noise shaping 中文意思是什麼
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Sigma - delta modulator, combined with oversampling, effectively attenuate the in - band quantization noise in the output signal and enhance the signal - to - noise ratio ( snr ) through the shaping of the quantization error
調制器與過采樣相結合，對量化誤差噪聲進行整形，有效衰減輸出信號的帶內量化噪聲，提高了輸出帶內信噪比（ snr ） 。 -
Because of the using of interpolation, noise shaping and switching amplification in the digital audio amplifier technology, the power supply modulator is not only much efficient but also behaving good in envelope amplification, this advantage is hard to implemented with conventional technology
數字音頻功放技術是近年發展起來的高效率音頻放大技術，該放大技術採用了過取樣、噪聲整形等數字音頻處理演算法和開關功率放大。採用該技術實現的電源調制器不但具備很高的效率，而且能高指標地放大包絡信號，是常規的電源調制技術無法實現的。 -
Moreover, sampling at high frequency eliminates the need for abrupt cutoffs in the analog anti - aliasing filters. a technique of noise shaping is used in - converters in addition to oversampling to achieve a high - resolution
由於在- a d轉換器中使用噪聲整形技術和過采樣技術，可以用一個簡單的模擬電路加上復雜的數字電路使整個a d達到一個很高的轉換精度。 -
In this dissertation, psychoacoustic models filter banks quantization and bit allocation predicate coding and temporary noise shaping is analyzed
本文首先對心理聲學模型、濾波器組、量化和比特分配、預測編碼、時域噪聲成型等技術進行研究。 -
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。 -
Measurement of noise emitted by machines ; airborne noise measurement, enveloping surface method ; woodworking machines ; special specifications for double end shaping machines
機器空氣噪聲的測量.空氣噪聲測量.包絡面法.木工機床 -
Based on the memorial characters of restoring forces, the equivalent parameters of the bilinear and bouc - wen hysteretic system were gotten by using stochastic equivalent method. then, both the stationary and non - stationary random response of hysteretic system with cubic rigidity and sticky damp were deduced and calculated. in the research of colored white noise, the filter for shaping the power spectral density was designed and the random state response of enlarged vector was gotten
對平穩白噪聲，給出了平穩響應的求解方法並對平穩狀態下的模型參數對響應的影響進行了比較與分析;在有色白噪聲的研究里，通過有色白噪聲的擴階方法和構造成型濾波器來計算有色白噪聲的響應，從而解決一類工程實際振動問題的模擬模擬。
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