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Industry News2026-10-12 17:32:52

Passive Radar: Can Cheap SDR Reshape the Counter-Drone Warfare Landscape?

Passive radar relies on existing civilian illuminators of opportunity in the environment—such as FM radio and digital TV broadcasts—emitting no electromagnetic waves of its own. It locates targets solely by receiving their reflected signals and, combining the Doppler effect with time-difference-of-arrival, uses the intersection of ellipses from multiple receiving nodes to determine target position. As cheap commercial SDR (software-defined radio) becomes widespread, the hardware barrier for passive radar has dropped sharply. Thanks to its good concealment, no need for spectrum transmission licenses, and ease of distributed networking, it is regarded as a highly promising detection solution for low-altitude counter-drone operations. However, the technology has inherent limitations: detection performance depends heavily on external broadcast signals, range resolution is relatively poor, and it faces engineering challenges such as strong direct-signal suppression, battlefield clutter interference, nanosecond-level time synchronization across nodes, and real-time processing of massive RF data. Overseas technical communities have proposed battlefield concepts for building passive radar based on large-scale cheap SDR arrays to counter FPV drones, but the approach remains at the prototype R&D stage and is not yet mature enough for field deployment. Passive radar cannot replace traditional active radar, yet it serves as an important supplement for low-altitude surveillance and covert reconnaissance. The spread of SDR has also brought this technology out of military-industrial labs, attracting growing attention from both civilian and defense sectors.

Industry News2026-09-14 09:12:35

Interpreting the Digital Twin Battlefield: Virtual-Physical Coexistence, Ushering in a New Paradigm for Electromagnetic Warfare

The electromagnetic spectrum has become a critical nexus for multi-domain joint operations. Under intelligent warfare, traditional electromagnetic combat paradigms face bottlenecks in sensing, decision-making, and resource scheduling. The Digital Parallel Battlefield leverages digital twin and AI technologies to construct a high-fidelity digital mirror of the electromagnetic domain, establishing a bidirectional virtual-physical closed-loop system that reshapes electromagnetic warfare paradigms. Integrated with Dayao Technology’s domestically developed product suite — Tianwen–Tiangang–Tianyu — it enables high-fidelity electromagnetic environment replication, large-scale parallel simulation, and iterative virtual-physical optimization. This advances electronic warfare from single-platform competition toward systemic competition, delivering autonomous, controllable technical support for low-altitude defense, wireless communications, and scientific research & training.

Industry News2026-08-28 13:45:46

Thinner than a book, yet capable of eavesdropping on the entire spectrum's 'whispers' | Dayao Technology RF320: Shrinking Software-Defined Radio (SDR) into pocket size

Traditional large-scale radio instruments are constrained by size and deployment scenarios, making field operations cumbersome. This article introduces Dayao Technology's Tianyu series RF320 portable Software-Defined Radio (SDR) device. With dimensions of only 180×130×39 mm and a weight under 0.5 kg, the RF320 balances compact portability with high performance. It supports an ultra-wide frequency range of 1 MHz–18 GHz and an instantaneous bandwidth of 56 MHz. Equipped with 12-bit ADC/DAC, it enables weak-signal acquisition. The device is compatible with the GNU Radio open-source ecosystem and integrates the proprietary Tiangong core engine. It is suitable for diverse applications including university teaching, research prototyping, field spectrum monitoring, and development by radio enthusiasts. Additionally, this article compares the RF320 with other models in the Tianyu series to assist readers in rapid model selection.

Industry News2026-08-26 08:55:51

Are massive sensor data overwhelming battlefield networks? The U.S. military's CJADC2 solution: Pushing AI to the tactical edge.

The explosion of battlefield sensors has led to data overload. The U.S. military's CJADC2 initiative deploys AI to the tactical edge, enabling intelligent RF signal processing locally—filtering massive volumes of raw sampled data—to achieve rapid threat identification in bandwidth-constrained environments. This reveals that the core of modern spectrum warfare has shifted toward edge-distributed intelligence.

Industry News2026-07-22 15:53:27

Dayao Technology's self-developed domestic SDR: Breaking overseas technological monopolies and building a fully independent, controllable end-to-end electromagnetic signal solution.

Software-Defined Radio (SDR) is a core foundational platform in communications, radar, and electronic warfare. For years, the domestic market has heavily relied on overseas equipment, suffering from technological restrictions, poor compatibility, and high costs. After years of technical accumulation and iterative breakthroughs, Dayao Technology’s domestically developed RF-series universal SDR hardware—featuring full-stack in-house R&D, high performance, and superior compatibility—has become the preferred domestic alternative for university research and national defense equipment.

Industry News2026-07-14 17:57:45

Breaking the Dilemma of University Experimental Teaching! Software-Defined Tianwen Cloud Teaching and Experiment System Redefines the New Paradigm for Communications and Electronics Training.

As the construction of new engineering disciplines advances deeply, STEM majors such as communications, electronic information, and artificial intelligence have long embraced the core pedagogical logic of 'theory-based foundation building and practice-driven empowerment.' Laboratory instruction—serving as a pivotal component in cultivating STEM talent at universities—functions as the critical bridge connecting classroom theory with industrial engineering practice. However, many universities' communications and electronics laboratories remain trapped in traditional teaching paradigms: outdated and cumbersome equipment, lagging curriculum updates, low hands-on efficiency, and ineffective teaching management collectively undermine practical teaching quality, rendering them ill-suited to meet the demands of cultivating innovative engineering talent in the new era.

Industry News2026-06-24 13:39:07

The European Commission announced a €1.07 billion defense investment, focusing on drones, AI, and anti-missile systems.

Brussels, April 15, 2026 — The European Commission announced today the allocation of €1.07 billion through the European Defence Fund (EDF) to support 57 new defense projects, further advancing multinational integration and capability enhancement across the EU defense sector and enabling cross-border defense coordination.

Industry News2026-06-16 14:18:23

Millisecond-level situational prediction! AI fully deployed in the maritime integrated dispatch center.

At the Sea-Air-Space exposition held in National Harbor, Maryland, senior U.S. Navy officials revealed that the Navy is advancing the integration of artificial intelligence (AI) technologies into Maritime Operations Centers (MOCs), aiming to build a 'robust human-machine team' capable of anticipating adversary actions and recommending courses of action to commanders nearly in real time.

Industry News2026-06-12 10:46:26

AI-Upgraded Sea Breaker Missile: Enabling Autonomous Precision Strike in GNSS-Denied Maritime Environments

According to Autonomy Global, Israeli defense giant Rafael has completed an advanced Artificial Intelligence (AI) technology upgrade for its Sea Breaker long-range precision-guided missile, further enhancing the autonomous combat capabilities of this fifth-generation weapon system in highly contested maritime environments. The upgraded missile can achieve enhanced automatic target acquisition and recognition against both maritime and land-based targets—even under extreme adverse conditions, intense electronic warfare, and GNSS-denied scenarios.

Industry News2026-06-09 10:43:05

Annapolis Micro Systems launches the WILDSTAR 3AE1 3U OpenVPX Direct RF board

Military Embedded, a specialized media outlet for the military embedded domain, featured this week's key product — the WILDSTAR 3AE1 (WS3AE1), a 3U OpenVPX Direct RF board launched by Annapolis Micro Systems. Equipped with 100 GbE networking support and powered by the Intel Altera Agilex 9 MCP2 Direct RF series AGRW027 FPGA, the WS3AE1 achieves deep integration of high-performance processing with analog-to-digital/digital-to-analog conversion capabilities. Designed specifically for mission-critical military sensor processing applications, it delivers ultra-low latency and fully complies with the Sensor Open Systems Architecture (SOSA) technical standard.