FAQ


GLOBAL POSITIONING SYSTEM
The Global positioning system(GPS) is the satellite navigation system. Global positioning system consists of three parts that includes satellites, receivers and ground stations. The Global positioning system(GPS) is used for providing the information about time and location. All three parts of a Global positioning system works in such a manner to provide the information regarding time and location.
satellites work as the stars in the orbit at a particular time and ground stations supposed to be in radar at a particular location and the receiver receives the signals from the satellites, the receiver analyses all the information or signals that provided by these satellites and hence describe your exact location.

The global positioning system is very useful to military, civil and commercial users around the world. It is freely obtain able to anyone with a GPS receiver. Global positioning system works in any weather condition, anywhere in the world, 24 hours a day. GPS is global positioning system, it is receiver-based technology. Till date there are around 30 satellites used for Global positioning system. Each satellite transmits in a broadcasting manner (they do not interfere because of pseudo noise random sequences used in each satellite). Handset which is equipped with GPS receiver receives the signal from at least 3 satellites to find the location. Triangulation is the method it uses to find the geographical location of the handset. It finds the intersections of these 3 satellites, i.e., intersection of 3 circles formed by these satellites.
The Global positioning system consists of three major parts which coordinate with one another to bring forth the relevant information whenever needed. The three parts include:
1. GPS satellites that orbit at an altitude of 20,000 kilometers above the surface of the earth.
2. GPS control and monitoring stations.
3. Individual GPS receivers
Overall global positioning system is an amazing and useful technology to determine the actual location of any object or vehicles in all-weather condition.


HISTORY OF GPS

GPS (GLOBAL POSITIONING SYSTEM) is the system which having the network of satellites that orbit the earth at fixed points above the earth planet and send signals on the earth to GPS receiver. GPS receiver receives the signals and analyses them to determine the exact location, speed and time of the user anywhere on the earth planet in all-weather condition. GPS, originally designed for intelligence and military operations/ applications at the height of the cold war in the 1960s.Transit was the first satellite system launched by the USA and tested by the Navy of US (US Navy) in 1960. It was the group of five satellites orbiting the earth and the ships was allowed to check or fix their position once in hour. In 1967 another Satellite was launched that was Timation satellite, which demonstrated that highly accurate atomic clocks could be operated in space. GPS was developed for military purposes. After the Timation a total 11 satellites being launched between 1978 and 1985. After 1985, upgrading in GPS needed but Upgrading the GPS was delayed by the NASA space shuttle (SS) Challenger disaster in 1986 and it was not done until 1989, and then first Block II satellites were launched. In 1993, the US launched had their 24th Navstar satellite into orbit, which completed the modern GPS constellation of satellites. network of 24 - familiar now as the Global Positioning System, or GPS. The 24-satellite system became fully operational in 1993. Today's the GPS network has around 30 active satellites in the GPS constellation these satellites make GPS more effective and useful. Today, GPS is used for many uses like navigation applications, give direction for driver, map-making, earthquake research, climate studies etc. Today, GPS is a multi-use, space-based radio navigation system. This system is owned by the US Government. GPS is operated by the United States (US) Air Force to the national defense, homeland security, civil, commercial, and scientific needs. GPS is the very useful and effective system which currently providing two levels of service, first is Standard Positioning Service (SPS) which uses the coarse acquisition (C/A) code on the L1 frequency, and the second one is Precise Positioning Service (PPS) which uses the P(Y) code on both the L1 and L2 frequencies. Access to the PPS (precise positioning service) is restricted only use to US Armed Forces, US Federal agencies, and selected allied armed forces and governments. But the SPS (standard positioning service) is available to all users from the world. GPS is becoming more popular in today’s world, GPS have many features and uses which make them GPS is very effective and useful. India have also invented their own GPS and becoming the fifth country which have their own GPS. Apart from India, United States have GPS (Global positioning System), Russia have their GLONASS, Europe have Galileo and China have also their own GPS named as BeiDou as the navigational systems. where in gps tracking system, gps tracking solutions?
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What is Indian GPS ?

Indian GPS is the navigational system of India, it is called as IRNSS or NAVIC. This technology was invented to reduce the dependencies on the other country and collect information about time and location without any irruption even in war like situation. In 2016, Indian space agency “ISRO” (Indian space research organization), launched the satellite IRNSS-G1 with the help of PSLV-C33 Polar Satellite Launch Vehicle. With IRNSS-G1, India will now have a total of seven satellites. These satellites will help the Indian scientists to build a strong navigational network. Indian GPS is authoritatively called the IRNSS or NAVIC as it suggested by Prime Minister Narendra Modi after the launch of the IRNSS-G1 satellite. IRNSS stands for Indian regional Navigation Satellite System and NAVIC stands for Navigation Indian constellation. The NAVIC system will consist of a total of 9 satellites. Seven in the orbit and two on the ground as stand-by.


How it will be used?

The NAVIC is very useful navigational system which will work in many sectors. The satellite will be used for terrestrial navigation for military and travelers with different accuracies and applications. It will also help the India in the defense region to monitor the marine and the aerial space. Other usages are disaster management and mobile navigation. The Indian navigational system NAVIC provides positional accuracy of 10 meters. For civilian usage, more manufacturers have to start making the navigation signal receivers at a very affordable price. These receivers called GPS Tracker or GPS tracking devices.


cost of the project

The NAVIC system is very economical project, Each satellite of the system costs about Rs 150 crores and each PSLV-XL rocket of the system costs about Rs 130 crores. So, the total costs of the satellites and rockets would Rs 1050 crores and Rs 910 crores respectively. ISRO said that the other facilities and total project cost is Rs 1420 crores. Indian scientists tried very hard to keep this project very economical. This system will also help the India in economic growth.


How is India going in a global context ?

GIndia becomes only the fifth entity to have their own GPS system. United states have Global Positioning System (GPS), Europe have their Galileo, Russia has GLONASS, and China has also BeiDou as their navigational systems. NAVIC system is very useful system and it will reduce the dependencies on the other systems for the country. This system has very accuracy and provide information even in a war-like situation there would be no interruption of the information. India has been making great impact in space and research fields. IRNSS GPS would definitely boost the country’s credentials in this field.

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