Glossary

Baseline is the distance between a rover and a base. If the baseline is bigger than recommended, the solution will be less accurate, the fix time will be longer or it won't be calculated at all.

BeiDou is the chinese satellite navigation system, and is deployed globally.

If you are looking for millimeter accuracy, a calibration file allows you to upload to the receiver or your processing tool, the exact measurement point inside the antenna.

A latitude and longitude can be provided in different coordinate systems. When comparing measurements with centimeter accuracy, it is important to compare them using the same coordinate system.

Continuously Operating Reference Stations (CORS) is the word to define a calibrated network of base stations

Galileo is the european satellite navigation system, and is deployed globally

Geographic Information System (GIS) is a system for collecting, storing, analyzing, and graphically visualizing spatial data and related information about required objects

GLONASS is the russian satellite navigation system, and is deployed globally

Global Navigation Satellite System, it's the technical word to refer to all satellite navigation systems together: GPS, Galileo, Glonass, Beidou, etc

Headers on ArduSimple boards are connectors that allow the board to be attached to other devices like Arduino, STM32, Raspberry Pi, or custom PCBs for expanded functionality. If you plan to use the board with these devices, choose the option with headers soldered; otherwise, for USB or Pixhawk interface use, headers are not required.

Mock location feature of Android devices enables you to manually change the location of your device to any other place. In the case of ArduSimple devices, it enables the GPS collector apps to get the GPS observations directly from the external receiver instead of the internal GPS of the unit

It's one of the possible sources of errors in GPS receivers. Multipath is when you receive the same signal directly, or reflected by a for example a building. This affects the accuracy of your GPS receiver.

It's a standard language or protocol to exchange location data between a GPS receiver and a computer

It's a standard language or protocol to exchange correction data over internet

It's how we call one of the USB connectors in our boards, because it provides power and it gives you access to the GPS at the same time.

It's how we call one of the USB connectors in our boards, because it provides power and it gives you access to the XBee socket at the same time.

PPK stands for Post-Processed Kinematics. You can calculate a GPS position realtime, or store only satellite data to later postprocess (PPK) the positions.

QZSS is the japanese satellite navigation system, and is only deployed over Japan

RINEX is a standard format to store raw satellite measurements without position information

It's a standard language or protocol to exchange GNSS correction data

RTKLIB is an open-source set of tools for GNSS applications. It's very popular as free tool for PPK postprocessing

Timepulse is a precise, programmable signal output that marks a specific time interval, synchronized with the GNSS time standard. It provides a consistent pulse at set intervals, useful for timing synchronization across various systems and device

If your phone has OTG, you can connect and power external GPS via USB. OTG is a functionality quite common in nowadays phones.In the past the USB on the phone could only be used to charge and to connect it to your PC. With newer phones, it is not possible to connect USB peripherals (like Read More