輔助載波 的英文怎麼說

中文拼音 [fǔzhùzǎibō]
輔助載波 英文
auxiliary carrier
  • 輔 : Ⅰ動詞（輔助） assist; complement; help Ⅱ形容詞（輔助） subsidiary Ⅲ名詞1 （車輪外旁增縛夾轂的兩條...
  • 助 : 動詞（幫助; 協助） help; assist; aid; support
  • 載 : 載Ⅰ名詞（年） year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 輔助 : 1. （從旁幫助） assist 2. （非主要的） supplementary; auxiliary; subsidiary
  • 載波 : signal carrier; carrier wave; carrier: 3路載波 three channel carrier載波傳輸 carrier transmission...
  1. Nowadays, the ways to detect the piles are various, and all of them are limited in some aspects. for instance, coring test do large scathe on the piles, and static load test will waste much time, money and energy, while some ways are hard to operate as the limitation of the length and the diameter of the piles, and the special condition on the spots, such as high - strain, low - strain, and so on. furthermore, the result can only be gained under the complex analysis of the collected wave, and under the validation of the coring test

    目前，工程中常用的樁基檢測方法很多，但都存在著一些弊端：有的對樁破壞性嚴重，例如抽芯檢測；有的耗時、耗財、耗力，例如靜載荷試驗；還有的如低應變、高應變等檢測技術由於受到樁長、樁徑以及現場一些特殊情況的限制，操作很不方便，而且採集到的波形要經過比較復雜的處理分析方能得出結論，而這個結論卻還要輔助取芯手段加以驗證。
  2. This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller

    本課題在對低壓電力線的傳輸特性和數字調制技術進行分析的基礎上，將通信理論中的直接序列擴頻技術（ dsss ）用於解決低壓電力線通信的干擾問題，主要研究內容如下： （ 1 ）用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析，分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析，驗證dsss技術在本系統中的可行性； （ 2 ）由dsss技術對濾波系統的要求，根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路； （ 3 ）用調制解調晶元sc1128和自行設計的濾波器加之輔助外圍電路，構造出低壓電力線載波通信系統，並採用atmel公司的單片機設計了接收和發射電路的微控制器； （ 4 ）分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗，並對結果進行分析，驗證了dsss技術對干擾信號的抑制作用。
  3. To achieve fast acquisition with only a few symbols, a joint structure for clock and carrier synchronization with non - data aided ( nda ) mode is presented

    摘要為了實現解調中的快速同步，本文給出了一種聯合結構下無數據輔助載波同步和符號同步的方法。
  4. Wave carrier filter, power - transfer transformer and aux - power transformer

    載波頻率濾波器，電源轉換用變壓器和輔助功率變壓器。
  5. Dynamic characteristics of a7v225 braking variable pump, accumulators storage and outlet property, braking and auxiliary driving property of hydraulic systenu load ' s simulation of auxiliary driving and so on have been analyzed in the article. hydraulic storage braking and auxiliary soft starting of down belt conveyor have been simulated in laboratory, at the same time, have testified that this energy saving hydraulic system is available

    通過實驗，並應用了小波分析去噪等數據處理手段，文中對a7v225剎車變量泵的動態特性、蓄能器的儲能和放能特性、液壓系統的制動和輔助驅動特性及輔助驅動時負載的模擬等，分別進行了分析。
  6. Electromagnetic compatibility and radio spectrum matters - electromagnetic compatibility standard for radio equipment and services - part 26 : specific conditions for imt - 2000 cdma multi - carrier base stations and ancillary equipment v2. 2. 1

    電磁兼容性和無線電頻譜情況.無線電設備和服務的電磁兼容性標準.第26部分: imt - 2000 cdma多載波基站和輔助設備的具體條件
  7. In the second part, the necessity of employing differential demodulation in rapid changing channel was explained, performance of multiple symbol detection of mdpsk and decision feed back multiple symbol detection were analyzed. then we present a new differential demodulation algorithm. the decision data is used to recover the carry phase. given the same observation intervals, this demodulation algorithm has almost the same performance, but the receiver is much more simplified

    第二章首先指出了通道參數變化劇烈的情況下，採用差分解調的必要性；分析了多碼元差分解調和數據判決反饋解調演算法的性能和抑制噪聲的能力；在此基礎上提出了一種新的差分解調方案：利用判決數據輔助進行載波恢復，即在判決數據的輔助下，採用fir （ finantimpounsrespouns ）結構對載波相位進行預測的一種演算法，精心設計了該演算法的實現結構。
  8. In this paper, the recent developments of microwave - assisted combinatorial synthesis are reviewed including solid phase synthesis, application of polymer - supported catalyst to combinatorial synthesis, liquid phase combinatorial synthesis, fluorous phase combinatorial synthesis and combinatorial parallel synthesis

    主要就近年來微波輔助組合合成技術的研究進展情況進行介紹，內容包括固相組合合成、基於聚合物支載的催化劑的組合合成、液相組合合成、氟相組合合成以及組合平行合成等。
  9. The algorithm of cross product automatic frequency control ( cpafc ) and frequency bin technology is used for tracking larger frequency deviation. the paper gives out a scheme of digitized carrier synchronization loop, in which the digitized costas loop is used as a basic part while cpafc and frequency bin technology as auxiliary

    在此基礎上提出了數字化、軟體化的載波同步環路演算法方案，主要採用數字化科斯塔斯環的形式，並加以自動頻率跟蹤演算法和頻率開槽技術的輔助來實現載波同步。
  10. Lastly, the ml criterion is used to analyze the nda timing offset estimation algorithms. two symbol synchronization methods that use feedback and feed - forward timing offset estimation algorithms are discussed and simulated. based on the ml criterion, chapter 5 analyzes some carrier recovery algorithms and proposes a nda frequency offset estimation algorithm

    首先簡要介紹了載波同步參數的最大似然估計理論，在此基礎上對一些具有代表意義的載波頻差估計演算法進行了深入分析，並提出一種寬估計范圍、低實現復雜度的非數據輔助載波頻差估計方法。
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