Scientific and industrial applications of GNSS signals and data usually require non-standard features of the receiver. Access to intermediate and raw signals is not possible in mass-market receivers, and professional equipment is costly and often is a ‘black box’ that does not offer exact information about how signals are being processed.  For mass market support, now all the processing is done in ASICs which is less flexible and one cannot change the implementation of a certain functional block and assess the impact and tradeoffs in the whole receiver performance. Catering to these special needs, our core team has developed GPS Satellite Simulator (GPS – Gyan) and is working on a complete SDR based GPS Receiver.

YES offers Software Defined Radio implementation for GNSS system – both receiver and transmitter (simulator and Psuedolites). GNSS SDR has multi-phase advantages including design flexibility, faster adaptability, faster time-to-market, and easy optimization at any algorithm stage. As a result, it is emerging as an important technology in both commercial and military applications. With GNSS SDRs embedded into a single microprocessor or DSP in a software form and use of FPGA to do high speed signal parallel signal processing, GNSS SDR brings an optimum solution for design and development, further helping to narrow down design for specific purpose and unique requirements.

We offer Model based System Engineering approach to GNSS SDR. GNSS based SDR requires a well-organized architecture in both hardware and software.  We are inclined to use MBSE to design and develop GNSS development platform. GNSS SDR is based on Object Orient System Design and modeling framework (OOSDM^TM) which is our in-house developed framework to support Model Based System Engineering (MBSE). This provide easy expandability to our base system with

• Ability to Add Noise Models/Generators
• Ability to integrate with inertial sensors (Accelerometer and Gyroscope)
• Ability to adopt for other GNSS Systems (GLONASS, IRNSS, QZNSS)