The Generation Of Jamming Wave In The Millimeter-wave Radar Reconnaissance System

With the development of high-tech military warfare, the part millimeter-wave radar plays becomes more and more important in military electronic technology, and the jamming method to it is another hotspot too. This paper researches the composing and feature of millimeter-wave radar, and proposes a system design plan based on advanced DSP and FPGA. This system is required to be real-time, exact, advanced and versatile.This paper focuses on the three parts which make up the radar reconnaissance system: the radar reconnaissance receiver, the digital signal processor, and the jamming wave synthesizer. Firstly, this paper introduces the concept of the system and some interrelated theory. Secondly, it gives a detailed discussion of the key modules in the system, especially which use the programmable logic device (FPGA), high-speed simulation-digital conversion(ADC) , specific digital signal processor (DSP) and high-speed digital-simulation conversion(DAC) to process the signal and synthesize the jamming wave. It actualizes the high-speed sampling and digital process of the radar signal. Next, using the DAC, it generates the comb spectrum baseband signal which can jam at any frequency point. Finally, this paper gives the simulation results of all modules, and analyses the collected data. The results of simulation prove the feasibility and validity of the method in this paper.