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In wireless communication waveform design, spread spectrum communication is a commonly used anti-jamming design system. Among them, the coherent frequency hopping waveform has been widely studied because of its better anti-interference performance, and the anti-interference performance of the coherent frequency hopping waveform is also positively correlated with the performance of the anti-interference filter. Limited by the traditional FPGA resources and AD sampling rate, the research method of coherent frequency hopping waveform is to combine the design and implementation architecture of RF front-end multi-frequency down-conversion + software radio platform narrowband synchronization. This article adopts RF front-end full-bandwidth sampling + software radio platform The design and implementation architecture of broadband synchronization. The anti-interference filter is usually designed based on the FIR low-pass filter structure, but compared to the IIR filter, its resource occupancy is high. This paper proposes a low-pass filter structure based on IIR and as an anti-jamming filter, using phase nonlinear compensation to ensure that the anti-jamming performance of the coherent frequency hopping waveform remains unchanged under different interference conditions.