UAV Detection Using Infrasound: The Power of SIS-1 Infrasound Sensors

Silent Threats Demand Silent Detection

As unmanned aerial vehicles (UAVs) — or drones — become increasingly common in both civilian and military airspace, the need for reliable long-range UAV detection systems has never been greater. Conventional radar and optical systems face limitations in complex terrain or adverse weather. That’s where infrasound sensing technology comes in.

The SIS-1 Infrasound Sensor offers a cutting-edge approach to detecting and tracking UAVs using low-frequency acoustic waves, providing continuous, all-weather surveillance that complements existing radar or visual systems.

What Is Infrasound and Why It Works for UAV Detection

Infrasound refers to sound waves below the threshold of human hearing — typically below 20 Hz. These low-frequency waves can travel long distances and penetrate obstacles like hills, forests, and buildings.

Every UAV or drone produces a unique acoustic signature due to its propellers, engines, and aerodynamic behavior. The SIS-1 sensor detects these subtle infrasound emissions and distinguishes them from natural background noise through advanced filtering and signal processing.

This allows operators to identify, locate, and track drones even when they are invisible to the naked eye or radar — including small UAVs flying at low altitudes or beyond line of sight.

The SIS-1 Advantage

The SIS-1 Infrasound Sensor is purpose-built for field and defense applications requiring high sensitivity, low noise, and energy-efficient performance.

⚙️ Key Features

  • Detection Range: 0.1 Hz – 50 Hz (−3 dB bandwidth)
  • High Sensitivity: 2.5 – 3.5 mV/Pa for faint UAV signatures
  • Ultra-Low Noise: Below the Low Noise Model (LNM) under 1 Hz
  • Low Power Draw: < 5 mA @ 12 V — ideal for solar-powered systems
  • Compact & Lightweight: 156 mm diameter, 67 mm height, 850 g
  • Rugged Design: Operational between −20 °C and +60 °C
  • Differential Output: For scalable multi-node detection networks

These specifications make SIS-1 perfect for deployment in permanent arrays, tactical mobile units, and long-term border installations.

Applications Across Defense and Security

QuakeLogic’s infrasound technology enables multiple use cases in national security and surveillance:

  • UAV Detection & Tracking: Identify acoustic signatures of drones up to several kilometers away.
  • Border Surveillance: Monitor unauthorized aerial movements in restricted zones.
  • Explosion & Gunshot Detection: Detect and locate blasts or weapon discharges in real time.
  • Multi-Hazard Monitoring: Integrate with environmental sensors for seismic, volcanic, and atmospheric observation.
  • Smart Sensor Networks: Combine multiple SIS-1 units to form synchronized arrays for precise triangulation and trajectory calculation.

Easy Integration & Deployment

Each SIS-1 sensor is equipped with standard differential output and low-voltage operation, enabling direct integration with QuakeLogic dataloggers, signal processors, and visualization software. The system can be configured for:

  • Real-Time UAV Acoustic Detection
  • Automatic Threat Classification
  • Event Recording and Remote Data Streaming

Combined with wind-noise reduction systems, SIS-1 delivers clear and reliable infrasound data even in challenging environments.

Why Choose QuakeLogic for UAV Detection

QuakeLogic brings decades of experience in seismic, infrasound, and structural monitoring systems to the defense and research sectors. The SIS-1 sensor reflects our commitment to precision engineering, reliability, and ease of deployment.

When integrated into your existing defense or border infrastructure, the SIS-1 becomes a force multiplier — adding a silent, passive detection layer capable of identifying aerial threats in all conditions.

Ready for Mission-Critical Monitoring

From UAV surveillance and perimeter protection to scientific field studies, SIS-1 is the trusted choice for organizations that demand uncompromised performance.

Click Here to Learn More About SIS-1

📩 Contact us today to learn how the SIS-1 Infrasound Sensor can strengthen your defense and UAV detection capabilities.

Tired of Low-Frequency Noise Harassment? QuakeLogic Has the Solution

If you’ve ever been bothered by a deep, persistent rumble in your home—something you feel more than hear—you’re not alone.

Across the country, families are reporting a disturbing rise in low-frequency noise harassment, often caused intentionally by neighbors using subwoofers, industrial equipment, or other infrasound sources. The effects can be both physical and psychological: headaches, stress, loss of sleep, and a deep sense of unease in your own space.

This isn’t just a nuisance. It’s harassment. And it’s hard to prove—until now.

Why Low-Frequency Noise Is Dangerous to Your Health

Infrasound (low-frequency sound below 20 Hz) is often imperceptible to the human ear—but your body still feels it, and the long-term exposure can have serious consequences:

🧠 Headaches & Migraines – Constant infrasound exposure can trigger tension and pain, even when you’re unaware of the source.
🛌 Sleep Disturbance & Fatigue – These low-frequency vibrations can disrupt deep sleep cycles, leaving you exhausted, irritable, and less focused.
💓 Increased Stress & Anxiety – The body interprets infrasound as a warning signal, activating your stress response and leading to chronic anxiety.
🎯 Cognitive Impairment – Extended exposure has been linked to reduced concentration, memory issues, and mental fog.
🩺 Cardiovascular Strain – Some studies suggest that long-term infrasound exposure can increase blood pressure and heart rate.

This is more than an annoyance—it’s a silent health threat. If you’re experiencing symptoms without a clear cause, infrasound may be the hidden culprit.

The Power of Infrasound Detection at Your Fingertips

At QuakeLogic, we believe everyone has the right to peace in their own home. That’s why we proudly offer the Raspberry Boom Seismo-Acoustic Monitor, a powerful, affordable tool designed to detect and pinpoint infrasound disturbances.

Our infrasound sensor is built with advanced technology capable of detecting low-frequency sound waves that conventional microphones can’t capture. These invisible sound waves can penetrate walls, travel long distances, and cause real harm—but Raspberry Boom gives you the power to fight back.

With it, you can:

✅ Detect and log infrasound events in real-time
✅ Identify patterns and timing of the harassment
✅ Pinpoint the source with location tracking when used in a small sensor network
✅ Create compelling evidence for police reports or legal action
✅ Reclaim peace in your home and protect your loved ones

Why QuakeLogic AIR Is the Best Choice

  • Plug & Play Simplicity – No technical background? No problem. QuakeLogic AIR comes with free, user-friendly software to get you started immediately.
  • Live Monitoring and History Logs – Stay aware of what’s happening and when.
  • Affordable Protection – Priced with families in mind, this powerful tool is available right now on our website.

A Smart Investment in Peace of Mind

Low-frequency noise harassment is real, and it’s affecting more people every day. Whether you suspect a neighbor is deliberately targeting you, or you’re just unsure of what’s causing that strange vibration in your home, QuakeLogic AIR Infrasonic sensor gives you the power to know, prove, and act.

Why QuakeLogic?

At QuakeLogic, we specialize in advanced monitoring solutions for seismic, vibration, and acoustic. Our AIR Infrasound Monitor represents the cutting edge of noise harassment detection—bridging the gap between traditional sound level meters and intelligent, cloud-connected monitoring systems.

Conclusion

Noise harassment is more than an inconvenience—it’s a public health issue. With the right tools, individuals, communities, and organizations can detect, document, and resolve noise disputes effectively. QuakeLogic’s AIR Infrasound Monitor transforms subjective complaints into actionable evidence, empowering a healthier, quieter future.

Take control of your environment today. Explore the AIR Infrasound Monitor and empower your community with the evidence needed to ensure a healthier, quieter future.

🛒 Buy now and protect your peace:

Learn more about the AIR Infrasound Monitor here

🔒 Protect your family.
🧘‍♀️ Regain your peace.
⚖️ Build your case with real, scientific data.

Seeing (and hearing) is believing. Don’t let invisible noise take over your life—let QuakeLogic help you fight back.

Unlocking the Secrets of Volcanoes with Infrasound Monitoring

When a volcano erupts, it releases vast amounts of energy, creating seismic waves that travel through the ground and acoustic waves that propagate through the atmosphere. These low-frequency acoustic waves, known as infrasound, fall below the range of human hearing (under 20 Hz). Despite their inaudibility, infrasound waves travel immense distances and provide a crucial tool for detecting, characterizing, and monitoring volcanic eruptions.

Infrasound waves move at the speed of sound—approximately 340 m/s (760 mph) at sea level—covering 300 kilometers (185 miles) in just 15 minutes. Although slower than seismic waves, infrasound’s propagation is influenced by atmospheric conditions such as temperature and wind, requiring a detailed understanding of these factors for accurate long-range monitoring.

Why Infrasound for Volcano Monitoring?

Monitoring volcanic activity presents unique challenges, particularly in remote regions or under adverse conditions. Traditional tools like seismic networks or satellite imagery can be limited by accessibility and weather. Infrasound overcomes many of these obstacles:

  • Not Affected by Weather: Unlike satellite imagery, infrasound is unaffected by cloud cover.
  • Long-Distance Detection: Infrasound waves from large eruptions can travel thousands of miles.
  • Indicates Surface Activity: When infrasound is detected, it confirms that a volcanic vent is open to the atmosphere.

By combining infrasound with seismic data, scientists can differentiate between surface eruptions and subsurface activity, enhancing the accuracy of volcanic monitoring systems.

How Infrasound Works in Volcanic Monitoring

Nearly all volcanic eruptions generate infrasound signals, each with distinct characteristics depending on the eruption style. The main types of volcanic infrasound include:

  1. Explosions: Short-duration pressure waves caused by eruptive blasts.
  2. Tremors: Continuous atmospheric disturbances lasting from seconds to years.
  3. Jet Noise: Similar to tremors, produced by the lower portion of large eruption columns.
  4. Degassing: Passive release of volcanic gases creating unique infrasound signatures.

These signals are detected by infrasound sensors, which measure subtle pressure changes in the atmosphere. Arrays of these sensors are often deployed near volcanoes to triangulate the source and determine the direction, amplitude, and duration of the acoustic waves.

Advanced Infrasound Monitoring by QuakeLogic

QuakeLogic specializes in deploying state-of-the-art infrasound systems tailored for challenging environments. Our sensors are designed to detect and analyze even the faintest volcanic signals, providing actionable insights for scientists and emergency response teams.

  • High Sensitivity: Capable of detecting frequencies as low as 0.01 Hz.
  • Robust Design: Engineered for harsh environments like volcanic regions.
  • Data Integration: Compatible with SeisComP and other monitoring systems for a comprehensive analysis.
  • Real-Time Data Transmission: Sensors relay data via radio, internet, or satellite for immediate processing.

QuakeLogic’s infrasound monitoring systems are ideal for regions where traditional monitoring networks are difficult to establish, such as remote volcanic islands.

Infrasound Sensors for Volcanic Studies

QuakeLogic’s infrasound sensors fall into two categories: absolute and differential pressure sensors. Absolute sensors detect minute changes in atmospheric pressure, while differential sensors measure pressure relative to a reference point. These sensors, when arranged in arrays, allow for precise localization of sound sources and detailed characterization of eruptions.

By analyzing waveforms, scientists can distinguish between eruption types and gain insights into the scale and dynamics of volcanic activity. For example:

  • Explosive Eruptions: Produce sharp pressure spikes followed by lower amplitude signals.
  • Sustained Tremors: Indicate prolonged activity in the volcanic vent or eruption column.

Why Choose QuakeLogic for Infrasound Monitoring?

At QuakeLogic, our mission is to provide reliable and innovative monitoring solutions that enhance our understanding of volcanic phenomena. Our expertise in infrasound technology helps mitigate volcanic hazards, particularly for aviation safety and emergency management.

For more information on our infrasound systems or to collaborate with us, reach out at sales@quakelogic.net or visit our website at https://www.quakelogic.net/infrasound-sensors

Let’s make the inaudible world audible, one eruption at a time.

About QuakeLogic

QuakeLogic is a leading provider of advanced seismic monitoring solutions, offering a range of products and services designed to enhance the accuracy and efficiency of seismic data acquisition and analysis. Our innovative technologies and expert support help organizations worldwide to better understand and mitigate the impacts of seismic events.

Contact Information

Email: sales@quakelogic.net
Phone: +1-916-899-0391
WhatsApp: +1-650-353-8627
Website: www.quakelogic.net

For more information about our products and services, please visit our website or contact our sales team. We are here to help you with all your seismic monitoring needs.