The weighted method is an important method of enhancing resolution in digital signal spectrum analyses.

在数字信号谱分析中，加权处理是提高谱分辨率的重要方法。

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Resolution of spectrum is the common problem occurring in teaching of digital signal processing and engineering application.

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。

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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.

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）。

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Furthermore, the LightSpeaker's 2.5-inch wide dispersion driver uses digital signal processing to optimize high- and low-frequency output for a full spectrum of sound.

ENGADGET: Klipsch LightSpeaker makes whole home audio as simple as screwing in a light bulb (hands-on)

And, because the digital signal occupies only 65% of the excess allotted bandwidth, stations can use the leftover spectrum to transmit text information like the artist's name, song title or more advertising.

FORBES: Big Audio Dynamite