delta sigma modulation 中文意思是什麼

delta sigma modulation 解釋
增量總和調制
  • delta : n. 1. 希臘語字母表第四字母〈Δ，δ〉。2. （河流的）三角洲；三角形物。3. 〈D-〉 通訊中用以代替 d 的詞。
  • sigma : n. 希臘字母表的第十八字母 【動、植】 S [Σ] 形；【心理學】千分之一秒。
  • modulation : n 調整，調節；（聲調的）抑揚，變化；【音樂】轉調，變調；【無線電】調制。 amplitude modulation 振...
  1. For digital audio encoding and decoding modules, delta - sigma modulation is introduced and audio data, preambles with accessorial data are multiplexed according to the digital audio interface standard ; for carrier wave, pll frequency synthesizer is used ; for frequency modulation, voltage control oscillator is taken ; for demodulation, pll frequency discrimination is adopted

    調制方式，並按照數字音頻介面標準對音頻數據、同步字和附加信息進行通道復用;對于載波信號，採取鎖相環頻率合成技術手段;對于頻率調制，採用壓控振蕩器;對于解調電路，採取鎖相環鑒頻電路。
  2. This paper focuses on the analysis of sigma delta modulation theories such as mathematics models, noise shaping characteristics, etc. combined with traditional pll fractional - n synthesizers structures, a project of sigma delta modulator is proposed, and the algorithmic analysis is implemented by fpga

    本文在闡述-調制理論，分析其數學模型，噪聲整形特性基礎上，結合傳統小數分頻合成器，提出了-調制小數分頻鎖相環頻率合成器實現方案，及其在fpga里的調制器演算法。
  3. The results indicate that sigma delta modulation could improve spurs of fractional - n frequency synthesizer in a certain extent

    研究表明， -調制技術可以在一定程度改善小數分頻的雜散。
  4. Sigma delta modulation frequency synthesis is an advanced technology that applies in pll ( phase - locked loop ) frequency synthesizer, which could transform the spurs created by fractional - n synthesizers into phase noise that could be filtered by inherent low - pass identity in pll

    此技術應用-調制將鎖相環頻率合成器中分數分頻器產生的相位雜散轉化為相位噪聲，通過鎖相環本身低通濾波特性濾除，從而使用單環即可獲得很高頻率解析度和極低的相位雜散。
  5. In the design, new research and technology are learned about, two modulation ways, pwm and sigma - delta, which can be used to develop digital amplifiers are compared, and theories about 1 - bit technology are studied. then, according to the simulation by matlab, factors which influence system function and parameters which control the work of parts are discussed

    該課題研究了當今數字功率放大器的發展動態以及相關的技術原理，比較了用於實現數字功放的兩種主要方式: pwm和sigma - delta調制方式，結合matlab模擬提出了系統中各模塊需要的基本參數、影響系統性能的相關因素。
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