Blocking type interference signal generation device and method based on digital noise

The invention relates to the technical field of wireless signal transmission and discloses a blocking type interference signal generation device and method based on digital noise. The device comprises a random digital sequence generation circuit, a field programmable gate array (FPGA) device, a digital to analog converter (DAC) chip, a digital display scope (DDS) chip and an adjusting output circuit. The random digital sequence generation circuit is used for generating a random digital sequence. The FPGA device is used for receiving the random digital sequence, processing the sequence into a white noise digital signal with a notch and generating a frequency control word. The DAC chip is used for converting the white noise digital signal into a white noise analog signal. The DDS chip is used for generating an appointed waveform signal according to the frequency control words. The adjusting output circuit is used for conducting frequency mixing on the white noise analog signal and the appointed waveform signal, adjusting the signal and outputting the signal wirelessly. A blocking type interference mode more flexible in setting is provided, blocked bandwidth can be adjusted in real time, interference pertinence is higher, the power is higher, and interference system adaptability is effectively improved.