International Journal of Microwave Science and Technology / 2015 / Article / Fig 5

Research Article

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

Figure 5

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.

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