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Difference between GPS and GPRS
2022-09-21 02:13:43

Difference between GPS and GPRS

GPS (Global Positioning System)

A locating system based on satellites is called GPS (Global Positioning System). Satellites are used by the GPS network to pinpoint an object's exact location on the planet. A constellation of 24 operating satellites plus a few spare ones are used to make up the GPS network. These satellites each require 11 hours and 58 minutes to complete an orbit around the planet at a height of over 20,180 kilometres.

In GPS, the satellites are placed so that the receiver should have a straight line of sight to at least four satellites from practically anyplace on the surface of the world. This is important because trilateration, the process by which three location coordinates and the clock deviation are calculated using at least four satellites, is necessary for GPS point placement.

When a GPS navigator receives insufficient data, the trilateration procedure can occasionally fail because of the ionosphere and troposphere, which slow down the signal's speed. Instead of providing the inaccurate information in that case, the GPS system warns the user of the failure.

As receivers, GPS systems can send and receiving signals, just like a mobile phone. An very accurate timestamp is part of the navigational signal that each GPS satellite sends to the earth (obtained through atomic clocks available in satellites).All GPS signals broadcast in 1.57542 GHz (L1 Signals) and 1.2276 GHz, and the satellites also broadcast their position now of transmission (L2 Signals). With all the satellites delivering accurate time to earth, you may use these two pieces of information to pinpoint your location on the planet. The GPS receiver may calculate the distance between you by comparing the time interval between the signal's transmission and reception.

Main Components of GPS

  • Space Segment: The satellites orbiting the planet are included in the space segment.
  • Control Segment: The stations positioned on the equator of the globe to control the satellites are included in the control section.
  • User Segment: This segment consists of an individual or group that receives and makes use of GPS signals.

GPRS (General Packet Radio System)

The most widely used second-generation cellular technology that offers high-speed data services is General Packet Radio System (GPRS). GPRS is an improved version of the 2G GSM network and is sometimes referred to as 2.5 Generation of Mobile and Telecommunication. While GSM utilises circuit switching, GPRS uses packet switching to enable data services to be transmitted and received over the network.

However, after GPRS, other technologies and generations have emerged. Additionally, GPRS uses the most recent channel coding and timeslot bundling methods. An Internet protocol (IP)-based main architecture is utilised in wireless packet data networks to deliver integrated speech and data applications.

Qualities of GPRS

  • By merging GSM time slots, the connection's speed which ranges from 56 to 118 Kbps is increased.
  • It provides always-on connectivity without consuming data continuously and does away with the sluggish dial-up process.
  • It permits full internet functionality, including video conferencing.
  • Mobility involves maintaining continuous voice and data contact even when the user is on the move.
  • It provides immediate service; regardless of location, the user can connect right away.

Important Features of GPS and GPRS

  • Wireless packet data networks use an Internet protocol (IP)-based primary architecture to enable integrated speech and data applications.On the other hand, GPRS, an improved version of GSM, offers cellular systems fast data rates.
  • 24 satellites in a constellation that orbits the earth are used by GPS to determine the location. The GPRS, on the other hand, communicates using terrestrial towers.
  • GPRS only needs one station to function, whereas GPS needs three.
  • Due to the high cost of the satellites utilised, GPS is quite expensive. In contrast, the GPRS is inexpensive.
  • Because of its short range and need for installed BSTs (Base Transceiver Systems), GPRS is only effective on land. The GPS system, in comparison, has a wider coverage area and can function well even in water and the air.

Key Differences between GPS and GPRS

Although the names GPS and GPRS appear to be identical, they differ in meaning. The key distinction between GPS and GPRS is that one is utilised for cellular-based data services, whereas the other is a satellite-based navigation system.

A wide range of applications, including satellite operation, surveying and mapping, the power grid, telecom, intelligent cars, precision agriculture, etc., are made possible by GPS. However, GPRS can be used to access email, send multimedia messages, make video calls, etc.