频谱分辨率是数字信号处理教学和工程应用中经常遇到的问题。
Resolution of spectrum is the common problem occurring in teaching of digital signal processing and engineering application.
数字信号处理中标准的频谱分析方法是离散傅立叶变换（DFT），典型的实现方法是快速傅立叶变换（FFT）。
The standard method for spectrum analysis in digital signal processing is the discrete Fourier transform(DFT), typically implemented using a fast Fourier transform(FFT) algorithm.
信号处理模块分析噪声并记录频谱特性和时域统计特性。
The radiated noise can be analyzed and its spectrum can be recorded by signal processing cell.
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