J. Marttila, M. Allen, Mikko Valkama,
"Frequency-agile multi-band quadrature sigma-delta modulator for cognitive radio: Analysis, design and digital post-processing"
, in IEEE Journal on Selected Areas in Communications, Vol. 31, Nummer 11, Seite(n) 2222-2236, 11-2013, ISSN: 1558-0008
Original Titel:
Frequency-agile multi-band quadrature sigma-delta modulator for cognitive radio: Analysis, design and digital post-processing