noise improvement 中文意思是什麼

noise improvement 解釋
噪音改善
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  • improvement : n. 1. 改良，改進，增進；進步。2. 利用，活用。3. 〈美國〉（增高房屋、土地等價值的）裝修，改良措施。4. 更優秀的人，更進步的人。
  1. 7 rotary mudflat birdwatching hide has been changed from two small metal locks into a central, wooden lock to reduce the noise caused when windows are opened and closed, and to make opening and locking the windows more easy and effective. a number of windows in three birdwatching hides have been fitted with clear perspex so that visitors can look out of the hide without opening the windows, and to make it slightly brighter inside for moving around. should you have any comment on these improvement works or other matters, then please e - mail lew young

    改善項目包括：在7號觀鳥屋及泥灘上的扶輪社觀鳥屋改用木製窗門鎖，以減少開關窗門時發出的聲響，並改善窗門不能上鎖的情況把5號觀鳥屋泥灘上的獅子會觀鳥屋改裝木製門鎖，以改善木門不能緊閉的情況以及把5號及7號觀鳥屋的木窗挖空，並加上膠片以增加屋內的透光度，避免觀鳥人仕給木椅?倒受傷等。
  2. Major projects under planning include the traffic improvements to tuen mun road town centre section, reconstruction and improvement to tuen mun road, widening of the tolo highway fanling highway between island house interchange and fanling, the central - wanchai bypass and the island eastern corridor link, improvement to island eastern corridor between causeway bay and north point, central kowloon route, widening of gascoigne road flyover, route 4 between kennedy town and aberdeen and retrofitting of noise barriers on 8 existing road sections. hk - zhuhai - macao bridge hk project management office

    而籌劃中的項目有屯門公路市中心段交通改善工程屯門公路重建及改善工程舊政務司官邸附近道路交匯處與粉嶺之間的吐露港公路粉嶺公路擴闊工程中環及灣仔繞道和東區走廊連接路銅鑼灣至北角的東區走廊改善工程中九干線加士居道行車天橋擴闊工程四號干線堅尼地城至香港仔及加建隔音屏障工程於八條現有道路。
  3. In order to improve the quality of the voltage signals, this paper has adopted the scheme of three phases and six organs in signal - generator part, which can eliminate the errors caused by the assembly warp and the zero shift of organs. this paper also has analyzed the distribution and varying rules of the magnetic field in the signal - generator part, then based on the conclusion of the analysis improved the structure of signal - generator, which could completely eliminate the noise signal caused by the roughness of the face on the magnetic steel ring. the improvement not only met the requirement of this study, but established the theory foundation for the super - high precision magnetic encoder in future research

    因此，為提高原始電壓信號的質量，本文採用三相六元件的信號發生方案，通過差分處理濾除了由於裝配偏差和零點漂移帶來的信號誤差;本文對編碼器信號發生結構進行了磁場分析，依據磁場分析的結論對編碼器常用的信號發生結構進行了改進，改進后的結構利用積分原理在理論上能夠完全消除信號中由磁鋼環表面粗糙度引起的信號噪聲，進一步提高了信號質量，此結構不僅滿足了本課題的需要，而且為今後研製超高精度的磁電式編碼器奠定了理論基礎。
  4. The likely potential sectors for hong kong s environmental protection services providers include environmental equipment repair, maintenance, and consultation services, indoor - air quality monitoring and improvement services, environmental hygiene services, noise control and monitoring, environmental reporting and verification, iso 14001 environmental management system development and certification, energy conservation and audit, environmental audit, environmental licence application, environment - related training and environmental impact assessment

    香港環保服務提供者有機會拓展的領域包括：環保設備維修、保養及顧問服務，室內空氣質量監測及改善服務，環境衛生服務，噪音控制及監測，環境報告及核證， iso14001環境管理系統發展及認證，節能及其評審，環境評審，環境許可證申請，環境相關培訓及環境影響評估。
  5. The directional routing protocol ds _ dsr put forward by the author is the improvement of the current protocol dsr, complete routine discovery and maintenance by directional neighbor nodes routing table, source routing and directional steering. the research discovers the application of the directional antenna, compare the omnidirectional antenna can increases the networks " total throughput, obviously reduces the co _ channel interference ( cci ), multiple access interference ( mai ), enlarges the nodes " signal and interference to noise ratio ( sinr ), and because of the high gain of directional antenna can realize the communication with farther distance and less jump, end to end delay can decrease deeply, simultaneously, security of networks can be improved partially, the node energy also can be saved easily by power control

    本文提出的定向路由協議ds _ dsr是基於對現有協議dsr的改進下實現的，通過定向鄰節點路由表、定向源路由和定向搜索來完成路由發現與維護。研究發現，定向天線的應用，相比全向天線可明顯提高網路的總的吞吐量，減少通道干擾、多址干擾，提高信干噪比，且由於定向天線的高增益可實現較遠距離、較少跳數的通信，減少了路由發現時間，這樣大大減小了傳輸時延，網路的整體性能得到了不同程度的提高，同時部分地解決安全問題，通過功率控制還可較容易的實現節能的目的。
  6. Under ideal conditions, adaptive array signal processing methods can get excellent performance and adaptive beamformers provide an improvement in array output signal - to - interference - plus - noise - ratio ( sinr ) in comparison with conventional beamforming. in practical operating circumstances, the performance of adaptive array signal processing methods degrade extremely due to existing errors

    但是，在實際系統中總存在有誤差，包括自適應訓練樣本有限次快拍引起的協方差矩陣的估計誤差和各種系統誤差，誤差使得實際陣列流形與理想陣列流形存在差異，這時自適應陣列信號處理的性能會急劇下降。
  7. This paper makes a detailed discussion on the following key problems of high - frequency vibrating screen as bearing heating, high pitch of noise, and breaking of main bolts and it also provides the reason why those problems happen, improvement plan, and application

    摘要就高頻振動篩在使用中軸承發熱、噪聲過高、主螺栓斷裂等關鍵技術問題，詳細論述了問題的產生原因，改進方案和使用效果。
  8. In the first part of this paper, the theory of laser range and dds technology was introduced, the factors of influencing range precision were also analysed. at the same time, put forward in the paper, with using the fpga embedded technology, the wideband and high resolution sin modulating signals can be generated easily, then analysed the noise of the dds ; in the second part, the theory of phase measurement based on fft was analysed. in the phase range system, by using the fft operation, the resolution and sensibility of phase measurement can be enhanced ; then some circuits were designed and come true, also simulated and validated ; in last part, the improvement of the phase range system was brought forward, summarized and expected

    論文首先闡述了激光測距和調制信號源的基本原理，分析了影響測距精度的因素，指出應用dds技術可以實現寬帶、高精度的調制信號輸出，說明了引起dds輸出信號雜散的原因和解決的辦法;同時分析了應用fft運算實現信號相位提取的基本原理及設計方法，採用這種檢相技術，可以極大地提高測相精度與靈敏度;然後提出了基於fpga嵌入式系統的相位式激光測距機的整體設計，並就各部分進行了詳細的分析與設計;接著介紹了激光測距系統的外圍電路和基於quartusii集成軟體平臺的部分硬體電路的設計，並對其中的設計進行了模擬和驗證;最後總結提出了對系統今後的進一步改進和完善的思路。
  9. Transmition velocity relys on the style of encode and modulation essentially during modern data transmition for the quality of using line bandwidth and the immunity of code ties on them tightly. but it is important that the velocity of data transmition reaches its limitation in fact for the interface of environment and cross - talk. so for the improvement of transmition velocity, we must analyze the characteristics of noise signal and the model of line deeply and then take some useful measures to better the immunity of modulation wave

    在現代通信的數據傳輸過程中，傳輸速率本質上是由傳輸的編碼方式和調制方式決定的，因為編碼方式和調制方式直接決定了線路頻帶利用率和碼元抗干擾能力的好壞，因而直接決定了傳輸速率；但是在實際應用過程中，數據傳輸速率是不可能達到理想狀況的，因為環境干擾、串音干擾等因素的存在使得線路的頻帶不可能被完全利用起來；因此，必須認真分析線路的噪聲信號的特性以及噪聲線路的模型，以便在編碼方式和調制方式中針對性的做一些改進措施以改善調制波形的抗干擾能力，使得傳輸速率能夠進一步提高。
  10. A new md statistical noise improvement algorithm for dose effect simulation

    一種用於劑量效應模擬的新型分子動力學統計噪聲改進演算法
  11. Experimental results indicate that the method here has great improvement on the noise performance and frequency resolution and can detect effectively sinusoidals that have close - spaced frequencies

    模擬實驗表明，本文方法具有較好的噪聲穩定性和較高的頻域分辨能力，能準確地檢測出頻率非常接近的正弦信號，具有較好的估計性能。
  12. The al - di ( articulation index weighted - directivity index ), which is a measure for the improvement of the signal - to - noise ratio, is increased by about 30 percent for the trimictm technology. this corresponds to an improvement in speech intelligibility of up to 30 %

    研究亦顯示，在吵雜環境中，即語音與噪音的比率較差時，方向性麥克風對聽障者尤其有效，言語理解能力可提升至30 % ，使聽障者更容易與人交談。
  13. Then according to the emphasis of the design, went deeply into the theory of pll frequency synthesizers widely used, described pll ’ s working principle, structure and several types in detail, and made research and analysis of pll frequency synthesizers ’ phase noise, including the effect of the active loop filter on the phase noise, and give some methods to make improvement as well, such as changing loop filter form, reducing divide number, and increase phase detector frequency, etc. then paper introduced the principle character and phase noise analysis of direct digital frequency synthesizer ( dds ) and injection phase lock circuit, which are also important circuits in the design

    論文首先對幾十年頻率合成器的發展進行概述，而後針對本次設計的重點，對應用較為廣泛的鎖相頻率合成理論進行了深入的探討，詳細介紹了鎖相環的工作原理、組成結構和鎖相類型，並對鎖相頻率合成器的相噪特性進行了研究分析，包括有源環路濾波器對于相噪的影響，提出了改善相位噪聲的幾點措施:改善環路形式、降低分頻數、增大鑒相頻率等。接著介紹了直接數字頻率合成器（ dds ）和注入鎖相電路的原理特點以及相噪分析，它們也是本次設計的重要電路。
  14. Tdm - wt - 2400sp double location water type blow cabinet : ( 1 ) inside sets at the path, sprays, prevents the structure, carries on three times of cleans to the oil mist, the improvement work environment, reduces the paint to the human body violation, the noise is small

    二tdm - wt - 2400sp雙工位水濂式噴油櫃: （ 1臺）內置軌跡，噴淋，阻流結構，對油霧進行三次清洗，改善作業環境，減輕油漆對人體的侵害，噪音小。
  15. Analysis on noise reduction of engine exhaust manifold cover and its structural improvement

    發動機排氣歧管罩降噪分析與結構改進
  16. We made an improvement in overcoming the defects in speech signal adaptive delta modulation ( abbr. adm ), such as slope overloading and grain noise. in this method, numerical sliding average filtering was used for filtering decoding speech signal. experiments and analyses indicate that the method makes waveforms in good agreement between the decoding of adm and the original pulse coding modulation ( abbr. pcm ) signal, and considerably improves, the playback speech quality in naturalness, legibility and under standability

    針對語音信號自適應增量調制（ adm ）方式中斜率過載和顆粒噪聲缺點，提出了一種改進方法，它利用滑動平均方法對解碼后的信號進行數字濾波.試驗和分析表明，該方法使解碼后的信號波形與原脈沖編碼調制（ pcm ）波形具有很好的一致性，使再生語音質量在自然度、清晰度和可懂度方面比改進前均有較大提高
  17. Major improvement programmes include the refurbishment of all east rail trains, the installation of an automatic train protection signaling system, installation of noise barriers, the purchase of the ktt through train and new light rail vehicles, renovation of hung hom station and improvements to other stations and facilities

    主要的改善項目包括翻新所有東鐵列車、裝置列車自動保障系統、安裝隔音屏障、購置九廣通直通車和新輕鐵車輛、擴建紅?車站，以及其他車站和設施改善工程。
  18. A wavelet visible watermarking algorithm is proposed based on noise masking, then the improvement is made based on texture feature of watermark image

    摘要根據圖像的噪聲掩蔽性設計了一種小波域可見水印演算法，並根據水印圖像的紋理特徵對演算法作了進一步改進。
  19. A mathematical transformation algorithm precisely reconstructs the spectrum with a 4x signal - to - noise improvement as compared with a slit - based system equipped with identical source, grating and detector components, and 70 - 80x greater than with a fiber input of equivalent resolution

    一個數學轉換元演算法則精確地改造了光譜，在使用相同的光源、光柵和探測原件的情況下，與傳統的基於狹縫技術的系統相比，新的光譜儀將信噪比提高了四倍，而進光量提高70 - 80倍。
  20. Meanwhile, with the development of wdm / dwdm communication systems, more and more attention is paid on the edfas with broader bandwidth, good gain and noise feature, and gain clamping, etc. according to the tianjin natural science foundation project : intelligent fiber amplifiers and light sources, the tianjin natural science foundation project : ( c + l ) broadband fiber amplifier and the nankai - delta ( tianjin ) project : development of gain flattened erbium - doped fiber amplifiers, this dissertation is mainly focused on the study of novel gain - clamped edfa, light sources, multi - wavelength fiber laser and variable optical attenuator for gain - clamped usage, gain and noise improvement of edfa, and broadband edfa

    Wdm / dwdm通信系統的發展又需要edfa具有更大的帶寬、優良的增益和噪聲特性和增益控制等功能。基於上面的情況，並結合天津市重點基金項目? ?智能光纖放大器光源的研究、天津市重點基金項目? ? （ c + l ）超寬帶摻雜光纖放大器和南開-達爾泰（天津）項目? ?開發增益平坦的摻鉺光纖放大器等課題，論文主要圍繞新型增益控制edfa 、增益控制用光源、多波長激光器及可調光衰減器、 edfa性能優化和超寬帶edfa等方面進行了理論和實驗研究。
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