Implementation of a General Digital IF Quadrature Spread Spectrum Modulator
Qiao Ru Hong · Telecommunication Engineering · 2003
A digital IF modulator for wideband spread spectrum communication system is proposed, which can generate a variety of IF modulation signals based on technologies of quadrature modulation,DDS,digital upconversion and digital interpolation,etc.It is implemented on a general hardware platform and can be extensively used in many communication systems such as digitized spread spectrum radio, wideband CDMA, software radio and telemetry and telecommand system.