誤差檢測碼 的英文怎麼說

中文拼音 [wùchājiǎncèmǎ]
誤差檢測碼 英文
error detecting code
  • 誤 : Ⅰ名詞（錯誤） mistake; error Ⅱ動詞1 （弄錯） mistake; misunderstand 2 （耽誤） miss 3 （使受損害...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 檢 : Ⅰ動詞1 （查） check up; inspect; examine 2 （約束; 檢點） restrain oneself; be careful in one s c...
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 碼 : Ⅰ名詞（表示數目的符號或用具） a sign or object indicating number; code Ⅱ量詞1 （指一件事或一類的...
  • 誤差 : error
  • 檢測 : check; detection; test; gauging; detecting; sensing; [工業] checkout; measuring
  1. The main computer is programmed under windows, while the assistant computer is programmed under dos. the last, based on the idea of module - structure, the software of the testing system are designed, thus this software system is compatible and transplantable to design again. the experiment of measuring principle is taken : take the xy flat of lathe as the parallel - pole device and adjust the angle of sensor, the rotating - probe can test the felloe mould in scanning way

    藉助虛擬儀器的思想，對測控系統進行了設計：採用光柵尺、光電編碼器測量可動部件的運動量，解析度高、誤差小；採用細分驅動的步進電機裝置，控制性能好；系統實施環境溫度的檢測、補償，提高了檢測精度；基於兩級微機組建測控系統：主機為人機界面，採用windows編程，從機用dos編程，實時性好；軟體設計採用兼容性和移植性好的模塊式結構，便於二次開發。
  2. Chapter 3 discusses the modules used in the fh - mpsk and fh - / 4dqpsk systems. these modules include : duc / ddc ( digital up converter / digital down converter ), nyquist flitter, burst start detection, interpolation module, pll ( phase locked loop ), pll error extraction, initial phase correction and the coding and decoding for tcm

    第三章主要討論了跳頻模式下fh - mpsk和fh - 4dqpsk系統中各個模塊的設計，這些模塊包括：上下變頻器、奈奎斯特濾波器、信號到達檢測、插值模塊、通用環路、各環路誤差提取方法、初始相位校正和tcm編譯碼。
  3. The extensive use of prediction and variable - length coding in video coding renders compressed bitstreams especially vulnerable to transmission errors and data losses. based on detailed analyses of mc - dpcm / dct mechanism, several error detection, resilience, concealment methods are discussed in this paper

    本文在分析mc - dpcm dct壓縮視頻特點的基礎上研究了各種誤碼檢測方法，並詳細討論了編碼端的誤碼容錯、傳輸層差錯控制、解碼端的失真屏蔽以及編碼器和解碼器交互的差錯控制方法。
  4. The main contributions of this dissertation are : a novel detection strategy in blind image watermarking algorithm generally, the traditional detection strategy corresponding to embedment model i = i + aw has its limitation. first, we treat the watermark information as noise for an image and expand the noise before detection. then, we find the corresponding data in the frequency - domain and adjust them according to our relative minmum principle

    為了解決這一問題，我們將嵌入水印圖像中的水印信息看作一種噪聲，在提取水印前，利用降噪方法得到原始圖像的一個逼近，通過和待檢測圖像的比較，得到含有水印信息的噪聲，再將這種噪聲信息進行放大，最後利用局部最大的編碼原則將水印恢復出來；將改進的水印提取模型應用於基於fourier - mellin變換的盲水印演算法，解決了由於插值和多變換造成誤差積累而造成很難提取水印這一問題。
  5. According to the analyzing on the questions such as the parameters of moire stripe signal influence on photoelectric rotary encoder interpolation errors, lissajou chart ' s characteristics and applications in interpolation errors measurement, we developed a dynamic measurement method about the parameters of moire stripe signal and interpolation errors evaluation. with the combination of hardware and software, a dynamic measurement system of interpolation errors of photoelectric rotary encoder is designed

    通過分析莫爾條紋信號的各種信號質量指標對光電軸角編碼器細分誤差的影響， lissajou圖特性及其在細分誤差測量中的應用，研究出光電軸角編碼器光電信號參數測量及細分誤差評估的動態測試方法，並針對這一方法通過硬體及軟體技術的結合，設計出一套光電軸角編碼器細分誤差的檢測系統。
  6. The interpolation errors of the moire stripe signal have worked on the whole precision of encoder greatly for high - resolution, high - accuracy photoelectric rotary encoders. however it ' s difficult to measure the resolution errors under the conditions of smaller grating pitch and many interpolations

    對于高精度、高解析度光電軸角編碼器來說，光電信號細分誤差對光電軸角編碼器整體精度的影響很大並且在光柵節距較小、細分份數較多的情況下，分辨力誤差很難檢測。
  7. Additionally, the mutual coupling characteristic of adaptive antennas is analyzed by mom and equivalent network method, and the data model is built considering the mutual coupling of antennas arrays. the effect of mutual coupling on music algorithm is also studied, and we get a method to find the mutual coupling matrix based on music algorithm. finally, the effects of mutual coupling and rf channel imbalances on td - scdma are investigated, which will provide a reference for system design

    最後在矢量通道模型分析基礎上，深入地研究了td ? scdma系統中自適應天線與聯合檢測相結合技術，從系統矩陣和誤碼率模擬兩方面考察了自適應天線對聯合檢測性能的改善，並分析了陣列互耦和射頻通道校準誤差對td ? scdma系統上行性能的影響，為系統設計提供了依據。
  8. After analyzing the performance of the coherent tree - structured optimal joint detection ( tsojd ) for qpsk signals and deriving a non - coherent multi - user weight / phase estimator, the dissertation proposes a low complexity non - coherent multi - user weight / phase optimal joint detection algorithm. besides, the dissertation proposes a partial coherent multi - user / iv weight / phase optimal joint detection algorithm and some useful conclusions are obtained in comparison experiments. 4. in the research on the diversity techniques for fast fading multi - path channels, the dissertation proposes a time - scale rake receiver, and analyzes its performance with the conception of auto - wavelet - transform ( awt ) and time - - scale resolution

    提出了過飽和低復雜度qpsk信號的樹型最佳聯合檢測演算法，並分析了相應最佳接收機的性能及相位偏差對性能的影響等問題；考慮了載波相位和多用戶信碼的聯合檢測問題，通過理論推導給出了過飽和多址系統中多用戶信碼/相位聯合估計子，提出了低復雜度非相干多用戶信碼/相位最佳聯合檢測演算法，並分析了此非相干最佳接收機的誤碼性能及相位提取誤差等有關問題；提出了部分相干多用戶信碼/相位最佳聯合檢測演算法，通過計算機模擬分析了該接收機的誤碼性能及相位提取誤差等有關問題，並與相干、非相干解調兩種情況作了比較，得出了一些有益的結論。
  9. Meanwhile, the synchronization algorithm in the ds - ss system can be used in 2d - ss system, and good synchronization performance can be obtained, with its algorithm simplified. the third part analyzed the ber performance of mc - ss - cldd in the presence of multi - user interference in time - varying multipath fading channels

    在論文的第三部分中，研究了多用戶多載波頻域擴頻碼片級差分檢測方案:從理論上分析了頻率選擇性衰落通道下該演算法的誤碼率性能，同時進行了模擬驗證。
  10. Take the hoc based blind modulation detection algorithm as an example, the relationship between the blind modulation detection algorithm and synchronization is investigated. an unproved detection algorithm robust to frequency offset is proposed which solves the problem caused by the error in carrier synchronization. how to synchronize a received signal with unknown modulation type is studied and a blind algorithm to estimate symbol timing of the signals with unknown modulation type is presented

    研究了載波同步和碼元定時同步與調制方式盲檢測演算法的關系；以自適應單載波中高階累積量調制方式盲檢測演算法為例，對于載波同步誤差引起的頻偏問題，提出一種基於頻偏穩健的mdpsk信號調制方式盲檢測演算法；對于未知調制方式信號的定時同步問題，提出一種盲定時估計演算法，該演算法可以估計mdpsk和mqam信號的定時同步信息，實現數字信號的同步分類；提出了一種基於調制方式盲檢測的自適應接收機結構，把調制方式盲檢測，信噪比估計和同步解調聯合起來進行，實現調制方式隨通道質量而自適應變化的信號的正確接收。
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