V2EX multirate

Multirate

释义 Definition

multirate(形容词):指多种速率/多种采样率并存或交替使用的,常见于信号处理与通信领域(例如在同一系统中对不同信号段采用不同采样率或处理速率)。也可引申为“多费率/多码率”的设计或传输方式。

发音 Pronunciation (IPA)

/mltiret/

例句 Examples

Multirate processing uses more than one sampling rate.
多采样率处理会使用不止一种采样率。

The receiver applies a multirate filter bank to separate channels efficiently, downsampling some paths while upsampling others to match the system clock.
接收端使用多费率滤波器组高效分离各个信道:对某些路径降采样,同时对另一些路径升采样,以匹配系统时钟。

词源 Etymology

multi-(“多、多个”)+ rate(“速率、比率”)构成的复合词。随着数字信号处理(DSP)发展,“rate”常特指采样率处理速率,因此 multirate 多用于描述在同一算法或系统中进行升采样/降采样与相关滤波的结构与方法。

相关词 Related Words

文学与著作 Literary Works

  • Multirate Digital Signal Processing(Ronald E. Crochiere & Lawrence R. Rabiner)
  • Discrete-Time Signal Processing(Alan V. Oppenheim & Ronald W. Schafer)
  • Digital Signal Processing: Principles, Algorithms, and Applications(John G. Proakis & Dimitris G. Manolakis)
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