European Defence Fund (EDF) Grants and the Bulgarian Technology Sector: Integration of Artificial Intelligence into Security

1. Introduction: The New Technological Imperative in European Defense

Modern geopolitical upheavals and military conflicts of the last decade have fundamentally altered the character of armed combat. Traditional doctrines, relying primarily on conventional manpower and massive, slow-moving combat platforms, are under devastating pressure from low-cost, highly resilient, and autonomous asymmetric systems. Warfare is no longer won solely by armor tonnage or caliber counts, but through the efficiency of sensor networks, the speed of analytical data processing, and the capacity for automated real-time decision-making.

At the center of this Revolution in Military Affairs (RMA) lies Artificial Intelligence (AI), combined with advancements in unmanned aerial, surface, and underwater systems. In parallel, the widespread deployment of Electronic Warfare (EW) capabilities has transformed the electromagnetic spectrum into the most contested battlefield. Until recently, the reliance of unmanned vehicles on continuous satellite navigation (GPS/GNSS) and a stable radio telemetry link with the operator has become a critical vulnerability. This necessitates a rapid transition to onboard autonomy, enabling an autonomous system to fulfill its mission even amidst total communications jamming.

To respond to these tectonic shifts and safeguard its strategic autonomy, the European Union established the European Defence Fund (EDF). With a budget of nearly 8 billion euros for the Multiannual Financial Framework and annual investment programs exceeding 1 billion euros, the EDF has become the primary financial and technological catalyst for the European defense industry. For the Bulgarian high-tech sector, characterized by a rapidly developing software ecosystem, innovative hardware startups, and R&D institutes, this opens a historic window of opportunity for integration into European defense consortia and value chains.

"The future of the European Defence Technological and Industrial Base (EDTIB) is no longer forged solely on the factory floors of traditional heavy defense giants, but in the algorithms, neural networks, and microelectronic architectures created by innovative dual-use technologies."

2. Technological and Tactical Dimension: Artificial Intelligence, Autonomy, and C-UAS in EW Environments

2.1. Autonomy and Edge AI on the Battlefield

First-generation combat drones relied on continuous navigation signals and first-person view (FPV) video streams back to the ground station. This made them exceptionally vulnerable to modern tactical EW suites that sever control frequencies or perform satellite spoofing (feeding false GPS coordinates). The solution to this challenge is the implementation of Edge AI (onboard artificial intelligence).

Through the integration of specialized, low-power Neural Processing Units (NPUs), modern unmanned platforms gain the following tactical advantages:

• Autonomous Visual-Inertial Odometry (VIO): The drone spatially determines its location via computer vision and real-time terrain analysis, eliminating the need for external satellite navigation systems.
• Automated Target Recognition (ATR): Deep learning algorithms identify armored vehicles, artillery positions, radars, or personnel based on their visual and thermal signatures, eliminating the need for constant video stream transmission to the operator.
• Terminal Autonomous Guidance: In the terminal attack phase, even under total radio link loss, onboard algorithms assume control and independently adjust the trajectory until target destruction is complete.
• Collective Intelligence and Swarm Robotics: Groups of drones communicate with each other via resilient, decentralized mesh networks, dynamically reallocating tasks upon losing individual units and executing coordinated asymmetric strikes.

2.2. Warfare in the Radio Frequency Spectrum and EW Resilience

Electronic Warfare has become a primary structuring factor on the modern frontline. The jamming spectrum encompasses standard civilian and industrial frequencies (2.4 GHz, 5.8 GHz) as well as a broad spectrum of non-standard tactical channels. Electronic Counter-Countermeasures (ECCM) resilience requires Software-Defined Radio (SDR) systems based on Fast Frequency-Hopping Spread Spectrum (FHSS) techniques and adaptive output power scaling governed by ambient electromagnetic interference.

Here, artificial intelligence plays a pivotal role through Cognitive Radio Systems. Algorithms continuously scan the spectrum, analyze the interference intensity caused by hostile EW stations, and automatically locate "clean" frequency windows to transmit critical telemetry without human intervention.

2.3. C-UAS Innovations (Counter-Drone Systems) and Sensor Fusion

The threat of saturated attacks using low-cost autonomous drones has mandated the rapid evolution of Counter-Unmanned Aerial Systems (C-UAS). Traditional Air Defense, relying on expensive surface-to-air missiles, is economically and operationally unsustainable against swarms of cheap drones. Modern C-UAS architecture relies on a multi-layered approach and mandatory Sensor Fusion:

• Multi-Spectral Detection: Combining data streams from passive RF scanners, acoustic sensor arrays (detecting specific rotor signatures), high-resolution electro-optical/infrared (EO/IR) cameras, and compact passive/active radars.
• AI Command and Control (C2) Platform: Artificial intelligence fuses data streams from all sensors, filters out false alarms (birds, civilian objects), and evaluates threat priority levels within fractions of a second.
• Resilient and Cost-Effective Defeat Mechanisms (Effectors): Integration of kinetic interceptor drones, High-Power Electromagnetic (HPEM) pulse weapons, Directed Energy Weapons (DEW/lasers), and software-guided small-caliber anti-aircraft guns.

3. European Defense Grants (EDF) and the Bulgarian Technological Sector

3.1. EDF Mechanics and Financial Opportunities for Innovation

The European Defence Fund finances projects across the entire Research and Development (R&D) lifecycle through two primary action types:

1. Research Actions: Targeted at breakthrough and disruptive technologies with funding rates of up to 100% of eligible costs provided by the EC. Mathematical AI models, cognitive radio systems, and advanced materials play a central role here.
2. Development Actions: Cover phases from design, prototyping, testing, to certification of defense systems with co-funding rates ranging from 20% to 80%, with the remainder co-financed by Member States or industrial participants.

Crucially for Bulgarian enterprises, the EDF incorporates specific financial incentives and bonuses for Small and Medium-sized Enterprises (SMEs) and Mid-Caps participation. These financial preferences aim to overcome fragmentation between Eastern and Western European innovation ecosystems, fostering genuine cross-border consortia. Within work programs (such as STEP — Strategic Technologies for Europe Platform), priority is explicitly given to Artificial Intelligence, microelectronics, autonomous systems, and cyber defense.

3.2. The Role and Potential of the Bulgarian IT and High-Tech Industry

Bulgaria possesses significant and underutilized potential to contribute to the European defense innovation chain. The country's core strengths include:

• Software Engineering and Big Data Analytics: Bulgarian IT firms hold world-class expertise in developing computer vision algorithms, machine learning models, and secure software architectures.
• Microelectronics, Embedded Systems, and Robotics: Skilled engineering teams design PCBs, sensor modules, and low-power hardware optimized for unmanned vehicles.
• Dual-Use Technologies: Civilian developments in logistics software, autonomous agricultural drone management, cybersecurity, and industrial automation can be rapidly adapted into defense solutions with minimal resource expenditure.

To date, the primary obstacle facing Bulgarian technology companies has been a lack of information regarding defense procurement specifics, complex facility and personnel security clearances, and limited direct engagement with major European defense primes such as Thales, Leonardo, Airbus, Rheinmetall, or Saab.

3.3. Association "RISO" as a Catalyst and Bridge for Defense Innovations

This is precisely where the key role of the Association "Development of Innovations in Security and Defence" (RISO) lies. As an independent expert platform, RISO works to establish an effective nexus between the three primary pillars of the defense innovation ecosystem:

• The High-Tech Private Sector: Informing, consolidating, and assisting IT and engineering SMEs in structuring project proposals for EDF, NATO DIANA, and the European Innovation Council (EIC).
• Academia and Research Institutes: Translating fundamental scientific research in artificial intelligence, radiophysics, and cybernetics into applied industrial prototypes.
• The Ministry of Defence and the Armed Forces of the Republic of Bulgaria: Formulating interoperable requirements, providing operational testing sandboxes for emerging technologies, and securing national co-funding for winning Bulgarian projects.

4. Implications for the National Security of Bulgaria and NATO

Integrating artificial intelligence and autonomous systems into our national defense doctrine directly impacts the security of NATO's Eastern Flank and the Black Sea region. The strategic benefits for Bulgaria are manifested in the following domains:

1. Technological Leapfrogging: Attempting to bridge technological gaps solely by procuring traditional, costly platforms requires massive budgets and decades for integration. A focused approach toward AI, C-UAS, and passive detection enables rapid and cost-effective acquisition of asymmetric defense capabilities.
2. Security of Supply: Domestic production and software maintenance of critical components for C-UAS and communications networks ensure that during high-intensity crises or conflicts, the nation remains independent of foreign supply chain bottlenecks or licensing restrictions.
3. NATO and EU Interoperability: Participation in multinational EDF projects guarantees that Bulgarian developments strictly adhere to Alliance tactical data exchange standards (STANAG) and Multi-Domain Operations (MDO) concepts.

5. Conclusion and Strategic Recommendations

European defense grants under the EDF are not merely a financial mechanism — they are a strategic instrument for redistributing technological leadership across Europe. To establish Bulgaria as an active co-creator of modern defense solutions rather than a mere consumer, the Association "Development of Innovations in Security and Defence" (RISO) recommends the following urgent steps:

• Establishment of a National Defense Innovation Co-funding Fund: The state should provide a targeted guarantee mechanism to ensure co-financing for Bulgarian SMEs awarded EDF consortium projects.
• Acceleration of Security Clearance Procedures: Streamlining vetting processes and security clearance issuance for high-tech companies and their key engineering staff.
• Creation of National C-UAS and AI Test Centers: Designating dedicated geographical areas and electromagnetic testing ranges in Bulgaria for live-fire and real-time testing of autonomous systems under EW conditions.
• Active Advocacy for Bulgarian Industry Involvement in STEP Projects: Fostering targeted diplomatic and industrial collaboration with EU Member States to integrate the domestic IT sector into major European defense consortia.