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Inventing, building, and deploying wireless sensor technologies to address complex problems in society, industry, and ecology

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Jimmy Day

Jimmy Day

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Project Research

Scalable and Low Power Localization for Underwater Robots

EchoBLUE is an accurate, scalable, and low power system that enables full 3D localization of robots in complex, unstructured underwater env…
Project Research

Can Next-Generation WiFi Routers Reconstruct Indoor Layouts?

Indoor layout reconstruction has broad applications in various scenarios, such as smart homes and virtual reality. However, optical sensors…
Project Research

Indoor Drones that can Fly in the Dark

MiFly is a self-localization system for drones that works indoors, including in the dark and low-visibility settings. Instead of …
Project Research

SeaScan: An Energy-Efficient Underwater Camera for Wireless 3D Color Imaging

Long-term and sustainable imaging of the underwater environments is crucial to marine sciences, sustainability, climatology, defense, robot…
Project Research

Long Range Ocean Connectivity at Ultra-Low Power

Van-Atta Acoustic Backscatter (VAB) is the first technology for ultra-low-power underwater networking and communication, which can transmit…
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Machine learning approach to design acoustic experiences

Machine learning in acoustics is an emerging field with great potential yet to be explored. Previous research includes predicting acoustic …
Project Research

Enhancing well-being through low-frequency resonance: a parametric analysis of space geometry

Resonance at low frequencies strongly influences a room's perception of sound, which can enhance or deteriorate the acoustic experience. Pr…
Project Research

FuseBot: RF-Visual Mechanical Search

FuseBot is a robotic system that can efficiently find and retrieve both RFID tagged and untagged target objects in line-of-sight, non-line-…
Project Research

Augmented Reality with X-Ray Vision

X-AR is an augmented reality (AR) system that gives humans "X-Ray Vision" X-AR is a new AR headset that enables users to see things th…
Project Research

Battery-free wireless underwater camera

More than 95% of the ocean has never been observed by humans, even though the ocean plays the largest role in the world's climate system, h…
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Zero-Power Oceans Internet of Things

Our Oceans IoT technologies enable new applications in climate and ecological monitoring, aquaculture, energy, and robotic navigation. …
Project Research

RFusion: Robotic Grasping via RF-Visual Sensing and Learning

RFusion is a robotic system that can search for and retrieve items in line-of-sight, non-line-of-sight, and fully occluded settings. It con…
Project Research

RF-Grasp: Robotic Grasping of Hidden Objects

 Can robots find and grasp hidden objects?Robots are not capable of handling tasks as simple as restocking grocery store shelves as th…
Project Research

Battery-Free Underwater GPS

Can we build a battery-free underwater GPS? While underwater localization is a long-studied problem,  we seek to bring it to batt…
Project Research

Scalable and Ultra-Low Power Ocean IoT

We present the design, implementation, and evaluation of 𝑈2𝐵, a technology that enables scalable ad ultra-low power ocean IoT.  At the…
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Battery-Free Subsea Internet-of-Things

We present Piezo-Acoustic Backscatter (PAB), the first technology that enables backscatter networking in underwater environments. PAB relie…
Project Research

PAB-QAM: Higher-Order Modulation for Underwater Backscatter

PAB-QAM  is a new system that achieves higher-order modulation with the current PAB sensor design. PAB relies on the piezoelectric eff…
Project Research

TurboTrack: 3D backscatter localization for fine-grained robotics

TurboTrack is a 3D localization system for fine-grained robotic tasks, with unique capability to localize backscatter nodes with sub-centim…
Project Research

Wireless communication from underwater to the air

Did you know that submarines today still cannot wirelessly communicate with airplanes? For decades, communicating between underwater and th…
Project Research

RFind: Extreme localization for billions of items

Presenting RFind, a new technology that allows us to locate almost any object with extreme accuracy by transforming low-cost, battery-free …
Project Research

RFly: Drones that find missing objects using battery-free RFIDs

Can drones find missing items? Every year, companies lose billions of dollars due to misplaced items and faulty inventory records in their …
Project Research

Seeing Through Walls

Our group develops technologies that can see through walls and perform motion capture through occlusions. To do so, we rely on wireless sig…