How to speed up your research

Posted in Applications

LabSat 3 allows you to see how your GPS device would actually operate in the field without moving from your test bench or lecture hall.

Read on to find out how record and replay technology could assist your research and teaching, and how to choose the best system for your needs.

25percent

LabSat Prices - up to 25% Discount for Education

With prices starting from €4,050 LabSat is the most affordable GNSS RF recorder and replayer available. Discounts of up to 25% are available for educational establishments. Ask us.

What is GPS record and replay?

Replay deviceGPS record and replay allows you to record GPS data from a live antenna and replay it later. This allows you to gather the raw data once, and then replay it into devices under test for research or teaching an unlimited number of times, showing the actual behaviour of the GPS device in the field. You could show how a system would operate in New York's Times Square whilst sitting in a research lab in Cambridge.

Recording external data

Many GPS applications also integrate with other technologies to improve quality in heavily built up areas. However, researching and testing combined GPS and external data is complex and time consuming.

Therefore, it's important to be able to record and replay external data. LabSat conversion modules are available for analogue, CAN, Dual CAN, RS232, and serial streams, to record external data perfectly synchronised with the GPS data.

Testing your systems in remote locations

Apart from replaying real world data, it is sometimes useful to test your application using artificially generated data.

Racelogic's SatGen software creates static or dynamic scenarios anywhere in the world. It allows you to create a data file which can be replayed on a LabSat and means you can simulate almost any kind of test anytime and anywhere.

SatGenv2 KLM Screen

Why was GPS Record and Replay developed?

For Racelogic, designers of high accuracy GPS data loggers for automotive testing and motorsport, demands for more and more accuracy meant they needed to continually improve the test methods they used to develop their products.

There were three options that could be used to test GPS devices:

  • Live sky ...
    Testing equipment in the field was useful for obtaining real world data, but the dynamic nature of satellite constellations meant tests were time intensive and not repeatable.
  • GPS Simulation...
    Modelling satellite signals, whilst useful in some applications, was expensive and didn't reproduce real conditions.
  • Design something more suitable...
    Something that could record live GNSS signals and replay these into devices under test, offering the blend of realism and repeatability that they needed at an affordable price.

So, in 2008 LabSat was developed, with the ability to record raw GPS RF signals from a live antenna to be replayed at a later date. Users could now easily record a journey and replay this on the bench with identical results.

Racelogic then added the ability to create a scenario from scratch, and soon had five units in constant use. From the positive feedback of their R&D engineers, it was clear that LabSat could be helpful to other companies developing GPS products, at a lower cost than anything else available.

LabSat is now used in several industries, spanning mobile phones, defence, automotive electronics, education, and research institutions. For example, Samsung, Intel, CISR and Broadcom use LabSat for testing smart phone technology; Mercedes Benz, Bosch and Continental use it to test in-car navigation solutions whilst Northropp Grumman (makers of the B-2 Stealth bomber) and BAE systems use LabSat to test the latest defence technology.

LabSat customers 3

LabSat customers 1

25percentLabSat Prices - up to 25% Discount for Education

With prices starting from €4,050 LabSat is the most affordable GNSS RF recorder and replayer available. Discounts of up to 25% are available for educational establishments. Ask us.