matlab-generate-gnss-waveform

What problem does it solve?

This Skill generates multi-satellite GNSS baseband waveforms with physically realistic channel impairments and correctly encoded navigation data, so downstream receiver testing can rely on valid MATLAB signal-and-ephemeris consistency instead of placeholders.

Core Features & Use Cases

• Scenario-driven or custom channel impairments: Computes Doppler shift and propagation delay from a satelliteScenario, or applies user-specified Doppler/delay/SNR values.
• Constellation and signal coverage: GPS (L1 C/A, L1C, L2C, L5), Galileo (E1, E1C, E5a, E5b, E5), and NavIC (L5, S, L1 as supported for the selected workflow).
• Navigation data encoding: Produces waveforms carrying real ephemeris for end-to-end receiver position estimation, including RINEX-first workflows and Galileo E5 wideband cell-based nav input.
• Output ready for channel simulation: Uses HelperGNSSChannel with stepped updates so SNR, Doppler, and delay match the time-varying channel.

Quick Start

Generate a 1- to 2-second GPS L1 C/A waveform at 5 MHz using a satellite scenario with the bundled GPS almanac, apply realistic Doppler/delay/SNR from orbital dynamics, and encode real navigation data for position-estimation testing.