Jesús Gutiérrez Oscar Gonzalez Jesús Pérez David Ramírez Luis Vielva Jesús Ibáñez Ignacio Santamaría Frequency-Domain Methodology for Measuring MIMO Channels Using a Generic Test Bed. 827-838 2011 60 IEEE T. Instrumentation and Measurement 3 http://dx.doi.org/10.1109/TIM.2010.2082432 db/journals/tim/tim60.html#GutierrezGPRVIS11