Yonghong Hou Guihua Liu Qing Wang 0015 Wei Xiang 0001 Performance Optimization of Digital Spectrum Analyzer With Gaussian Input Signal. 31-34 2013 20 IEEE Signal Process. Lett. 1 https://doi.org/10.1109/LSP.2012.2227255 db/journals/spl/spl20.html#HouLWX13