FAS

JASON on “Compressive Sensing” for DoD Sensors

12.19.12 | 1 min read | Text by Steven Aftergood

The latest report from the elite JASON science advisory panel is devoted to the subject of “compressive sensing.”  This term generally refers to the use of sensors for imaging (or other sensing) of an object in a manner that uses a limited subset of the available data in order to improve efficiency or conserve resources.

“Compressive sensing involves intentionally under-sampling an object or image, typically in a random manner, and then using a companion process known as sparse reconstruction to recover the complete object or image information…,” the JASON report says.

“Compressed sensing can conceivably lead to reductions in data link requirements, reductions in radar resources needed for radar image formation (thereby providing the radar more resources for its other functions such as target detection, target tracking, and fire control), increased angular resolution without commensurate increases in array costs, and increased fields of view without degradation in resolution…”

“Compressive sensing is not a ‘free lunch’,” the report cautions, “but always involves a tradeoff; reduced data may save measurement resources, but it also means a lower signal-to-noise ratio and possibly other artifacts, such as side lobes or false alarms.”

A copy of the new JASON report was obtained by Secrecy News.  See “Compressive Sensing for DoD Sensor Systems,” November 2012.

publications
See all publications
Nuclear Weapons
Blog
New Voices on Nuclear Weapons Fellowship: Creative Perspectives on Rethinking Nuclear Deterrence 

To empower new voices to start their career in nuclear weapons studies, the Federation of American Scientists launched the New Voices on Nuclear Weapons Fellowship. Here’s what our inaugural cohort accomplished.

11.28.23 | 3 min read
read more
Science Policy
Article
Expected Utility Forecasting for Science Funding

Common frameworks for evaluating proposals leave this utility function implicit, often evaluating aspects of risk, uncertainty, and potential value independently and qualitatively.

11.20.23 | 11 min read
read more
Nuclear Weapons
Report
Nuclear Notebook: Nuclear Weapons Sharing, 2023

The FAS Nuclear Notebook is one of the most widely sourced reference materials worldwide for reliable information about the status of nuclear weapons and has been published in the Bulletin of the Atomic Scientists since 1987. The Nuclear Notebook is researched and written by the staff of the Federation of American Scientists’ Nuclear Information Project: Director Hans […]

11.17.23 | 1 min read
read more
Social Innovation
Blog
Community School Approach Reaches High of 60%, Reports Latest Pulse Panel

According to the National Center for Education Statistics’ August 2023 pulse panel, 60% of public schools were utilizing a “community school” or “wraparound services model” at the start of this school year—up from 45% last year.

11.17.23 | 4 min read
read more