TRANSFORMING COMMUNICATIONS THROUGH

SPIRAL-BASED SIGNAL MODULATION

Astrapi Corporation is pleased to announce it was awarded a contract/s for the Missile Defense Agency Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) indefinite-delivery/indefinite-quantity (IDIQ) contract with a ceiling of $151B. This contract encompasses a broad range of work areas that allows for the rapid delivery of innovative capabilities to the warfighter with increased speed and agility.

Astrapi® applies new engineering and mathematics to utilizing and measuring continuously nonstationary spectrum, in which the power in each frequency is continuously changing. Astrapi’s technology development has been funded by private investment, the Department of Defense, and the National Science Foundation.

In telecommunications, our approach led to Astrapi’s patented ‘Spiral Modulation and Symbol Waveform Hopping technologies.

Spiral modulation increases spectral efficiency compared to traditional signal modulation techniques. This allows, for a given amount of channel noise and available bandwidth (frequency range), for signal power to be reduced and/or data throughput to be increased. Reduced signal power can be used to reduce battery requirements, and for signal protection applications to disguise the existence of the signal.

Astrapi® – Transforming the next generation of communications through Spiral-Based Signal Modulation

Astrapi is the world leader in nonstationary spectrum technology. Our benefits include more efficient communication; robust signal protection without the overhead of traditional bit encryption; more accurate measurement of spectral power; and improved EMS pattern recognition, with benefits to spectral situational awareness and AI/ML event response. Read more about Spiral Modulation and our associated method of channel security, Symbol Waveform Hopping, here.

Our advances in the field of telecommunications led to a patented new spectrum analyzer technology that has shown its superiority to traditional techniques in published per-reviewed research. This opens up important applications in sectors beyond telecommunications such as medical diagnostics and monitoring. Read more about the Astrapi Spectrum Analyzer here.

FOR ENGINEERS iamge

FOR ENGINEERS: Spiral Modulation Resources

Astrapi® technology exploits a new generalization of Euler’s formula, the foundational mathematics for telecommunications. This opens a path to dramatically higher spectral efficiency. View white paper

Spiral modulation provides new ways to combat channel impairments, including AWGN, coherent interference, and phase distortions. It does so by providing new ways to distinguish between signals.

Viewed from another perspective, Astrapi’s Spiral Modulation for the first time fully exploits the capabilities of a continuously non-stationary spectrum.

Spiral Modulation iamge

Spiral Modulation: A Game Changing Force in Telecommunications.

Astrapi was asked to present at the 2021 NASA iTech Cycle II Forum. See the video.

Euroconsult Honors Astrapi Corp as One of Five Most Promising Start-Ups at the Annual Euroconsult Summit for Satellite Financing See full story.

Astrapi wins Satellite 2017 Startup Space Pitch competition grand prize! See the video.

 

Astrapi News

Astrapi Awarded Contract in $151B SHIELD IDIQ

DALLAS, FEBRUARY 6, 2026 Astrapi Corporation is pleased to announce it was awarded a contract/s for the Missile Defense Agency Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) indefinite-delivery/indefinite-quantity (IDIQ) contract with a ceiling

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