A Saab Sirius passive sensor system in a photo released on 19 December 2025. (Saab)
An unnamed European NATO country has awarded Sweden’s Saab a EUR130 million (USD152.49 million) contract for Sirius passive sensor systems, according to a 19 December Saab press release.
The deliveries of the system and related services will take place until 2030.
The Sirius system integrates a suite of sensors for communications intelligence (COMINT) and electronic intelligence (ELINT) from Saab or a third party, according to the company. Its system is designed to provide enhanced situational awareness by connecting sensors with network management and data fusion functions.
Sirius has wideband and narrowband digital receivers; software-defined waveform processing and demodulation; analysis and dissemination of collected data; electronic warfare (EW)/signals intelligence (SIGINT) databases and emitter library tools; and a multisource information fusion system. The system also uses machine learning, according to Saab.
Saab unveiled Sirius in May 2019 at the Electronic Warfare Europe (EWE) 2019 exhibition in Stockholm.
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reported at the time that Sirius included a SIGNIT and EW data management system known as SAINT (Saab intelligence) used to provide multisource handling and control of user access and classification. The system’s information fusion provides for data import from other external sources. Sirius covers frequencies from 1.5 MHz to 40 GHz.
For more information, please seeSaab reveals Sirius passive sensor systemandSaab unveils new portable passive sensor for communications interception.
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