The Indian Regional Navigation Satellite System (IRNSS), operationally known as NavIC, is an independent navigation system designed to reduce India's dependence on foreign systems like GPS. It consists of seven satellites providing dual-frequency services, offering a standard positioning service for civilians with an accuracy of up to 20 meters and a restricted service for military use. IRNSS positions India within a select group of nations with their navigation systems and has potential for future expansion to enhance global coverage.

1. ORIENTAL COLLEGE OF TECHNOLOGY
BHOPAL (M.P.)
SUBMITTED TO : SUBMITTED BY :
PROF. KEERTI VERMA UTKARSH GANGWAR
0126cs161117
CSE-B, II SEMESTER
Indian Regional Navigation Satellite
System (IRNSS)

2. IRNSS is an independent regional
navigation satellite system
developed by India with an
operational name of NAVIC ("sailor"
or "navigator" in Sanskrit, Hindi and
many other Indian languages), which
also stands for ”NAVigation
with Indian Constellation”.

3. Reduce dependency on foreign owned
navigational systems like GPS (owned by US
Govt) or GLONASS (owned by Russia) during
times of conflicts esp. wars.

4. Space Segment
User Segment Ground Segment

5. SEVEN SATELLITES :
1. IRNSS-1A – launched on 1-july-2013
2. IRNSS-1B
3. IRNSS-1C
4. IRNSS-1D
5. IRNSS-1E
6. IRNSS-1F
7. IRNSS-1G – launched on 28-april-2016

7. IRNSS Space Craft Control Centre (SCC)
IRNSS Navigation Centre (INC)
FUNCTIONS:
Estimating & Predicting IRNSS Satellite positions.
Calculation of integrity
Ionospheric & Clock corrections
Running the navigation software

8. IRNSS receivers.
DUAL-FREQUENCY:- L5 band: (1164 – 1189) MHz
central freq: 1176.45 MHz
S band: (2483.5 - 2500) MHz
central freq: 2492.028 MHz
SINGLE-FREQUENCY:- either L5 band or S band
These receivers are currently being manufactured and
Will be available soon.

9. Standard Positioning Service (SPS):
 will be accessible to civilians.
 will have an accuracy of upto 20m.
Restricted Service (RS):
 will be strongly encripted and available only
to the military and other government
authorized users.
Both services will be carried on L5 & S band.

10. Cell phone apps- for mapping, driving, hiking in
jungle and in remote areas
Forest department- putting out wildfires, tracking
endangered species
During WAR- naval fleet management, missile
navigation etc.
Fleet management e.g. Taxi or truck companies can
monitor their vehicles.
Disaster management

11. GPS IRNSS
First launch: 1973 First launch: 2013
Owned by: US Govt. Owned by: Govt. Of India
Satellites: 24 Satellites: 7
Orbital Height: 20,000 km Orbital Height: 36000 km
(Medium Earth Orbit) (Geostationary Earth Orbit)
Range: covers entire globe Range: India & ~1500km
around Indian landmass

12. CONCLUSION &
FUTURE PROSPECTS
 With IRNSS India has placed itself in the prestigious
league of countries having their own Satellite navigation
system and has proved the mettle of its advanced
technology.
 In future, more satellites can be added to increase
coverage so much so that covering the entire globe- just
like GPS.