noise level test 中文意思是什麼
noise level test
解釋
噪聲級試驗-
In the last, test and optimization of dvb - c modulator system are addressed. methods of test and some items which should be paid attention of digital carrier level and rate of carrier to noise 、 relationship between ber and c / n 、 mer ( modulator error rate ) are given, some test results got by analyzer are all up to dvb - c test standard
給出了數字載波電平與載噪比（ c / n ） 、誤碼率（ ber ）與載噪比（ c / n ）關系、調制誤碼率（ mer ）測試的方法與測試注意事項，通過分析儀等分析得到結果包括列表和圖示，達到了dvb - c規定的各項指標。 -
Test code for the determination of airborne noise level of hydraulic pumps
液壓泵空氣傳聲噪聲級測定規范 -
Come to the road vehicle breakdown, circadian variation and variation week. use of equivalent continuous a levels and the cumulative percentage of the level of traffic noise test evaluation, proportional prediction right sontu street next five years, the traffic noise trend forecast
運用等效連續a聲級及累計百分數聲級對測試的交通噪聲進行評價，採用比例預測法對雄楚大街未來5年交通噪聲的發展趨勢進行預測。 -
In addition, an experimental system using c language is established, including modules such as representation of waveform polynomial, decision of path senstization, delay computing, clocking based on single - period sensitization, clocking based on multi - period sensitization, test generation considering noise and transformation from bit - level waveform polynomial to word - level polynomial model. they respectively used to test models and techniques proposed in this paper
另外， :基於c語言本人設計開發了一個實驗軟體系統，該系統包括波形多j一貞式表示模塊、敏化通路判定模塊、延時計算模塊、單周期敏化的最小時鐘周期精確確定模塊、多周期敏化的最小時鐘周期確定方法模塊、考慮噪聲的測試生成模塊和位級波形多項式描述轉化成字級多項式描述模塊，分別用於對本文各章中提出的自動化設計的模型和方法進行實驗驗證。 -
Abstract selecting certain section of north - south elevated road in shanghai to develop and set up several curved and erect, turnable noisae - preventing screens, and making comparative noise level test and then conducting analysis and approach on sound environment werw presented in this article
摘要在上海市區南北高架與地面道路建設期間，選擇了一些典型的高架路段，開發和設置了弧型與面立型兩種可翻轉式防噪聲屏，並作了對比噪聲測試，進行了聲環境的分析、探討。
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