interference modulation 中文意思是什麼

interference modulation 解釋
干擾調制
  • interference : n. 1. 沖突，抵觸。2. 干涉，干預。3. 妨礙，打擾，阻礙物。4. 【物理學】干擾；干涉。
  • modulation : n 調整，調節；（聲調的）抑揚，變化；【音樂】轉調，變調；【無線電】調制。 amplitude modulation 振...
  1. The automatic identification of the modulation types has been applied to many fields such as source identification, interference identification, radio interception, - electronic countermeasures, etc. the modulation recognizer based on the decision - theoretic approach and the constellation diagram is proposed and the signal ' s kurtosis is used as the indicator to differentiate the analogue modulation from the digital modulation

    通信信號調制類型的自動識別廣泛應用於信號確認、干擾辨識、無線電偵聽、電子對抗和信號監測等領域。本文提出基於決策論與星座圖的綜合調制識別器，使用信號的峰度區分調制類型是模擬調制還是數字調制。
  2. In order to achieve high data rates on the severely band - limited underwater acoustic ( uwa ) channels, bandwidth - efficient modulation techniques must be employed, together with some sophisticated signal processing algorithms, such as adaptive equalization technique for the intersymbol interference caused by channel multipath propagation

    在帶寬嚴重受限的水聲通道中實現高數據率通信，必須使用高帶寬利用率調制技術，並結合自適應均衡等技術以有效地克服通道多途傳播產生的符號間干擾。
  3. 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。
  4. 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。
  5. By theory and practice simulation, the several types of constant envelope modulation techniques are analyzed and compared, including theirs modulation principle, phase path, the modulated wave envelope, power spectrums, error bit rate and the influence of its power spectrums of the band - limited and non - linear, etc. especially we have researched the ijf - oqpsk modulation technique, and the performance of its inter - symbol interference and time jitter free, and its strongly resisting of spectral spreading

    結合理論和實驗模擬結果，分析討論了衛星通信中的各種恆包絡調制技術，對它們的調制原理，相位路徑，已調波包絡，功率譜密度，誤碼性能，以及帶限非線性通道對其功率譜的影響等方面都作了研究和比較。特別研究了ijf ? oqpsk在消除碼間干擾和定時抖動方面的性能及其優良的旁瓣特性和抑制頻譜擴展特性。
  6. For implement of wide band modulation, multi - carries and elimination of adjacent channel interference to satisfy ber requirement in wcdma system, which is most popular in 3g technology, the linearity requirement of the base station power amplifier becomes tighter

    以wcdma為代表的第三代移動通信技術，為實現寬帶調制、多載波應用，同時減小鄰通道干擾以滿足通信系統的誤碼率要求，對基站發射機功放的線性指標要求苛刻。
  7. Largeshearing electronic speckle pattern interference system with carrierfrequency modulation techniqu

    載頻調制大剪切電子散斑干涉系統
  8. In this paper, we analyzed the modulation of the interference intensity of each pixel on the time sequence speckle patterns in the time domain and proposed a new phase retrieve method, time sequence phase method ( tspm ), in which the time sequence speckle interferograms are used to obtain the whole field deformation of the object

    本論文通過對序列散斑圖上各點在時間軸上散斑強度調制函數的變化進行分析，提出了一種基於時間序列的散斑干涉場的相位解調方法，進而獲得物體全場變形信息。
  9. This paper applies the technology of frequency agility to radio fuze which has been applied widely in the field of radaf and communication, and introduces a scheme of frequency agility and frequency modulation fixed - distance fuze which has good precision of fixed - distance and strong ability of anti - interference

    本文將應用於雷達和通信領域的頻率捷變技術引入到無線電引信，提出了一種既具有較高定距精度，又具有較強抗干擾性能的新的頻率捷變調頻定距引信方案。
  10. The utilization of high speed dsp can highly increase the performance of anti - interference and anti - detection. the modulation mode, data rate and coding mode can be controlled by configuring the registers of modulator stel - 1109. the viewport and nco frequency control word selection can be accomplished by configuring the demodulator stel - 2105

    Dsp通過i / o讀寫操作，控制調制晶元stel - 1109的讀寫寄存器，用來設置晶元的調制方式、數據速率、編碼方式等；而dsp對解調晶元stel - 2105讀寫寄存器的控制，則對解調的一系列視窗選擇及nco頻率控制字進行了設置。
  11. The frequency difference sensitivity of the modulation mode and the ability to overcome distortion by limiting amplitude of the signal and to overcome interference also affect the performance, too. in this paper, the relationship between the ability to overcome interference and the modulation mode is discussed at first. then the characters in some aspects specif ' ed above of some common modulation mode such as mfsk mpsk ofdm are studied. on this base, some according solutions to the problem of the different frequency - hopping system are put forward. in the past half of this paper, the realization scheme, pcrforemance and improving measures of ofdm are studied

    本文首先較詳細地討論了跳頻抗干擾的能力與調制制度的關系，接著分別研究了幾種常用調制方式（ mfsk ， mpsk ， ofdm ）上述幾方面的性質，針對各跳頻系統存在的問題提出了相應解決方案，在本論文後半部分重點討論了ofdm跳頻系統的實現方案、性能及改進措施。
  12. In the code division multiple access ( cdma ) system, the multiple access interference ( mai ) mitigation capability as well as system capacity are determined, to a great extent, by the correlation properties of spreading sequences ; while adaptive modulation and coding ( amc ) with high spectral efficiency is the key technique to obtain high speed and low symbol error rate ( ser ) performance in mobile data transmission

    在碼分多址（ cdma ）系統中，擴頻序列的特性在很大程度上決定了抗多址干擾（ mai ）能力和系統容量，而高頻譜效率的自適應調制編碼（ amc ）技術則是獲得高速率和低誤碼率（ ser ）移動數據傳輸性能的關鍵因素。
  13. Data flow approach using qpsk modulation, forward error correction and interference with the advantage, meet international standards for data transmission related technical parameters of microwave transmission equipment

    數據流採用qpsk方式調制，具有前向糾錯及抗干擾強的優點，符合國際數據傳輸相關標準微波傳輸設備技術參數
  14. The interference and its processing method of long sequence phase - modulation signal of multitargets in pulse compression are studied emphatically

    重點研究了長序列調相信號多目標對脈沖壓縮的相互影響及其處理方法。
  15. In chapter three, the importance of maintaining the equal optical path between measuring beam and reference beam in measuring horizontal and vertical vibration table are analyzed, and the factors having effect on contrast degree of interference fringe are introduced. for improving the accuracy of laser - vibration - measuring - system, the phase - modulation - multi - period - average method and the vibration isolated of system are analyzed

    第三章分析了光路設計中的等光程問題的重要性，以及影響干涉條紋對比度的相關因素；並從提高測量精度的角度分析了調相多周期平均法和系統的隔振。
  16. The so - called automatic recognition of modulation ( amr ) schemes automatically classifies the modulation types from the samples of received signal by abstracting the related features such as amplitude, frequency, and phase, followed by employing proper recognition algorithms based on the fast digital signal processing techniques and advanced computing technology. the result of amr can be used in the following processing blocks such as demodulation, supervision processing and anti - interference processing and so on

    所謂調制類型自動識別（ amr ）是根據接收信號樣本提取出振幅、頻率和相位的特徵參數，然後藉助信號處理技術和計算機快速處理能力，採用合理演算法進行處理，從而實現對未知已調波調制類型的自動識別，為后繼的解調、監控、抗干擾等處理奠定基礎。
  17. The impact of the conical scan on range profile is analyzed, and the cyclostationary method is used to estimate and dispel the interference of conical modulation. simulation test results show the method can provide good profile

    研究了圓錐掃描測角體制對目標距離維成像的影響，針對低信噪比環境，同樣採用循環平穩方法估計圓錐掃描對信號的調制。
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