Noise-reducing architecture of compressed sensing receiver for IR-UWB ranging systems
2016 (English)Conference paper (Refereed)
A compressed sensing (CS) based impulse radio ultra-wideband (IR-UWB) receiver with two-path noise-reducing RF front-end architecture is proposed. By adding an identicalinput path (antenna and gain stage) together with a mixer, the noise in the received signal before feeding into the CS sampling block is alleviated comparing with the conventional CS receiver. Moreover, the mixing stage shifts the signal frequency spectrum to the lower band which eases the CS sampling hardware as well as the complexity of back-end signal reconstruction. Simulation results for a ranging system validate that the proposed CS receiver significantly outperforms the conventional one in both additive white Gaussian noise (AWGN) channel and IEEE802.15.4a multi-path channel.
Place, publisher, year, edition, pages
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-195697OAI: oai:DiVA.org:kth-195697DiVA: diva2:1045090
IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB 2016)
QC 201611102016-11-082016-11-082016-11-11Bibliographically approved