FM Noise Generator Based on Hybrid Method

Abstract

Abstract In this paper, a wideband and frequency adjustable noise signal generator is studied. The noise signal of this noise generator is produced in analog way and modulated by digital method. The FM noise signal is generated with the help of the direct digital synthesis (DDS) technology. Different frequency noise signals can be generated by changing the center frequency operation code. The signal bandwidth of the noise signal generator is 40MHz, and the center frequency of the signal can be adjusted in the 80 to 120 MHz range in 1 MHz interval.