The GRANADA Factored Correlator Model (FCM) Blockset is a Simulink
library that provides a swift, flexible, and realistic way of
simulating different signal processing architectures, either of
standalone GNSS receivers or multi-system solutions. It is directed to
a wide variety of users – from industry to research – who require
simulation speed as well as to access and control internal receiver
signals and model system interactions. Based on an analytical model of
a GNSS receiver's correlator outputs, it precludes the need for the
simulation of low-level signal processing stages, therefore allowing a
great increase in simulation speed while still accounting for
correlation losses due to different effects. The GRANADA FCM Blockset
includes a reference generator, numerous GNSS receiver components, and
other utilities to be used with the FCM module, allowing a fast and
easy setup of a GNSS receiver's tracking loops. |
Fast GNSS receiver simulation
Allowing near real-time simulation of correlator outputs, the GRANADA
FCM is the smart choice for the early stages of receiver architecture
design and test and for the fast simulation of standalone or hybrid
systems where intersystem coupling must be considered.
Realistic modelling
The GRANADA FCM
accounts for correlation losses due to carrier phase
and frequency errors, code phase error and code Doppler. The model was
validated using theoretical and GRANADA Bit-True results, highlighting
its reliability and accuracy. It allows the simultaneous simulation of
multiple receiver channels with different (and dynamically varying) C/N0.
|
| 
|
 |
| Flexibility
Access to deep receiver signals (I and Q measurements) provides the
necessary freedom to design novel algorithms for signal tracking, lock
detection, noise level estimation, etc., as well as to develop new
receiver architectures for single or multi-system devices. Each effect
may be included or not, varying the model’s accuracy and allowing the
analysis of particular parts of the receiver architecture independently.
|
Graphical user interface
The Simulink graphical user interface allows an
intuitive and functional organisation of the different components, easy
access to internal signals, and visualisation tools.ox and Signal Processing
Blockset.
Requirements
- Single
PC under Windows: Pentium IV with 512 Mbytes of RAM or higher.
- MATLAB/Simulink, with Signal Processing Toolbox and Signal Processing Blockset.
|
|
