Roysdon Signal Generator

Overview

The Roysdon Nav - Signal Generator is a state-of-the-art, high-accuracy MATLAB toolbox for generating realistic trajectories and corresponding sensor outputs for aerial and ground vehicles. It is designed to rigorously evaluate navigation systems, autopilots, and real-time estimation algorithms under controlled, repeatable, and physically realistic conditions. This is not a toy waveform generator. It is a full physics-based trajectory and sensor simulation environment, verified against industry best-in-class commercial signal generators used in tactical and aviation-grade testing. Full and complete documentation and tutorials are provided.

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What It Does

The Signal Generator enables engineers to:

• Generate realistic 2D and 3D trajectories for cars, drones, and fighter aircraft

• Simulate high-fidelity sensor outputs driven directly by those trajectories

• Inject realistic sensor errors, failures, biases, and dropouts

• Produce reproducible datasets for:

  • Autopilot development

  • GNSS/INS navigation

  • Sensor fusion

  • Algorithm verification and Monte-Carlo testing

All outputs are designed to mirror real sensor behavior at the data-rate, error-model, and physics level required for serious engineering work.

Industry-Verified Accuracy

The Signal Generator’s outputs were directly verified against commercial off-the-shelf signal generators from NavLabs, using identical trajectories and configurations.

This verification ensures:

• Sensor statistics match industry reference tools

• Error growth and dynamics behave correctly

• Generated data is suitable for algorithm validation, not just visualization

This makes the toolbox appropriate for aerospace, autonomy, defense, and research programs where credibility matters.

Physics-Based Trajectory Simulation

Supported Vehicle Models

• Ground vehicles (2D kinematics)

• Aerial vehicles (full 3D kinematics)

• High-performance aircraft (F-16)

  • Includes a full autopilot feedback control system

  • Produces smooth, realistic 6-DOF maneuvering trajectories

Trajectory definitions are modular and extensible, allowing users to add new vehicle types or mission profiles with minimal effort.

High-Fidelity Sensor Models

Each sensor model is designed to be easily tuned to match manufacturer datasheets and real hardware.

Supported Sensors

• IMU

  • 3-axis accelerometers

  • 3-axis gyroscopes

• GNSS / GPS

  • L1 & L2

  • Rover and base-station configurations

  • Full XYZ positioning

• Magnetometer

  • 3-axis

• Air Data

  • Static pressure

  • Dynamic pressure

  • Temperature and humidity

• Altimeters

  • Radar

  • Ultrasonic

  • LiDAR

• Rangefinders

  • Radar

  • Ultrasonic

  • LiDAR

• Wheel Encoders

• Signals of Opportunity

  • Opportunistic positioning in X/Y/Z

Realistic Error Modeling & Failures

Every sensor supports engineering-grade realism, including:

• Configurable data rates

• Biases and scale-factor errors

• White noise and random walks

• Cross-axis coupling

• Clock stability (ppm)

• Dropouts and spikes

• Validity intervals

• Environmental effects (EGM96, sea state, terrain)

This allows engineers to stress test algorithms exactly as they will fail in the real world.

Designed for Engineers

Simple Operation

• One-click execution via MAIN_SignalGen.m

• Centralized configuration through CONFIG_SignalGen.m

• Sensible defaults for immediate use

• Fully transparent MATLAB implementation

Extensible Architecture

• Add new trajectories via preDef_trajectory.m

• Add new sensors via dedicated model files

• Clean variable naming consistent with academic and industry literature

• Clear reference-frame conventions (ECEF, NED, ECI)

Output & Results

The Signal Generator automatically:

• Generates trajectories

• Runs all enabled sensor models

• Plots results

• Saves all outputs (.mat, .fig, .jpg, .doc) to a structured data directory

This makes it ideal for:

• Batch testing

• Monte-Carlo analysis

• Regression testing

• Publication-quality figures

Typical Use Cases

• Autopilot verification

• GNSS/INS navigation system development

• Kalman filter and Bayesian estimator testing

• Sensor fusion validation

• Ground-truth data generation

• Algorithm benchmarking

• Research and academic publications

Why This Tool Exists

Most teams either:

• Rely on expensive hardware signal generators with limited transparency, or

• Build ad-hoc simulators that lack realism and validation

The Roysdon Nav Signal Generator fills the gap:

• Software-defined

• Physically accurate

• Industry-verified

• Fully inspectable and extensible

It gives engineers control, credibility, and confidence.

Key Advantage

Roysdon LLC delivers production-grade aerospace, navigation, and AI toolchains that collapse years of R&D into immediately deployable engineering systems.

Unlike academic frameworks or vendor-locked platforms, these toolboxes are:

• Built from real aircraft, navigation, and embedded deployments

• Fully inspectable and extensible

• Designed for mission-critical environments

This software directly replaces:

• Fragmented internal toolchains

• Years of bespoke estimator and simulator development

• Vendor-locked black-box solutions

Competitive Advantage

• End-to-end coverage: theory → simulation → real-time systems

• Proven mathematical rigor

• Field-tested architectures

• No dependency on proprietary runtimes

• Suitable for air-gapped and classified environments

Pricing Tiers

Email roysdonfibonaccipress@gmail.com for purchase.

Individual License: $10,000 (one-time)

For independent engineers, researchers, and educators

• Full access to selected toolboxes

• Non-commercial use

• Local execution only

• Source access for learning and experimentation

• Limited email & phone support (additional training fees can be negotiated).

Restrictions

• No resale, redistribution, or commercial deployment

• No SaaS, hosted services, or client deliverables

Typical Buyers

• PhD students, faculty

• Independent aerospace / robotics engineers

• Advanced hobbyists and educators

Startup License: $10,000 (annual)

For early-stage companies and small teams

• Full toolbox access

• Commercial use permitted

• Internal product development allowed

• Up to a fixed number of engineers (e.g., 5–15 seats)

• Limited email & phone support (additional training fees can be negotiated).

Restrictions

• No sublicensing

• No resale as a standalone product

• Revenue cap (e.g., <$10M ARR)

Typical Buyers

• UAV startups

• Robotics companies

• Autonomy, GNSS, and aerospace software ventures

Enterprise License: $25,000 (annual)

For large commercial organizations

• Unlimited internal use

• Multi-team and multi-program deployment

• Commercial products and services permitted

• Optional source escrow

• SLA-backed support and onboarding

• Optional customization and integration support

• Email & phone support (additional training fees can be negotiated).

Optional Add-Ons

• Internal training

• Feature extensions

• Long-term maintenance agreements

Typical Buyers

• Aerospace primes

• Automotive autonomy divisions

• Telecom, robotics, and advanced analytics firms

Government / Defense License $25,000 (annual)

For U.S. Government, FFRDCs, and defense contractors

• Unlimited programmatic use

• Air-gapped and classified-environment compatible

• Program-specific licensing

• Long-term sustainment options

• Compliance-friendly terms (FAR / DFARS-compatible by request)

• Email & phone support (additional training fees can be negotiated).

Optional Add-Ons

• Mission-specific extensions

• Verification & validation support

• Documentation packages for accreditation

• Long-term maintenance agreements

Typical Buyers

• DoD programs

• National labs

• Intelligence and research agencies

Licensing

See License terms here.