The U.S. Army Research Laboratory has developed the Spectrally Agile Frequency-Incrementing Reconfigurable (SAFIRE) radar, which is capable of imaging concealed/buried targets using forward- and side-looking configurations. The SAFIRE radar is vehicle-mounted and operates from 300 MHz–2 GHz; the step size can be adjusted in multiples of 1 MHz. It is also spectrally agile and capable of excising frequency bands, which makes it ideal for operation in congested and/or contested radio frequency (RF) environments. Furthermore, the SAFIRE radar receiver has a super-heterodyne architecture, which was designed so that intermodulation products caused by interfering signals could be easily filtered from the desired received signal. The SAFIRE system also includes electro-optical (EO) and infrared (IR) cameras, which can be fused with radar data and displayed in a stereoscopic augmented reality user interface. In this paper, recent upgrades to the SAFIRE system are discussed and results from the SAFIRE’s initial field tests are presented.
Brian R. Phelan, Kenneth I. Ranney, Marc A. Ressler, John T. Clark, Kelly D. Sherbondy, Getachew A. Kirose, Arthur C. Harrison, Daniel T. Galanos, Philip J. Saponaro, Wayne R. Treible, and Ram M. Narayanan, "System upgrades and performance evaluation of the spectrally agile, frequency incrementing reconfigurable (SAFIRE) radar system," Proc. SPIE 10188, Radar Sensor Technology XXI, 1018812 (Presented at SPIE Defense + Security: April 12, 2017; Published: 11 May 2017); https://doi.org/10.1117/12.2266217.
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