Experimental study on spatial smoothing direction of arrival estimation for coherent signals
Lay Teen Ong · 2016
This paper presents experimental results of spatial smoothing techniques using a software receiver based linear array processing platform. The array system consists of an multi-element uniform linear array prototype and 7V-USRPs as receiving units. Forward spatial smoothing (FSS) and forward-backward spatial smoothing (FBSS) coupled with multiple signal classification (MUSIC) algorithms for direction of arrival (DOA) estimation of coherent signals are considered. Measurement results are provided to valid ate the performance of FBSS and FSS over a wide range of signal to noise ratio scenarios.