navigation system consisting of 24 satellites in the orbit placed by the US Department of Defence (DOD). Bradford Parkinson, Ivan A Getting and Roger L. Easton are credited for the invention of GPS. GPS was fully operational in the year 1995.

Lots of people around the world use GPS on their phones and in their cars. Before the Space Race and GPS’s, it would take people much longer to get to their

In addition, the police is using the GPS for location tracking. In the article, DesMarais,2012. “This Smartphone Tracking Tech Will Give You the creeps.” It explains that the IPS allows pinpoint tracking of any WiFi enabled device, such as a smartphone or tablet.

There are three ways for anti-GPS spoofing. These are cryptography, signal-distortion detection, and direction-of-arrival sensing. However, use of one method is not enough. Combining strategies is the sure way to secure a countermeasure for spoofing. Cryptographic method allows the users to authenticate signals on the fly. An example of cryptographic technique is the use of PRN codes for the civilian receivers. PRN codes are unpredictable that is why a spoofer cannot grasp the codes ahead of time. In addition, there is still a need of verification of each new signal. Every civilian receiver carries an encryption key similar to the ones used by military receivers. It is difficult for the attackers to obtain the keys correctly. Nevertheless,

Tivonne, you are absolutely correct when discussing GPS for tracking semi trucks with materials. A local trucking company that hauls materials to our facilities, calls our shipping and receiving departments when their trucks GPS indicates they are within 15 to 30 minutes away. This is helpful for our employees to be ready with paperwork, crews to unload, and fork truck/crane to remove cargo. This phone also can alert the individual who ordered the materials, so they can inspect on the dock to accept or decline cargo. If the materials fails visual inspection, the cargo can stay on truck to be sent back.

Geofencing is technology that is incorporated into software programs and uses global positioning system (GPS) or radio frequency identification (RFID) to define geographical boundaries. Acting as a virtual border, when programs allow geofencing, triggers send signals to devices upon entering or exiting specific areas.

Department of Defense. Transmitting information that the signal picks by circling the earth twice a day in a constant speed (“What is GPS?”), like Google Earth. This helps to also pick up a person’s real time movement by adding additional tracking of people, like sex offenders, and where their location is. Tracking where and when a crime takes place is also a job for GPS. GPS is more reliable system of tracking than the Radio frequency, or the RF system

In this high-tech environment of the 21st Century, most everyone who drives a car or carries a cellphone has heard of the Global Positioning System (GPS), but few could provide details on the origin, development and many uses of this system, outside of basic everyday navigation. This paper will explore the origin and development of the Global Positioning System, as well as analyze various uses of this system. Some of the practices include Military use, surveillance of those convicted of violent crimes, tracking of wildlife, and location based services as it applies to the Cellular Communications Industry. This paper will also explore the reality of the Global Positioning System as it relates to a Christian worldview.

Garmin is a producer of GPS technology, based in Taiwan, but with major offices in Switzerland and incorporation in the Cayman Islands (MSN Moneycentral, 2013). The company enjoyed strong growth for much of the 2000s, only to see that growth deteriorate when its core technology, GPS, was installed in smartphones. Prior to that point, Garmin sold its global positioning systems as separate units, sometimes for hundreds of dollars. The obsolescence of its core computer product had many observers questioning the long-term viability of the company (Seeking Alpha, 2009; Ganapati, 2008; Moritz, 2008). The company continues to operate today, having

The increase of GPS technology current with the use of team sports settings to provide sports scientists, coaches, and trainers with the comprehensive and real-time analysis of on-field player performance during competition. The global positioning system (GPS) us used in everyday life with human cars and phones to monitor how far we have traveled and speed.The GPS technology is used in

TerraCog Inc. is a company that specializes in high quality global position system and fishing sonar equipment. Even though TerraCog is usually late to enter the market with new products, they always outperform their competitors by having a higher quality product and better addressing the needs of the consumer. In 2006, Posthaste, a rival company, introduced a GPS prototype called “BirdsI”. At the time, BirdsI was the only handheld GPS that contained satellite imagery. TerraCog did not see any threat initially, an example of short-sightedness and complacency on management’s part. Eventually, wary of their lapse in judgment upon their rivals’ sudden takeover of the handheld GPS market, TerraCog President Richard Fiero made a push to launch a TerraCog version of BirdsI – Project Aerial. Problems soon arose, however, when the costs of Aerial proved to be too burdensome and uncompetitive.

There are 24 satellites that circle the earth every 12 hours. These satellites are split into six groups of four and each group creates an orbital plane. These six orbital planes allow the satellites to move in a way that covers the earth completely. GPS satellites transmit signals to equipment on the ground. An example is a GPS receiver (GPS receiver can only receive the signals form the satellites but they can’t transmit any signals). The receivers work best in an open outdoor area where there is a clear view to the sky. At any time there are always four visible satellites. The GPS receiver can calculate how far each satellite is based on the time it took the signal to reach the receiver. Using the distance from each satellite that the receiver calculated it could then use a process called trilateration to pinpoint the location of the receiver [1].

To calculate a position in 2D the system has to be locked on to at least three satellites, but for a 3D representation you need to be locked on to at least 4 satellites. Once the position is found the GPS can calculate much more info like speed, bearing, track, distance, etc… The GPS system is very accurate; Garmin (a leader in GPS technology) states that their newest receiver is accurate up to an average of 15 meters. With the implementation of WAAS (wide area augmentation system) the receiver accuracy can get closer to three meters. There are many different signal errors that can occur with GPS, ionospheric and tropospheric errors are when the signal slows down as it is passed through the ionosphere or the troposphere. Signal multipath error happens when the signal is reflected off of objects. There are many other errors that could happen with relation to GPS that have not been mentioned in this paper.

GPS is the most modern technology or system used for surveying. GPS receiver and Measuring tape are instruments to be used.

The applications they used in LoJack system can even penetrate buildings to locate stolen assets. The unit can also be installed on the vehicle with no visibility of it, so the presence of the device is unknown to outsiders.