Compressed signal acquisition: Measure smart, use less energy!
Categorie(s) : News, Research
Published : 4 June 2018
The compressed acquisition of a radiofrequency (RF) signal consists of capturing the majority of information in the RF bands with an effective, energy-efficient system. It works much like a bat’s echolocation system, gradually homing in on its prey—or, in this case, the signal. The technique will initially target radio receivers and cognitive radars that adapt to their environment.
Researchers at Leti are working on compressed signal acquisition. The institute recently developed and patented a compressed acquisition architecture in conjunction with Cornell University (United States). The architecture was integrated into an ASIC developed in-house and was proven effective up to a degree of parsimony of 12% (the useful signal takes up a maximum of 12% of the spectrum). It uses ten times less energy than the solutions in the literature.