The GPS Inertial Data Simulator (GIDS)

Purpose

The GPS Inertial Data Simulator (GIDS) is a dynamic testing tool for systems using imbedded Inertial Navigation Systems (INS) or GPS. It is a low-cost, simulation-based alternative to physical testing that requires the actual movement of the system under test.

GIDS is a hardware device that simulates the dynamic motion of the GPS and INS, generates the required data streams (in real time) and provides the data to the system under test. As a result, the test system believes it is moving in three dimensional space.   

Features

Real-time, GPS/Inertial Measurement Unit (IMU) simulator

Configurable output data stream

Use for dynamic GPS/IMU system checkout on the bench

Configuration, control and monitoring via standard internet browser

User defined flight profiles can be varied, or repeated indefinitel

Data provided on multiple interfaces including serial, Ethernet, ARINC 429 or Mil Standard 1553

Message structure tailored to the user’s requirements, e.g., NovAtel GPS serial messages

System Description

Software hosted on Ampro Ready System ATX computer (11x7.9x4.5 inches, 115 VAC power)

QNX Operating System configured for remote login for software service and upgrades

Uses internal processor clock, or built in GPS receiver for real-time synchronization

Uses internal processor clock, or built in GPS receiver for real-time synchronization

Different interfaces provided via PC-104 cards

Accuracy

GPS position and velocity exactly synchronized with IPPS pulse and IMU delta Vs and delta Thetas

The GIDS Family