The invention relates to the technical field of
wireless communication, and discloses a device and a method for implementing a digital
broadband excitation source. The device comprises a
baseband forming unit, an interpolation filtering unit, a
broadband frequency hopping unit and a digital-to-analog conversion unit which are sequentially connected in series, wherein the
baseband forming unit, the interpolation filtering unit and the
broadband frequency hopping unit are full-digital units; the
baseband forming unit comprises a baseband interpolation pulse forming filter; the interpolation filtering unit comprises a half-band filter and a CIC (
cascade integrator comb) filter which are connected in series; the broadband frequency hopping unit comprises a
frequency mixer and a frequency hopping carrier generator which is coupled to the input end of the
frequency mixer. According to the device and the method, the design architecture of the whole
transmission channel is greatly simplified, the design difficulty and the design cost are reduced, and the reliability, flexibility and stability of a
system are improved. A powerful
technical support is provided for
engineering implementation; meanwhile, a design scheme and an implementation way, which are more efficient and more practical, are provided for equipment and the
system with requirements.