Design and research of digital up conversion in communication system
Ling Yun-zhi · Electronic Design Engineering · 2012
Baseband signal is modulated intermediate frequency signal by the technogy of digital up conversion in communication system.The I and Q digital baseband signals that are filtered by shaped FIR and half band interpolation,processed by digital mixer,turn into modulated intermediate frequency signal.At last,the circuit design is validated by the time and spectrum figures of MATLAB simulation and analysis.