Gunshot detection
Robust detection of impulsive acoustic events in noisy, reverberant environments, from single sensors to distributed networks.
Acoustic Instrumentation and Measurement Systems
AIMS
We teach machines to listen.
AIMS is a small research group at the Faculty of Electrical Engineering, CTU in Prague. We work on the full acoustic measurement chain, from sensors and signal processing to the algorithms that turn raw sound into useful information.
Our application areas include detecting gunshots and drone signatures, localizing sound sources with microphone arrays, and classifying acoustic scenes in real time. What ties it all together is careful instrumentation: we believe good acoustics starts with trustworthy measurements.
What we do
Our work spans the full acoustic measurement chain, from sensors and instrumentation to the algorithms that turn raw sound into actionable information.
Drone detection
Passive acoustic recognition of unmanned aerial vehicles by their rotor and motor signatures, including early warning at range.
Acoustic localization
Estimating the position and trajectory of sound sources with microphone arrays using time-difference-of-arrival and beamforming.
Sound classification
Machine-learning models that distinguish and label acoustic events, tuned for real-time operation on edge hardware.
Instrumentation & measurement
Design and calibration of acoustic sensors and measurement chains, the trustworthy data foundation for everything above.
Latest News
What we've been up to recently.
18 May 2026
Department of Measurement Gunshot Detection Test
Three students from the Team Project course successfully demonstrated an ultra-low-power gunshot detector at the FEL campus in Dejvice.
1 Sep 2025
New PhD students join the group
We welcome Kamil Herman and Martin Maxa as new doctoral students to the AIMS group at the start of the 2025/2026 academic year.
7 Mar 2025
NATO grant for research on gender aspects of voice communication
Prof. Jan Holub received a NATO grant to study how communication technologies handle voices of different speakers, with implications for military and security applications.
Our latest publications
Our most recent work.
- 2026
Phase-based spectral method for accurate impulse acoustic event localization journal
Measurement 10.1016/j.measurement.2026.122256
- 2025
Spectral method for acoustic impulse events time difference of arrival estimation journal
Measurement: Sensors 10.1016/j.measen.2024.101420
- 2024
AI-Based Acoustic Surveillance System for Smart Cities conference
IEEE 8th Forum on Research and Technologies for Society and Industry Innovation (RTSI) 10.1109/RTSI61910.2024.10761338
- 2024
Cepstral coefficients effectiveness for gunshot classifying journal
Measurement Science and Technology 10.1088/1361-6501/ad3c5d
- 2023
Comparison of frequency cepstral coefficients in impulse acoustic events detection conference
International Conference on Modelling and Simulation for Autonomous Systems (MESAS) 10.1007/978-3-031-71397-2_1