EVM-GNSS-TM

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RF Evaluation and Development Kits, Boards encompass a variety of devices designed to provide engineers with the necessary tools to evaluate and develop RF systems. EVM-GNSS-TM is one such tool, used for the evaluation and development of Global Navigation Satellite Systems (GNSS) receivers. This system is designed to facilitate the simulation of the entire GNSS signal chain from satellites to receiver antennas and allow the user to evaluate, compare and develop GNSS receivers. This article will outline the application fields and working principle of EVM-GNSS-TM.

EVM-GNSS-TM is versatile in its application fields and can be used for several point evaluations, comparison studies and system-level simulations. It can be used to assess a single GNSS receiver’s accuracy, both in terms of capture and tracking performance, propagated error, positioning accuracy and so on. It can also be used to compare GNSS receivers from different manufacturers and analyze the parameters of the complete GNSS signal chain for an optimal implementation. It can also be used to simulate multiple GNSS receiver systems for system-level studies and diagnostics. EVM-GNSS-TM is highly capable and is highly suitable for use in multiple challenging and complex GNSS projects, such as those requiring time synchronization and coordination analysis.

The working principle of EVM-GNSS-TM is relatively simple and straightforward. At its most basic level, the system consists of a signal source, a baseband signal processor, and a receiver. The signal source is typically a radio front-end, such as an in-house signal generator that provides a global coverage with simultaneous reception of multiple GNSS signals. It is designed to provide the signals with an adjustable signal power level and jitter characteristics across the frequency bands for GNSS signals such as GPS, iBeacon, GLONASS and Galileo. This allows users to set jitter or signal attenuation to certain levels that can test different GNSS receivers.

The baseband signal processor acts as the software receiver and passes the raw signal to the GNSS receiver. The GNSS receiver is used to acquire and track the signals, and the baseband signal processor can then access its performance characteristics. The signal processor provides accurate propagation and path profiles for testing receiver’s multipath mitigation and tracking performance. It also provides data on power levels, jitter, and other related data about the receiver’s performance.

EVM-GNSS-TM provides users with powerful features to facilitate the evaluation of GNSS receivers. The system offers jitter and signal attenuation control, statistical evaluation, and software simulations of signals and receivers. It is also capable of demonstrating the impact of multipath reflectors, multipath interference and ionospheric scintillation on the performance of GNSS receivers. Overall, the system is highly capable and user friendly, allowing users to easily evaluate and develop GNSS receivers.

In conclusion, EVM-GNSS-TM is a comprehensive tool used to evaluate and develop GNSS receivers. It is highly versatile, covering multiple applications, including point evaluations, comparison studies, and system-level simulations. Its simple yet powerful functionality allows users to easily assess and develop GNSS receivers, while its advanced capabilities allow users to evaluate the performance of GNSS receivers in multiple challenging conditions. With its comprehensive range of features, EVM-GNSS-TM is an invaluable tool for any GNSS project.

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