Title :
Ultra sensitive TV detector measurements
Author :
Leu, Alexe E. ; Steadman, Karl ; McHenry, Mark ; Bates, Jim
Author_Institution :
Shared Spectrum Comp., Vienna, VA
Abstract :
This paper investigates the performance of FFT- type feature TV detector of weak signals, which can be used in listen-before-talk (LBT) spectrum access algorithms. Using FFT plots applied to consecutive sets of measurements collected at multiple locations, we illustrate and characterize different types of spurious signal environments. Ultra sensitive TV detectors can significantly improve the overall system performance in terms of available TV channels versus transmit power. We show the system performance curves based on real measurements collected at multiple locations
Keywords :
channel allocation; fast Fourier transforms; frequency allocation; signal detection; television standards; video signals; FFT; LBT spectrum access algorithm; TV channel; TV detector measurement; listen-before-talk; power transmission; ultra sensitive detector; weak signal detector; Computer vision; Detectors; Digital TV; Extraterrestrial measurements; Frequency; Interference; Power measurement; Signal detection; System performance; Working environment noise;
Conference_Titel :
New Frontiers in Dynamic Spectrum Access Networks, 2005. DySPAN 2005. 2005 First IEEE International Symposium on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-4244-0013-9
DOI :
10.1109/DYSPAN.2005.1542614
