GPS System:


The GPS system was started by the U.S. Department of Defense in 1973, with the first prototype spacecraft launched in 1978 and the full constellation of 24 satellites operational in 1993.

Originally limited to use by the United States military, civilian use was allowed from the 1980s.

Advances in technology and new demands on the existing system have now led to efforts to modernize the GPS and implement the next generation of GPS Block IIIA satellites and Next Generation Operational Control System (OCX). 

Announcements from Vice President Al Gore and the White House in 1998 initiated these changes. In 2000, the U.S. Congress authorized the modernization effort, GPS III. During the 1990s, GPS quality was degraded by the United States government in a program called “Selective Availability”; this was discontinued in May 2000 by a law signed by President Bill Clinton.

What is GPS system?

GPS or Global Positioning System is a satellite navigation system that furnishes location and time information in all climate conditions to the user. GPS is used for navigation in planes, ships, cars and trucks also.

The system gives critical abilities to military and civilian users around the globe. GPS provides continuous real time, 3-dimensional positioning, navigation and timing worldwide.

How does GPS System Work?

The GPS system consists of three segments:

1) The space segment: the GPS satellites

2) The control system, operated by the U.S. military,

 3) The user segment, which includes both military and civilian users and their GPS equipment.

·      Space Segment:

The space segment is the number of satellites in the constellation. It comprises of 29 satellites circling the earth every 12 hours at 12,000 miles in altitude.

The function of the space segment is utilized to route/navigation signals and to store and re transmit the route/navigation message sent by the control segment. These transmissions are controlled by highly stable atomic clocks on the satellites.

·      Control Segment:

The control segment comprises of a master control station and five monitor stations outfitted with atomic clocks that are spread around the globe.

The five monitor stations monitor the GPS satellite signals and then send that qualified information to the master control station where abnormalities are revised and sent back to the GPS satellites through ground antennas. Control segment also referred as monitor station.

·      User Segment:

The user segment comprises of the GPS receiver, which receives the signals from the GPS satellites and determine how far away it is from each satellite. Mainly this segment is used for the U.S military, missile guidance systems, civilian applications for GPS in almost every field. Most of the civilian uses this from survey to transportation to natural resources and from there to agriculture purpose and mapping too.

GPS is used on some incidents in several ways, such as:

  1. To determine position locations; for example, you need to radio a helicopter pilot the coordinates of your position location so the pilot can pick you up.
  2. To navigate from one location to another; for example, you need to travel from a lookout to the fire perimeter.
  3. To create digitized maps; for example, you are assigned to plot the fire perimeter and hot spots.
  4. To determine distance between two different points.

3 Advantages of GPS:

  • GPS satellite based navigation system is an important tool for military, civil and commercial users
  • Vehicle tracking systems GPS-based navigation systems can provide us with turn by turn directions
  • Very high speed.

2 Disadvantages of GPS:

  • GPS satellite signals are too weak when compared to phone signals, so it doesn’t work as well indoors, underwater, under trees, etc.
  • The highest accuracy requires line-of-sight from the receiver to the satellite; this is why GPS doesn’t work very well in an urban environment.

About admin

Professional Freelancer and Digital Marketer

Check Also

Honda Cars 2019

Honda’s New Cars Model 2019:

Honda City 2019 New Honda cars model 2019 launched by Honda company. Honda City 2019 …


  1. Awesome post! Keep up the great work! 🙂

  2. EssayTyper

    Place anonymous order and get professional help from academic writers. They don’t have time to write different papers. Your academic assignments will undoubtedly be limited in time and sometimes, it’s had a need to complete them extremely fast. They aim to gain insights about possible actions they can take to obtain the best value from online professional composing agencies. Our writers are far too proficient at what they perform to wish to try to pass off someone else’s work as their own.

    Once you have a listing of possible topics, it is time to choose the best one which will answer fully the question posed for your essay. There are professional authors who work individually and provide effective writing assistance, however they charge a high fee. Make sure that every produce my essay” order is usually treated having an individual English majors and business majors alike have to produce papers – albeit, on different topics.

    These interactive writing lessons build basic writing skills, explain essay styles and construction, and teach students how exactly to organize their ideas. Just complete the form-and get yourself a high-quality paper on time. In all of our time operating our tailor made writing service, it has certainly not happened to any scholar. Ideal for many While other essay posting services are focused on their efficiency, we’re the best writing service to worry about our effectiveness first.

    Our PhD writing provider offers no cost revisions for an limitless number of times. Disclaimer: The reference papers supplied by serve as type papers for students and so are never to be submitted as it is. These papers are usually intended to be used for study and reference purposes only. Thanks to we of proofreaders and editors, you may be sure your papers will be perfect.

    Formal essays are usually academic in characteristics and tackle serious matters. Delegate the assignment to a specialist writer. Every law essay we provide undergoes our strict good quality checks in order to ensure that the work meets our exacting criteria. Begin work on the essays early to give yourself time and energy to reflect, write, and edit. You can trust us anytime and have our team to create my paper even if there is less than a day left.

    We have the best professional essay writers in our team. Writing a dissertation involves far more skill and knowledge compared to the average essay which means you should be on the look out for top rated dissertation writing services in Canada. This scholarly convention facilitates others (whether teachers or fellow scholars) to understand the basis of details and quotations the writer uses to aid the essay’s argument and facilitates readers evaluate to what degree the argument is reinforced by evidence, and to evaluate the quality of that evidence.

    Get finely composed supreme quality essays at money-spinning costs. If you have caused us before and want to work with a specific writer or authors, then tell us your preference. If you still can’t find your specific document type and would like to order custom writing, try our lookup feature or make contact with our support team. Become it your argumentative, narrative, descriptive, persuasive or important essays – we at Writers EACH HOUR are the lifesavers if you want an essay to be written now.

    Cool thing is that one could actually chat with your writer and point out all the details you need in the paper. Narrative Writing and Informative Posting take adolescent writers on an animal-filled journey to beginning essay composing. Just make an effort to buy essays on line and why don’t we show you how a perfectly written paper looks like. At , we know the importance of staying in close touch together with your paper writer.

    This may feel like going against the grain of what you’ve learned about writing academic essays, but it’s the key to drawing out there developed points. Not that I did so because I liked it, but this essay writing assistance has free amendments. The best academic writers on-board. We don’t resell papers which indicate each essay, dissertation, or coursework is totally unique.

    To make sure you’ve gotten exactly the essay you inquired for, we offer you to obtain a revision anytime you must increase something in the assignment we send out you. Essay writers here work on every buy from scratch. Will you write my school essay online anonymously?” Moves without saying, our composing assistance is 100% confidential. Putting two and two mutually, delegating the publishing assignment to a professional academic essayist may be the optimal remedy for a busy student.

    This also will reduce the time had a need to fulfill an order as a author would already be familiar with your demands. Our onboard tools will assist you to test the originality of one’s write my essay paper. Write My Essay Today is a writing service, targeted at helping you face up to the challenges, posed by your university professors. For less tough assignments (such as essays and book evaluations, for instance), we might will give you standard author to accomplish the job right and save you funds.

    PapersOwl is the foremost essay writing company not merely because we are able to complete any task, but also because we provide you with numerous fantastic bonuses and guarantees which are key to your results and satisfaction. However, there is a basic structure that is generally followed while creating essays. We are not a service for lazy students, we are a service for successful people who don’t want to give up their dreams since they lack time.

    They are all genuine reviews that show our essay writing service is preferred for students, by pupils. More and more college students are ordering from custom made paper writing services these days, and if you’re students yourself it’s easy to see why. The academic writing enterprise is a legal thing, and you may get a paper from such clubs and use it for your class.

    Our online writers are rather flexible and will gladly adjust their These are only some of the reasons why students tend to seek professionals able to publish my essay for low-cost. Our online paper publishing service offers assist in an array of fields. When a student approaches the provider needing a document written in a spanish the service agreements a author from that country to complete it. They added that all of the writers employed has at least a Master’s qualification with at least 60% of the writers that they had interacted with retaining a PhD.

    In case you are seeking a professional paper writing services to answer your questions you attended to the proper place. Our third group is ENL” which is an acronym for English as a native language.” These are professional writers from English-speaking countries. Students steadily build composing skills and confidence with each online writing study course, guided by one-on-one instruction with a dedicated, certified teacher.

    Making writing assistance more affordable with the program is really a way of showing gratitude to long-time customers. Any student needs to get an essay papers on time. Along with free revisions and the capability to produce high quality essays under limited deadline, you will be sure you’ll get what you need when it’s needed. There are various techniques our essay writing assistance will make sure your needs and expectations are increasingly being met.

    The essays are always delivered promptly, the writers are welcoming. We follow tendencies, educate and train our authors, develop software program to optimize our services and keep maintaining a delicate balance between your finest quality and reasonable rates, affordable for most senior high school, college, and university students. Chat with among our various writers and select the one that fits you.

    That’s where these reviews come in. We’ve scrutinised a lot more than 680 academic writing products and services that are available on-line, and ranked them in order of quality here. Incidentally, if your school or school has any requirements considering papers or essays, you can upload them in a separate field – our writers will take into account everything you’ve mentioned right here when focusing on your task.

    Writers choose you & fit on expertise-Stop spending money on a writer’s time. Our prices vary with each academic level because the prerequisites for papers at each level are different. All our gurus are proficient in writing and have a distinctive background which makes them professionals within their chosen disciplines. Just upload your papers to the web proofreader, and in a few moments we’ll have your writing and citing suggestions.

  3. Предлагаем наши профессиональные услуги:
    “Быстрое устранение онлайн-сайтов ваших конкурентов!”
    Каким способом мы это выполняем?!
    – Практический опыт наших специалистов – 10 лет.
    – Уникальная методика.
    – Наращивание большой ссылочной массы вирусными ссылками.
    – Поисковики молниеносно обращают внимание на наши технологии.
    – Все размещенные тексты на веб-сайте спамятся, они становятся неуникальными.
    – У наших экспертов очень серьезные возможности и многолетний практический опыт в данной области.

    Цена 50$
    Полная отчётность.
    Оплата: Киви, Яндекс.Деньги, Bitcoin, Visa, MasterCard…
    Telgrm: @exrumer
    Whatssap: +7(906)53-121-55
    Viber: +7 977 525-54-62

  4. Добрый вечер!
    Готовы предложить лучшие прогоны “киллеры” для сайтов конкурента. Стоимость: от 2 000 рублей.
    – Стопроцентный результат. Интернет-сайты точно “упадут”.
    – Наибольшее число негативных фитбеков.
    – Наша специальная база – выжимка максимально сильных площадок из 10 млн. сайтов (спамных, порно, вирусных и так далее). Это работает бесперебойно.
    – Прогон осуществляем одновременно с 4-х серверов.
    – Непрерывная отправка токсичных ссылок на официальный e-mail.
    – Выполнение заказа на протяжении 40-240 часов. Можем растянуть по времени как угодно.
    – Прогоняем с запретными ключами.
    – При двух заказах – хорошие бонусы.

    Стоимость услуги $50
    Полная отчётность.
    Оплата: Киви, Яндекс.Деньги, Bitcoin, Visa, MasterCard…
    Телегрм: @exrumer
    Whatssap: +7(906)53-121-55

  5. Hi we specialize in website and mobile app development we can create one app and Web to work together seamlessly to achieve full business automation any process full customization
    Email for a free consultation
    Whatsap +15183302082

  6. Do you have a spam issue on this site; I also am a blogger, and
    I was wanting to know your situation; many of us have developed some nice methods and
    we are looking to exchange strategies with other folks, be sure to shoot me
    an e-mail if interested.

  7. What’s up, this weekend is nice designed for me, since this occasion i am reading this enormous educational piece of writing here at my home.

    Here is my homepage … Salvatore

  8. Hey there! I’ve been reading your weblog for
    a while now and finally got the courage to go ahead and give
    you a shout out from New Caney Tx! Just wanted to tell you keep up the good work!

  9. We offer Original Essentiale N Ampoules from Sanofi Aventis.
    Worldwide delivery within 10 days.
    We accept PayPal!

    The active substance of is the so-called essential phospholipids (EPL-substance), which are a highly purified fraction of phosphatidylcholine. The determining component of this fraction is dilinoleoylphosphatidylcholine. Essential phospholipids are similar in their chemical structure to endogenous membrane phospholipids, surpassing them in their functional properties due to their high content of polyunsaturated fatty acids, especially linoleic acid. Phospholipids are the main structural elements of cell membranes and organelle. They take part in differentiation, division and regeneration of cells.

    Please contact us for any details.

  10. After looking over a number of the blog articles on your site,
    I honestly like your way of writing a blog. I saved it to my bookmark webpage list and will be checking back soon. Take a look at my website too and tell me what you think.

  11. Hi there! Do you know if they make any plugins to assist with
    SEO? I’m trying to get my blog to rank for some targeted
    keywords but I’m not seeing very good gains. If you know of any please share.

Leave a Reply

Your email address will not be published. Required fields are marked *