GPS Testing Applications

The automotive environment represents an extreme challenge for satellite navigation systems. High user demands conflict with complex signal environments and the need for low cost systems. GPS positioning is typically supplemented by additional inertial or dead reckoning sensors to improve performance.

Thorough testing and certification is a key requirement in aviation related technology. Controlled laboratory testing is repeatable and controlled, as well as being less costly than live flight trials. Lab testing also enables testing in extreme and error conditions that is not readily achieved in flight trials.

Spirent Federal Systems serves the needs of U.S. Government with its market-leading GPS and GNSS test solutions. Its GPS test systems are tailored to the needs of government customers, including support for encrypted military codes, interference simulation and high dynamic testing. Spirent Federal was initially created to focus on the needs of U.S. Government customers and has a purchasing contract with the General Services Administration (GSA).

Integration and Verification testing presents the system developer with a range of test challenges. Exploring the performance envelope of a design requires flexible control of a wide range of parameters. Comparative testing used during regression testing or vendor evaluation requires the ability to exactly repeat a predetermined set of test conditions.

GNSS technology and its applications are rapidly expanding. New and improved GPS, Galileo, GLONASS, QZSS, Compass and augmentation systems such as WAAS, LAAS, EGNOS and MSAS will add to the mix of available signals. A significant amount of research and development is currently underway by the technology and applications development community to respond to this expansion in capabilities.

Production and acceptance testing demands a repeatable and consistent test environment. Our simulators are used across the country at military and commercial production facilities for verification that their products meet their requirements when delivered to the end user. Supporting everything from cell phones to spacecraft, our simulators meet an array of demanding production requirements.

GNSS receiver development and optimization is a complex process. Control over a repeatable test environment is key for meaningful, effective and efficient GNSS research and development. A GNSS signal simulator provides ultimate flexibility and repeatability, shortening development cycles significantly. In addition, lab-based testing allows new and future GNSS (eg. Galileo, QZSS, Compass) signals to be tested in advance of system deployments.

Many spacecraft rely on Global Navigation Satellite Systems (GNSS) as a key element of positioning and attitude determination. In a space environment, trial and error testing is not an option. Simulation and test of spacecraft GNSS components (typically GPS, Galileo and SBAS receivers) is a key element of design and qualification for all space projects.

Spirent is the first choice of major manufacturers, integrators, test facilities and government agencies

   Spirent is the first choice of major manufacturers,
   integrators, test facilities and government agencies

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