Related Experiment Video
Updated: Jan 27, 2026

Harmonic Radar Tags for Insect Tracking: Lightweight, Low-cost, and Accessible
Published on: May 13, 2025
Partially coherent radar unties range resolution from bandwidth limitations
Rony Komissarov1, Vitali Kozlov1, Dmitry Filonov1
1School of Electrical Engineering, Tel Aviv University, Tel Aviv, 69978, Israel.
Abstract:
It is widely believed that range resolution, the ability to distinguish between two closely situated targets, depends inversely on the bandwidth of the transmitted radar signal. Here we demonstrate a different type of ranging system, which possesses superior range resolution that is almost completely free of bandwidth limitations. By sweeping over the coherence length of the transmitted signal, the partially coherent radar experimentally demonstrates an improvement of over an order of magnitude in resolving targets, compared to standard coherent radars with the same bandwidth. A theoretical framework is developed to show that the resolution could be further improved without a bound, revealing a tradeoff between bandwidth and sweep time. This concept offers solutions to problems which require high range resolution and accuracy but available bandwidth is limited, as is the case for the autonomous car industry, optical imaging, and astronomy to name just few.
More Related Videos
Related Concept Videos
Range
15.9; 16.1; 15.2; 14.8; 15.8; 15.9; 16.0; 15.5
Measurements of the amount of soda in a 16-ounce can vary since different subjects record these measurements or since the exact amount - 16 ounces of liquid, was not...
Limiting Reactant
The Number e as a Limit
¹H NMR: Long-Range Coupling
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...
Variation: Normal Distribution, Range, and Standard Deviation
Angle of Twist - Elastic Range

