Next-generation data platform for space communication

We make AI data move beyond Earth

Rayphase develops software for the satellite radios already in orbit. A single over-the-air update recovers wasted spectrum, maintains throughput in severe weather, and returns power to the payload. No new hardware or launches are required.

How it works Get in touch
30%of spectrum capacity wasted today, recovered in software
66%weather throughput loss on legacy links, avoided with Rayphase
30%of satellite power spent correcting signals, returned to the payload
OTAdeployment as a software update to live satellites

The problem

AI is scaling beyond Earth,
but data infrastructure is not.

The space economy is transitioning from a hardware race to a data crisis. Over the next five years, the volume of data generated in orbit will increase by more than 100 times, moving from gigabytes to exabytes flowing through low-Earth orbit every day. Space hardware cannot keep up.

Spectrum waste

Radio frequencies are congested, and Doppler distortion forces guard bands that leave up to 30% of licensed spectrum sitting idle. Operators pay for that spectrum but cannot use it.

Weather throughput loss

In severe weather, legacy links drop throughput by 66%, falling back to QPSK just to keep the link alive.

Power drain

Orbital speeds cause severe Doppler distortion. Correcting the affected signals consumes up to 30% of a satellite's power budget, leaving less power available to run AI processors.

The hardware has hit its physical limit.

The solution

A Space AI Data Platform that prevents degradation instead of correcting it.

Rayphase improves satellite communication by embedding orbital motion and signal distortion awareness directly into data encoding. Our approach, based on Affine Frequency Division Multiplexing (AFDM), prevents degradation instead of correcting it after transmission. This reduces wasted power and spectrum and enables high data throughput on existing satellite hardware for scalable AI workloads in orbit.

  • Full spectrum utilization: wasted guard band space is eliminated
  • Doppler immunity: no data packet drops at high orbital speeds
  • Ultra-low compute overhead: longer satellite battery life and mission duration
  • OTA deployment: a software update to live satellites, with no hardware required

Rayphase deploys as over-the-air firmware to the software-defined radios already in orbit. It requires no custom silicon and no new ground hardware.

Technology

Built on peer-reviewed science.

Rayphase is built on the Affine Fourier Transform. Our proprietary data layer natively mirrors the geometric dynamics of orbital transmission and stops signal degradation before it starts. Our founders pioneered AFT-based multicarrier communications and published the underlying results, co-authored by our CEO, in peer-reviewed IEEE journals. The performance advantage over OFDM has been proven through software simulations.

  1. Done

    Foundation proven

    Mathematical and spectral efficiency advantages of the AFDM waveform over OFDM proven through software simulations. Core foundational patent applications prepared.

  2. 2026

    Lab validation

    Synthesize AFDM algorithms with a design partner and validate performance via real-time RF lab testing. File patent applications.

  3. 2027

    Orbital demonstration

    Integrate space-qualified AFDM into the satellite architectures of early design partners and execute a joint orbital demonstration. Engage with standardization bodies like 6G NTN waveform standards.

  4. 2028

    Global deployment

    Scale production and license core firmware to satellite constellation operators for global deployment. Contribute to the work of the standardization bodies.

Team

Pioneers of next-generation
communication systems.

Djuro Stojanovic, PhD

Co-Founder, CEO

Serial founder with expertise in AI infrastructure and scaling enterprise software. Co-founded Uhura Solutions (Techstars Tel Aviv 2018), which raised $2.5M in funding. PhD in Space Telecommunications and co-author of the IEEE paper underpinning Rayphase's communication technology.

Marko Andrijasevic, MSc

Co-Founder & CTO

Director of Engineering at Automattic (WordPress.com), operating infrastructure at internet scale: more than 180 million websites and 20 billion monthly page views. Expert in AI/ML with a track record of building production-grade platforms. MSc in Computer Science, specializing in Machine Learning.

Contact

Get in touch.

We would like to hear from operators, integrators, and researchers.

djuro@rayphase.com (CEO) marko@rayphase.com (CTO)