誤碼檢出 的英文怎麼說
中文拼音 [wùmǎjiǎnchū]
誤碼檢出
英文
code erroe detection-
On the demand of application and according to the soluhons menhoned above, a method of displacement waiting auto - sy ' nchronizing is put forward, which is based on match filters. at the end a complete and speeflc set of hardware circuits and software programs which haplements the scheme, is also presented in the ancle. the synchronization system was tested in the pool and in the shallow wate near m port, the result of the test shows that its performance is satisfactory
論文著重介紹實現了跳頻通信系統同步的一般方法，並詳細分析和對比跳頻同步系統的捕獲方案，在此基礎上，提出了一個基於匹配濾波器的位移等待式自同步方案，設計、完成並給出了詳細硬體連線電路圖、軟體程序流程圖和部分程序清單，該自同步方法在實驗室水池實驗取得良好的效果，並在廈門港海域進行了現場實驗測試，具有較低的誤碼率和一定的檢測概率，結果令人滿意。In this thesis, the research focuses on pitch detection techniques of the low - rate wi speech coding. aimed at the problems of voiced - unvoiced error, pitch doubling and halving, accuracy of pitch detection and pitch quantization, a series of pitch detection techniques including pre - processing, pitch detection and pitch quantization were proposed
本文就低速率wi語音編碼中的基音檢測技術進行了深入研究，針對基音檢測中的清濁誤判、基音加倍減半、基音檢測精度及基音量化問題，提出了包括基音檢測前端處理、基音檢測演算法及基音量化的一整套基音檢測技術。8b / 10b encoding adapt the characteristic of fiber channel very well, it has been used in high - speed fiber transmission broadly. it avoids the appearance of continuous “ 1 ”, “ 0 ”, offers plenty of bit synchronization time information, enhances the stability of output light signal, reduces interference between signals and offers proper redundancy to check error through transmission
它避免了連「 1 」 、連「 0 」碼的出現，提供了豐富的位同步定時信息，減少了直流基線漂移，提高了光輸出功率的穩定性，減少了高低頻分量，改善了信號間的串擾，提供了適當的冗餘，便於檢測系統傳輸中帶來的錯誤。2. applying manchester coding theory to meet the end of collision detection and codes judgment effectively. 3. using pulse position modulation ( ppm ) coding theory that is invented especially for optical communication in the air to ameliorate the system ' s performance by improving the system ' s character of pe. 4. taking good advantages of the fledged lan communication protocols and technologies to achieve a new method that has a high rate of capability to cost in building a wireless lan
論文研究中主要的創新性工作如下： 1 、提出利用光散射通信技術組建無線局域網，方便地實現了廉價而高速的局域網內微機的光互連； 2 、採用曼徹斯特編碼技術解決了光無線通信中代碼判決和碰撞檢測的技術難題； 3 、針對空氣通道的特點，利用ppm編碼技術降低通道誤碼率、改善系統性能； 4 、在光無線局域網中利用現有的成熟有線局域網協議和技術，從而保證了系統的實用性及改善了系統的性價比。Through a performance analysis and simulation on generated methods, maximum minimum distance, undetected error probabilities, code weight distribution, good extended shortened codes are determined and general rule is concluded. furtherly, the paper generates nonlinear extended shortened codes
通過對擴展縮短crc碼的構造方法、最小距離、不可檢錯誤概率、碼重分佈等進行理論分析和模擬，得到了擴展縮短crc碼的好碼，並綜合出普遍規律。A cyclic check code used to check and correct the burst error appeared in the transmission procedure of binary information sequence. it is one of the error check codes in common use for computer disc memory
用來檢查、糾正二進制信息序列在傳輸過程中出現的突發錯誤的一種循環校驗碼，它是計算機磁盤存儲器常用的錯誤校驗碼之一。The concept of good codes and proper codes for both error detection and correction is presented. it is shown that the binary perfect codes and the primitive double - error - correcting bch codes and their extended codes are proper for both error detection and correction. the primitive triple - error - correcting bch codes with length 2 " " - 1 and their extended codes are proper for odd m > 5, not for even m > 6
本文的主要工作是把目前關于只檢錯時線性碼不可檢錯誤概率的研究推廣到同時糾錯和檢錯的情況，獲得了同時糾檢錯時線性碼不可檢錯誤概率的解析表達式，提出了糾檢錯好碼和最佳糾檢錯碼的概念，並證明了二進制完備碼及其擴展碼是最佳糾檢錯碼；糾正兩個錯誤二進制本原bch碼及其擴展碼是最佳糾檢錯碼；碼長n = 2 ~ m - 1 、糾正三個錯誤本原bch碼，當m為大於等於5的奇數時是最佳糾檢錯碼；當m為大於等於6的偶數時，不是最佳碼。Traditional delay estimation based on ica requires the trail sequences to initialize the receiver, but the new algorithm based on ica does not need the trail sequences. it is based on the channel character of downlink, using the ica algorithm to estimate the multi - path mixture matrix, then, find the delay information which is embodied by the column vector of the mixture matrix. the simulation results show that it does enhance the performance of traditional detector without wasting the invaluable frequency resource
傳統的通道估計演算法需要訓練序列使接收端的參數調整到理想狀態，而本文提出的基於ica的通道估計的多用戶檢測演算法不需要訓練序列，它是利用下行通道的固有特點，用ica的盲源分離法估計出多徑通道的卷積矩陣，從而從中提取出通道的延遲信息，模擬實驗結果證明這種方法在節省了頻譜資源的同時取得較好的估計效果，使得傳統的接收機的誤碼性能得到了很大的提高。This error message will appear when the device is not connected to activesync correctly. make sure you properly connect the device to the pc through activesync before running ruu
本錯誤碼出現在設備與同步軟體沒有正常連接時。請檢查你的設備通過同步軟體已經與pc連通，而後再運行ruu刷機程序。There are many results on sr with binary digital input. as an extension of our previous works, a dynamic bit error rate ( dber ) is obtained in this thesis. the dber is a more accuracy measure to be used in sr with binary input, because the evaluation of system output is considered more detailedly with the concept of system response speed
對於二進制數字信號輸入的情況，已有頗多研究結果，本文是在引入了系統響應速度的基礎上，具體結合二進制信號的檢測形式，對上述情況下的系統輸出的統計性態進行了詳細的研究，並最終得到了一個優于以前結果的系統輸出誤碼率公式，給系統參數的選取提供了更好的依據。I n th i s paper, we analyze error infect i on to picture and give a practicable method in errro dection. some new error concealment algorithms are also presented. this algorithms are applied in dvd decoder system based on ms dshow and intel mmx technology
本文分析了錯誤比特出現在mpge視頻流中的不同的位置對畫面質量的影響，給出了切實可行的錯誤檢測的方法，並結合dvd解碼器開發的實踐，提出了幾種有效的錯誤掩蔽演算法。After observing the correlative of pseudo noise code, we analyse the main cause of multi - access interference, and build the receiving model of multiuser system. in the thesis the optimum multiuser detectors with minimum probability of error and the near - optimum detectors are intrduced, and then pic multiuser detection is improved on
介紹了最佳多用戶檢測器和次最佳多用戶檢測器，並對現有一些并行干擾抵消多用戶檢測器進行了介紹並提出了改進的措施。對採用改進的演算法的系統用montecarlo演算法進行了誤碼性能分析。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。Based on ica post processing matched filter multi - user detection lets the output of traditional matched filter to initialize the ica iterations, not only the known spread information of interesting user is used to overcome the uncertainness of ica, but also the character of statistical independence is used. the simulation results show that it advances the ability of traditional detector when the signal - noise - ratio is large. keywords code division multiple access ; independent component analysis ; channel estimation ; matched filter ; blind multi - user detection
基於ica后處理的匹配濾波多用戶檢測是用傳統的檢測器的輸出來初始化ica的迭代，它不但充分利用多用戶信號的已知信息，克服了ica的不確定性問題，同時也充分利用了多用戶信號的統計獨立性，模擬實驗結果證明這種多用戶檢測演算法在高信噪的情況下，誤碼性能改善隨著信噪比的提高不斷增加。The measure mentioned above, and the dber have been used in the work of signal detection under the background of real sea noise
動態誤碼率公式，以及上面提到的多頻信號輸入時系統輸出性能的衡量指標，已經被成功的應用在了我們對海洋噪聲背景下的信號檢測的研究中。To verify the performance of ds sequence, a kind of correlation detector is designed, and its ber formula is derived
針對cne切snev直接擴頻序列，提出並設計了一種相關檢測方案，推導了該方案的誤碼率公式。( 4 ) cyclic redundancy check ( crc ) js a cyclic code often used redundancy information is added to every transport frame to detect the errors in it
（ 4 ）循環冗餘校驗crc碼是常用的檢測錯誤的循環碼，通過在每個傳輸幀中加入冗餘信息，而檢出其中的錯誤。The thesis describes the common network attack types as well as research condition of network intruding inspection system, and analyses the basic theory of network data packets transfer on account of protocol tcp / ip, and finally discusses network safe system framework on account of p2drr, which takes linux operating system as the development platform, has c as the development tool, uses libpcap as a tool to capture network data packets, and decode according to various protocols, along with the preprocess function on account of such inspection as i / o port scanning, and analyses the misuse inspecting technology deeply on account of key word mode matching, and studies theory abnormal inspecting system on account of data mining. the inspecting and output function of the whole system is designed as mold in plug - mechanism, so as to transplant and extend the system
論文介紹了網路常見的攻擊模式及網路入侵檢測系統的研究現狀，分析了基於tcp ip協議的網路數據包傳輸的基本原理，討論了基於p2drr模型的網路安全系統架構，本系統以linux操作系統為開發平臺，採用c作為開發工具，利用1ibpcap庫為工具捕獲網路數據包，並根據不同協議實現報文的解碼，實現了基於埠掃描等檢測的預處理功能，對基於關鍵字模式匹配的誤用檢測技術作了深入地分析，並對基於數據挖掘的異常檢測系統進行了探討，整個系統的檢測與輸出功能均以插件機制設計成模塊，以便系統的移植和擴展。5. on the detection of signal in bimodal noise, the study of one model is advanced abroad, and the performance of detection is given out by signal - to - noise ratio ; we study the three models synthetically, and give out the performance of detection by symbol error rate. 6
關于雙模噪聲中信號的檢測，國外對雙模噪聲的一種模型的研究較成熟，並從信噪比的角度給出了檢測性能；本文對三種模型進行了綜合比較研究，並從誤碼率的角度給出了檢測性能。The characteristics of chaotic sequences generated by using logistics - map model are studied, then some generic principia are put forward for optimizing design of chaotic spreading spectrum sequences. finally, the system ' s performances are studied when spreading spectrum with optimized chaotic spreading spectrum sequences and traditional spreading spectrum sequences respectively based on the minimum bit error rate mud
研究了基於邏輯映射的混沌序列的性質，提出了混沌擴頻序列優化設計的原則，以最小誤碼率多用戶檢測器為平臺，研究了採用優化混沌擴頻序列和傳統擴頻序列擴頻時系統的性能。分享友人