Nav3D simulation software for satellite occlusion and multipath effects in complex environments

The Nav3D simulation software for satellite occlusion and multipath effects in complex environments is based on real-world modeling and simulation scenarios, simulating the propagation effects of GNSS signals in specific environments. We have independently developed a complex geometric and physical editor that uses the creation of 3D synthetic environments or real 3D maps, combined with ray tracing technology, to calculate and analyze the propagation path of GNSS signals in complex environments. It is the first in China, Benchmark similar Sim3D simulation software products from abroad.

During Nav3D simulation, satellite navigation signals will interact with the real 3D environment, simulating the real signal path, and controlling the simulator to output realistic RF signals. The actual output signal includes the shielding of the street, Viaduct, canyon and other surrounding environments from the satellite direct signal; One or multiple reflections from the ground, trees, buildings, mountains, canyons, and other factors on the satellite, including reflection angle, area, and reflection coefficient, are simulated to simulate the power attenuation and delay of possible multipath signals. The relevant signals can better meet the requirements for signal occlusion and multipath effects in high-precision and anti-interference testing.