Some time around February 2025, after experiencing a handful of tremors at home in my Taipei apartment (tremors, mind you, that locals wouldn't blink an eye at), I began feeling quakes that weren't there – especially when still, in bed, at night. Continue Reading Category: Environment , Science , Refractor: Science & Health Tags: Earthquake , Signal Processing , Neuroscience , nature , Geology , …
VASC Seminar - Dhawal Sirikonda Newell-Simon 3305 jayvolk_19140 Wed, 08/05/2026 - 16:26 In Person
Using Sound to Steer Light and Light to Measure Sound
DHAWAL SIRIKONDA ZLight and sound are traditionally treated as distinct physical phenomena, yet their interaction provides a powerful mechanism for manipulating and sensing information across imaging, communic…
VASC Seminar - Dhawal Sirikonda Newell-Simon 3305 jayvolk_19140 Wed, 08/05/2026 - 16:26 In Person
Using Sound to Steer Light and Light to Measure Sound
DHAWAL SIRIKONDA ZLight and sound are traditionally treated as distinct physical phenomena, yet their interaction provides a powerful mechanism for manipulating and sensing information across imaging, communic…
Nature Communications, Published online: 31 July 2026; doi:10.1038/s41467-026-76129-8 This study breaks the high-Q linewidth bottleneck of all-optical broadcasting using a parity-time symmetric coupled microcavity with engineered exceptional points. It achieves over 100 channel on-chip broadcasting spanning 200 nm with aggregated Terabit-per-second data rates and validates its feasibility for on-…
QuadRF can spot drones and see WiFi through my wall
The QuadRF (pictured above) a phased-array radio built around a Raspberry Pi 5 and an FPGA board with picosecond-level timing. It does advanced signal processing and beamforming.
It can see WiFi through walls and track drones in flight.
If the open source community can come up with something like this, just imagine what governments are capable o…
This paper presents a neuromorphic processing system integrating a compressed sensing spiking neural network (CSSNN) designed for sparse signal classification. The proposed CSSNN combines data coding, data compression, and SNN classification, enabling end-to-end optimization of network performance and model compression. Evaluated on the MNIST, N-MNIST, and DVS Gesture datasets, under uniform comp…
The IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) is one of the top signal processing conferences in the world. To help the community quickly catch up on the work presented in this conference, Paper Digest Team processed all accepted papers, and generated one highlight sentence (typically the main topic) for each paper. Readers are encouraged to read these mach…
In a surprise appearance at T-Mobile’s Capital Markets Day, NVIDIA founder and CEO Jensen Huang shared a bold vision for the future of telecommunications. “We’ve fused signal processing and AI,” Huang declared during a fireside chat with T-Mobile CEO Mike Sievert, speaking to an audience of press, analysts and investors. “This is going to be […]
Beamforming in wireless communication systems with multiple receive
antennas has been studied for the last three decades. Traditionally, the
design of the beamformer is based on either the knowledge of the spatial
signature of the signal of interest or the availability of a training
sequence. It is, however, possible to use blind techniques to design the
beamformer without any spatial reference o…
