Satellite navigation software

Satellite navigation software or GNSS navigation software a category of software that provide positioning services by utilizing data from satellite navigation systems.

Key functions of satellite navigation software usually includes:

  1. Positioning: determines the device's precise location using signals from multiple satellites
  2. Route planning: calculates optimized route based on user needs, such as starting point, destination, and travelling mean, et cetera. This functionality could be extended to driving assistent.
  3. Tracking: shows where the tracked object have been. (This functionality relies past positioning data to be stored, so not just the "software" technically).

Additional functions that extends the capabilities of satellite navigation software includes:

  1. Searching: finds locations with addresses or GNSS coordinates (latitude and longitude).
  2. Traffic updates: shows real-time traffic information, enabling the software to suggest a better route during driving.
  3. Offline map: allows regions of map to be pre-downloaded, enabling usage with minimal connectivity.
  4. Bookmarking: saves locations for later use.

Requirement

See also: GPS navigation device

Hardware-wise, a GNSS receiver is needed to interpret satellite signals and compute the user’s location. Nowadays, it is usually a single integrated circuit (IC).

Satellite navigation software is most commonly used on mobile devices, particularly mobile phones, to provide the positioning functionality. However, relying exclusively on GNSS data is not accurate enough due to the limitations of GNSS services, To address this, Assisted GNSS (A-GNSS) is used instead. By leveraging data from nearby cellular towers, Wi-Fi, and Bluetooth connections, A-GNSS enhances accuracy, reduces power consumption, lowers the risk of signal blockage, and effectively mitigates the limitations of GNSS.[1]

Software products

See also: Comparison of satellite navigation software

There are many navigation software products available. The primary distinction is whether it is designed for use on land, water or air.[2] Below is a short-listed software products:

Land-based

Free and open source

Proprietary (available for free)

Commercial

Marine navigation software

Navigation software for use on the water has many features in common with land-based GNSS navigation software. It can use electronic navigation chart or raster charts, usually provides user ability to plan routes and set waypoints, and may have live GPS tracking capabilities. In addition, marine navigation software often has option to control external autopilot for automated boat navigation. It may incorporate GRIB weather overlay on the chart, Tide predictions and other related information services of additional use to mariners.

Free and open source

Aeronautical navigation software

This kind of software usually creates a modern glass cockpit and uses more than just a single GNSS sensor to assist the navigation. Such sensors are Attitude and Heading Reference Systems (AHRS) and Inertial Measurement Unit (IMU) sensors.

See also

References

  1. ^ Han, Kahee; Lee, Jung-Hoon; Im, Ji-Ung; Won, Jong-Hoon (15 December 2018). "A-GNSS Performance Test in Various Urban Environments by Using a Commercial Low Cost GNSS Receiver and Service".{{cite web}}: CS1 maint: url-status (link)
  2. ^ https://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/gps/usersegments/aviation
  3. ^ "TECH TALK: Local company takes on Google Maps". 28 June 2020.

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