How Does GPS Use Trilateration To Pinpoint An Unknown Position?

| * shows evidence of information on GPS’s from a brochure and a scientific source * accesses the scientific accuracy of the brochure by identifying areas of comparison in both publications noting any relevant missing information gives supporting statements for the assessment * evaluates the validity of the information in the brochure and gives supporting statements for the assessment * presents clear relevant drawings that show how waves are used in GPS’s * identifies how the properties of waves that make them useful for this type of technology * identifies some current research into the future development of GPS’s

Drivers can practice several safety tips to help them navigate the road more safely. First, use your cell phone for emergency situations only.  Pull over to the right shoulder to make the important call.  Next, limit the number of passengers in the car.  It is a good idea after a football game for a group of teenagers to drive around town texting and driving.  Driving with friends can create a dangerous driving situation because drivers are focused on their friends rather than on the road.  Finally, avoid eating while driving.  Food spills are a major cause of distraction.  Pick up a big Mac and fries on your way home and eat it while you navigate the heavy traffic.  Finding the extra fries in the bottom of the bag will taste good as you rear end the car stopping suddenly in front of you.

There is no longer a need to be a skilled map reader as GPS can provide directions anywhere to the most unskilled navigators, whether it be to a hospital for emergency treatment or a local point of interest for tourists and finds the shortest route16, making travel easier. GPS can also be used to track others16 which has made it far easier to find missing persons as with GPS becoming prevalent in phones and car, almost anyone can be tracked by one of these items. The impact of GPS on travel is unfathomable, it has made the method of navigation that was used for centuries almost obsolete and opened up the world to

With new technology being introduced on almost a daily basis, it needs to be decided what ways are safe to use that technology. Advanced technology has created an abundance of things that can be used while driving. The most popular technology used while driving is the cell phone. Although it was invented in the 1970s, the cell phone did not gain momentum until the 2000s. Even during its first days, the effect of a cell phone distraction was already in the spotlight (Brown, Tickner & Simmonds, 1969). Allowing people to talk wherever and whenever, it became important to ensure this technology was not harming society. Driving is a complex cognitive task. Since its use boomed in the 21st century, several road problems and accidents were linked

GPS software can be installed on all devices so that if they do go missing they can be found.

There are five tips on how to avoid common driving distractions: turn off your cell phone, use a hands free device only in cases of emergency, make sure all passengers have a safety belt equipped, eat before or after you drive, and program your GPS before you leave your driveway or parking lot. If you have to deal with any of these or other issues while driving pull over to the side of the road to address the given situation. Following these steps can assist in preventing the loss of life due to distracted driving. The cognitive distractions caused by the use of mobile phones while driving usually cause vehicular accidents to be more severe, however there are steps that can be taken to improve both personal and public safety; it’s up to us to take those steps (Professional Safety, page 1).

Today’s day and age maps have basically have been replaced by the technology of global positioning systems with allows for a little safer driving due to the driver is not trying to read a map when they are operating their vehicles but with the new technology comes new problems. This new system can allow the driver to fallow a voice but when the system is not up to date it cause drivers to have to make quick lane changes and exiting that is making them drive in a reckless manner. Most of the Systems are distracting because people will start driving they then turn on the system and try to input the address they need to get to which sometimes involves leaning in a distracting way and also taking their eyes of the road and mind on a different matter.( AwartickPublished) during the new age of occupations companies have now put computers in the cars to help people with all that needs to get finished on time and to allow to finish the jobs they are required to do, this is many seen in government vehicles

Since the advent of humanity, nature has always proved to provide us with sustenance and opportunities for adventure. Yet, it was not only the lack of funds for urban adventure that drew millions of millennials into the woods. In May of 2000, GPS had a revolutionary improvement. This advancement of the global positioning system allowed users to engage and control selective availability, enabling them to pinpoint their exact location and other select locations. The White House stated that, anyone could use GPS to isolate, "the location of items left behind for later recovery.” Thus, sparking the origin of

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,

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.

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].

A number of different wireless technilogies have been developed for inddor localisation like Infra Red , Ultra Sound , RFID , WLAN, Bluetooth etc.Before the various positioning systems are discussed, we examine a few of the wireless localisation positioning algorithms developed to inproe the accuracy of localisation.

In the previous chapter, we introduce about the indoor positioning system techniques and the research directions. In this chapter we will describe the basic theory related with the navigation and pose estimation systems for example, the coordinate system, the dead-reckoning method, the characteristic of Wi-Fi radio signal propagation etc. For all of the basic ideas are very important thing to understanding the configuration of our research as follow;

Four GPS satellite signals are used to compute positions in three dimensions and the time offset in the receiver clock" (Dana 1). So, GPS was created by the U.S. Department of Defense for the purpose of locating enemies for the U.S. military.