Implementation of a Cross-Spectrum FFT Analyzer for a Phase-Noise Test System in a Low-Cost FPGA

<div>Frequency responses of the CIC filter, FIR filter, and combined filter. The CIC filter and FIR filter have downsampling rates of 5 and 2, respectively. The frequency axis is relative to the input sampling rate.</div>

International Journal of Microwave Science and Technology

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Figure 5

Figure 5: Implementation of a Cross-Spectrum FFT Analyzer for a Phase-Noise Test System in a Low-Cost FPGA 