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| A Design of Comb Spectrum Jamming Waveform Based on Random Phase and Cyclic Superposition of Multi-frequency Points |
| ZHANG Minghao1， ZHANG Wenxu1，2， LU Manjun3 |
| 1. School of Information and Communication Engineering， Harbin Engineering University， Harbin 150001， Heilongjiang ， China； 2. Key Laboratory of Advanced Marine Communication and Information Technology， Ministry of Industry and Information Technology， Harbin Engineering University， Harbin 150001， Heilongjiang， China；
3. Shanghai Radio Equipment Research Institute， Shanghai 201109， China
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Abstract With the development of frequency agility technology, conventional jamming cannot satisfy the technical requirements, thus bringing the challenges to achieve the ideal jamming effect. In contrast, comb spectrum jamming can conduct frequency-aiming jamming on the working frequency points and resolve the above problems. The field programmable gate array（FPGA ）platform utilizes parallel processing to improve the speed of digital signal processing. The DDS technology can flexibly synthesize signals and is frequently used for radar signal generation. This paper has studied the generation mechanism of comb spectrum jamming and conducted the design and implementation of the jamming waveform using the FPGA platform and direct digital synthesis （DDS） technology. A method of cyclic superposition of multi-frequency points and a random phase based on m-sequence was proposed, which can flexibly control the jamming waveform via adjusting its jamming parameters, and the jamming frequency error is less than 1%.
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Received: 12 May 2022
Published: 09 January 2024
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2023, Vol. 6 
