調相干擾 的英文怎麼說

中文拼音 [diàoxiānggānrǎo]
調相干擾 英文
phase modulation jamming
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 干 : 干Ⅰ名詞1 （事物的主體或 重要部分） trunk; main part 2 （幹部的簡稱） short for cadre Ⅱ動詞1 （做...
  • 擾 : Ⅰ動詞1 （擾亂; 攪擾） harass; trouble 2 （客套話 因受人款待而表示客氣） trespass on sb s hospital...
  1. Some studies on control modes of the system, especially on a dc, pm, brushless and sensor - less motor driven systems. a method of rotor position identification without sensors has been developed. using a microchip to increate system efficiency, anti - disturbing ability and reliability of pwm modulation

    研究了適于直流、無刷、永磁、無位置傳感器電機轉子位置的檢測方法；採用單片機實現了該種電機的運行控制，提高了系統在pwm調制時位置檢測換相控制過程的抗干擾能力。
  2. Abstract : based on analysis of the operational principle of the traditional inductosyn digital display meter in the paper, the contradiction between detecting resolution ratio and antidisturbance ability is discovered. and then, to resolve the contradiction, the method of demodulation technology and high frequency excitement technology being used is advanced

    文摘:通過分析傳統鑒相型數顯表的工作原理，揭示了其檢測解析度與抗干擾能力之間的矛盾，並提出了採用差頻解調和高頻激磁等技術解決矛盾的方法。
  3. Analysis f k and na in nepheline were curried out with higher precision and repeatability by means of adding fluohydric acid during sample melting to remove sio2, adjusting the ratio of k and na in the solution to reduce the mutual interference of the two elements, and adding cesium chloride to eliminate ionization interference

    摘要本方法用於測定霞石中的鉀、鈉，主要通過在溶樣時加入氫氟酸除去二氧化矽，調整溶液中鉀、鈉的含量，消除互相之間的干擾，加入氯化銫消除電離因素的干擾，提高了分析結果的準確性和重現性，使測定結果更接近化學分析值。
  4. Analysis of k and na in nepheline were curried out with higher precision and repeatability by means of adding fluohydric acid during sample melting to remove sio2, adjusting the ratio of k and na in the solution to reduce the mutual interference of the two elements, and adding cesium chloride to eliminate ionization interference

    摘要本方法用於測定霞石中的鉀、鈉，主要通過在溶樣時加入氫氟酸除去二氧化矽，調整溶液中鉀、鈉的含量，消除互相之間的干擾，加入氯化銫消除電離因素的干擾，提高了分析結果的準確性和重現性，使測定結果更接近化學分析值。
  5. This product usesthe fm radio set code decoding system, has the ultra strongantijamming ability and the extremely low power loss, the reactionrate is keen, the highest synchronous speed amounts to for 1 1, 000second, can satisfy photographic camera of each kind of type shuttersynchronized flash photography request

    該產品採用調頻無線電編碼解碼系統，有超強的抗干擾能力和極低的功耗，反應速度靈敏，最高同步速度達1 1000秒，能滿足各種類型快門之照相機的同步閃光拍攝要求。
  6. The signal format of gps is analyzed, the principle models and mathematical models are established, the ber performance is analyzed in a channel interfered with wide - bandwidth awgn, narrow - bandwidth awgn, transmitted signal, single - tone signal respectively. based on the results above interference methods are discussed and simulated. then the performance of code acquisition and code trace of a digital gps receiver are discussed. the modem of linkl 1 and link4a are modeled and their ber performances are analyzed and simulated in channel s interfered with awgn, single - tone signal and multi - tone signal respectively

    建立了jtids的收發終端的數學模型，分析它在噪聲干擾、相關干擾、互相關干擾下的誤碼性能，提出較佳的干擾方法和干擾碼型，並進行模擬模擬；分析了gps的信號格式，建立了gps的原理框圖模型、信號數學模型，並對其在寬帶噪聲干擾、窄帶噪聲干擾、轉發干擾、單頻干擾等情形下的誤碼性能進行了分析比較，提出相對較佳的干擾方法，並做了計算機模擬，針對一數字式gps接收機中擴頻碼捕獲與跟蹤環的特性進行分析；建立了link11和link4a數據鏈調制解調數學模型，對它們在噪聲干擾、單音干擾、多音干擾等下的誤碼性能進行分析，最後對干擾情況進行了模擬模擬。
  7. Compared with the classical bp algorithm, robust adaptive bp algorithm possesses some advantages as following : ( 1 ) increasing the accuracy of the network training by means of using both the relative and absolute residual to adjust the weight values ; ( 2 ) improve the robustness and the network convergence rate through combining with the robust statistic technique by way of judging the values of the samples " relative residual to establish the energy function so that can suppress the effect on network training because of the samples with high noise disturbances ; ( 3 ) prevent entrapping into the local minima area and obtain the global optimal result owing to setting the learning rate to be the function of the errors and the error gradients when network is trained. the learning rate of the weights update change with the error values of the network adaptively so that can easily get rid of the disadvantage of the classical bp algorithm that is liable to entrap into the local minima areas

    與基本bp演算法相比，本文提出的魯棒自適應bp演算法具有以下優點： （ 1 ）與魯棒統計技術相結合，通過訓練樣本相對偏差的大小，確定不同訓練樣本對能量函數的貢獻，來抑制含高噪聲干擾樣本對網路訓練的不良影響，從而增強訓練的魯棒性，提高網路訓練的收斂速度； （ 2 ）採用相對偏差和絕對偏差兩種偏差形式對權值進行調整，提高了網路的訓練精度； （ 3 ）在採用梯度下降演算法對權值進行調整的基礎上，通過將學習速率設為訓練誤差及誤差梯度的特殊函數，使學習速率依賴于網路訓練時誤差瞬時的變化而自適應的改變，從而可以克服基本bp演算法容易陷入局部極小區域的弊端，使訓練過程能夠很快的「跳出」局部極小區域而達到全局最優。
  8. The potential applications of amr include both civil and military communication, especially non - cooperative communications and communication confrontation, such as identifying signals, supervising signals, distinguishing interference, electronic confrontation, analyzing military threat, etc. on the basis of our analysis to the existing research on feature abstraction, the related feature abstraction methods are optimized in this paper, resulting several effective methods such as the feature abstraction based on transformation domain, stepped voltage level analysis, normalized carrier - free spectral energy analysis, squared signal and fourth powered signal analysis, etc. both the decision theory based on recognition algorithms and the artificial neural network ( ann ) based on recognition algorithms is analyzed, and the former is selected as it is more appropriate for this research

    調制類型的自動識別廣泛應用於民用通信與軍用通信，尤其是對于非合作性通信、通信對抗，比如：信號確認、信號監控、干擾辨識、電子對抗、軟體無線電、電子救援、通信對抗、軍事威脅分析等。本論文在分析現有研究的基礎上，借鑒了已有的特徵提取方法，對相關調制類型特徵提取方法進行了優化，使用了一些有效的方法，如基於變換域特徵提取方法、梯層電平分析方法、剔除載波后的歸一化頻域能量分析方法、信號平方后的頻譜分析方法、信號四次方后的頻譜分析方法等。通過對基於決策理論和基於人工神經網路兩種識別演算法進行分析，本論文選擇了較適合的基於決策理論的識別演算法。
  9. A big part of freshmans don t know how their device is modemed or even the frequency, they usually begin work as soon as they reach the site, interference sometimes caused ; in fact remote controlled flying models are very suitalbe for colony games, knowing each other s frequency can benefit the safety and friends making, why not do that

    有很大部分的初學者不知道自己所使用設備的調制方式甚至頻率，到場就自己在一邊「埋頭苦幹」起來，往往由此引起干擾事故發生。其實遙控模型絕對是適合群體活動的休閑運動，難得有同好知己，到場就應相互點頭問候頻率，既可結交朋友又能確保安全，何樂而不為？
  10. By making full use of favourable narrow - band tracing filter character of pll and by combining the merits of dds such as super fine frequency resolution 、 high frequency accuracy 、 very fast frequency hoping with it, the pll / pll + dds frequency synthesizer presents wide band high quality source and super small frequency hoping step. while the electronically tuned filter abates the image interference and notably improves the selectivity. the theorem of frequency synthesizer and center - frequency - fixed filter is simply but adequately introduced first in this paper

    課題中所採用的pll或dds pll鎖相頻率合成方法充分發揮鎖相環良好的窄帶跟蹤濾波特性，並結合dds的高頻率解析度、高頻率精確度和高速頻率捷變等優點，分別實現了系統所要求的高質量寬帶本振源和小步長頻率捷變；採用電調諧選頻技術，則大大改善了接收機的選擇性和抗干擾能力。
  11. According to the sample area survey ; there are 120 species of plants belonging to 84 gener 47families in the 25 - year - old chinese fir plantation community which will succeed toward the direction simi - ler to the community type before the felling of evergreen broadleaved forest if it is let to develop naturally or the logging residues are not burnt after the felling of the chinese fir plantation due to the superiority of cas - tanopsis carlesii and schima superba in the aspling layer in it

    據樣地調查，該25年生杉木人工林群落的植物有41科84屬120種，群落的外貌特徵以包括藤本在內的高位芽占絕對優勢，葉特徵以革質，單葉，中小型葉為主，由於該群落的幼樹層以米儲和木荷等占優勢，若讓其自然發展或杉木林採伐后不煉山，並排除其它人為干擾，該群落將向與常綠闊葉林採伐前的群落類型相似的方向演替。
  12. Cot1s i deri ng that t he exte ] - ioi - in t el - ference mai n1 y comes from t 11e sea fl o v l11elj i t i s un ( lel ' - i1 t el ", thi s nfr ) j { j1t i ; fi + lk, 7 : f } itft, ? } { t ! : i / cx pal7er veri fj ed t he st i ~ ol1g 1 ~ oi ) ust ness of th is fuxzy va1 - iilb1 e st l ' uctul ' c control method against the mode1 uncertainties and external disturhances, such as the variat ions of the sea current i s sdeed and direct ion, ancl it a1 so coinpared it se1f wi t. h the l > ji ) contl ~ o1 ler in comnlon use and the regu1ar variable structure contro11 er

    論文分別討論了潛器縱向，橫向和航向三個子系統在不同條件下的控制問題，考慮到該潛器潛航時外界干擾主要來自海流，驗證了模糊變結構控制方法對模型參數時變及海流速度、方向變化的強魯棒性，同時將該控制器跟實際工程中常用的pid控制器和常規的變結構控制器的控制效果進行比較，並結合實際情況，將該控制器同縱傾調節相結合進行控制以更好地滿足實際工程的需要。
  13. The political state of mind of these two areas are sometimes parallel, sometimes interfere with each other, sometimes make adjustments to each other, and sometimes resist the other

    時而并行不悖時而相互干擾時而彼此調節時而形成抵牾，成為最近十多年間最復雜的政治文化問題。
  14. This thesis analyzed the error performance of mfsk and mpsk modulator in hf with optimal receiver, studied the shortcoming and strongpoint of several typical short - wave data transmission systems and their performance over fading and intersymbol interference channels. the theory and key technical of adaptive modem is discussed. in the last, an efficient modulation scheme - block coded modulation is introduced into hf radio systems to improve the efficiency of hf data transmission, this paper also proposes a hf data transmission system scheme composed of a block coded modulator and a decision feedback type adaptive equalizer

    本文在對短波數傳兩種常見調制方式fsk及psk最佳解調性能分析的基礎上，討論了幾種採用典型調制技術的短波數傳系統（如時頻調制、多進制頻移鍵控慢跳頻、 chess系統）原理、優缺點以及抗衰落和抗符號間干擾的性能；分析了自適應串列數傳系統抗短波通道衰落和多徑干擾的原理、關鍵技術；在本文的最後引入一種有望解決短波數傳系統低效率狀況的調制方式bcm -分組編碼調制，給出了一個採用bcm技術與自適應均衡技術相結合的短波數傳系統方案，並通過計算機模擬進行了初部驗證。
  15. Second, research and analyze the feature of signal of pulse compression radar, and discuss the principle and characteristic of pulse compression technique, that are linear frequency modulation and phase coding. the above two mathematic model is constructed, and shift - frequency noise is imposed on the models, and anti - nose ability is evaluated and simulated

    通過對脈沖壓縮雷達的信號特徵的研究和分析，通過研究線性調頻和相位編碼脈沖壓縮技術的原理和特點，建立了這兩種雷達的數學模型，並對此進行移頻干擾和相位編碼雷達干擾，並進行干擾性能的評估和模擬研究。
  16. The jamming of two models of pulse compressed radar, linear frequency coded radar and bi - phase coded radar, are studied in this dissertation

    本論文討論了脈沖壓縮雷達中兩種典型的雷達制式：線性調頻雷達和二相編碼雷達的干擾。
  17. Deliberate interference of a transmission on one carrier by transmission on another approximately equal carrier, with wobble or noise modulation

    用波動或噪聲調制另一個近似相等的載波傳輸，人為地干擾一個載波的傳輸。
  18. In chapter 5 the jamming such as phase modulation noise, binary pseudo random sequence and multiple pseudo targets are discussed

    第五章對雷達干擾進行了闡述，主要的干擾信號有連續噪聲調相干擾、偽隨機碼噪聲干擾、多假目標干擾。
  19. We modulate the amplitude of the continuous single tune jamming by noise and produce the continuous noise - modulated jamming. this kind of jamming is effective to pc radar including linear frequency - modulated radar and bi - phase coded radar

    在對單頻正弦波進行噪聲調幅后形成的噪聲調幅干擾對線性調頻雷達和二相編碼雷達都是有效干擾，其干擾特性和射頻噪聲干擾類似。
  20. Ofta s responsibilities include the assignment of radio frequencies, investigation into interference complaints, licensing private telecommunications services, prosecution of illegal use of telecommunications equipment, and coordination with frequency management authorities outside hong kong to prevent interference between radio services

    工作范圍包括指配無線電頻率、調查無線電干擾投訴、簽發私人電訊服務牌照、就電訊器材的非法使用提出檢控，以及與香港以外地區的頻率管理機關進行協調，以防止無線電服務互相干擾。
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