desired signal 中文意思是什麼

desired signal 解釋
期望信號
  • desired : 渴望的
  • signal : n 1 信號，暗號；信號器。2 動機，導火線 （for）。3 預兆，徵象。adj 1 暗號的，作信號用的。2 顯著的...
  1. That is, vibration caused by the first part of the command signal is canceled by vibration caused by the second part of the command. input shaping is implemented by convolving a sequence of impulses, an input shaper, with any desired command

    輸入成型通過把參考輸入信號和一系列脈沖進行卷積，得到成型輸入信號，而成型輸入信號作用於控制對象，其中這脈沖序列就是輸入成型器。
  2. One of which is based on the maximum signal - to - noise ratio ( msnr ) criterion, it can improve the performance of the array system only when the processing gain of the given cdma system is high enough such that the desired signal can become dominant after dispreading. the other is based on the maximum signal - to - interference - plus - noise ratio ( msinr ) criterion, and it has well performance when strong interferers occur

    一種是基於最大信噪比準則的演算法，該演算法適用於cdma系統的處理增益比較大，即解擴以後期望用戶信號遠大於干擾信號的情況；另一種是基於最大信干噪比準則的演算法，該演算法在強干擾存在的情況依然有較好的性能。
  3. A novel communication receiver which uses lapped transform ( lt ) incorporating modified median filter ( mmf ) algorithm is designed for narrow - band interference excision. the lt domain mmf algorithm takes full advantages of the direct sequence spread spectrum signal, as well as the characteristics of lt, performing the transform domain filtering twice. the first filtering locates the position of interference and mitigates most of them. the second filtering is performed in a small neighborhood of the located interference. so lt domain mmf algorithm can completely mitigate the interference without distorting the desired signal. simulation results demonstrate the improved ber performance and increased robustness of our receiver

    本文採用改進的重疊變換域中值濾波演算法進行變換域抗干擾處理.該演算法既考慮到直接序列擴頻信號的特點，同時又利用重疊變換的特性對變換域系數進行了二次濾波.該演算法節省處理時間，並且不需要有關干擾的先驗知識，系統性能不會隨干擾頻率變化而變化，因而是一種很穩健的處理方法
  4. The results of the simulations show this method can keep the amplitude of the desired signal, restrain the interference signal, and keep the output power of array to minimum

    模擬表明，採用自適應演算法能夠在保證接收方向回波信號幅度保持不變的條件下，抑制干擾信號，且使陣列輸出功率最小。
  5. Digital signal processing technologies were used to produce spatial and directional beam in adaptive antenna. then the main beam aims at the coming direction of desired signal and the side lobe points to the coming direction of interference signals

    自適應天線利用數字信號處理技術，產生空間定向波束，使天線主波束對準期望信號到達方向，旁瓣或零陷對準干擾信號到達方向。
  6. Once stored, the signals can be transcribed back into an exact replication of the original signal whenever desired. ultra high speed data acquisition is the main technique in drfm. the most common use of the drfm is for replication of complex, coherent signals usually representing radar return signals

    數字射頻存儲器是現代電子對抗系統中有源雷達干擾機的主要組成部分，用於將接收到的雷達信號的精確的復制信號返回該雷達系統，以此來混淆該系統。
  7. This implies that the cross correlation between the spreading sequence of the user of interest and the signal from a strong interfere can be larger than the correlation with the signal from the desired user

    深入分析自然免疫現象的內在動因，優化和完善現有演算法的模型與結構體系，拓展應用領域將是我們下一步研究的重點和努力的方向。
  8. Thus, it can ensure no cancellation of the desired signal when minimizing the cm cost function to suppress interference. in this paper, delay - hypothesized matched filter based on minimum kurtosis criterion is used to initialize code - constrained cma

    通過對均衡器的權向量增加約束，使其在迭代更新最小化代價函數時，能在有效抑制干擾的同時保證期望用戶信號不被抑制。
  9. Deerslayer waited a little to make certain that he had at last gained the desired position, when he gave the signal agreed on.

    殺鹿人稍微停了一下，看清了自己所要到達的目的地，就發出了約定的信號。
  10. Addressable - able to signal from the headend or hub site in such a way that only the desired subscriber ' s receiving equipment is affected, making it possible to send a signal to a subscriber to change their level of service ( e. g. adding a new premium channel )

    有選址功能的- -有選址功能的有線電視設備，能從有線電視設備前端或電線插孔發出節目信號，只有那些有需求的用戶的接受設備才能收到此信號，這就能做到向用戶發出信號來改變他們的服務水平，比如增加一個新的付費頻道等。
  11. Blind beamforming ( bbf ) is concerned with the reconstruction of source signals from the outputs of a sensor array without a priori information of the direction of the desired source, relying instead on signal characteristics and array structures

    盲波束形成無需知道目標波達方向等先驗信息，直接利用信號、基陣自身的特性，就可從基陣的輸出采樣信號中恢復出期望信號。
  12. The recording of measured values is started manually, time - controlled or by an external signal, as desired

    可以根據需要手動，定時，或由外部信號觸發開始記錄測量數據。
  13. But when the interference and desired signal ’ s frequency are overlapped, we must use adaptive antenna to separate them in spatial domain

    但是當干擾與跳頻信號頻率相同時，仍會形成干擾。
  14. In the end, this paper considered detecting the desired user signal for uplink ds / cdma system. in that case, we need to suppress both mai and inter - chip interference ( ici ) caused by multipath propagation

    最後，本文研究了在ds cdma的上行通道中，同時存在多用戶干擾和多徑傳播引起的碼間干擾的情況下，對期望用戶信號的檢測。
  15. ( 5 ) using the method apd, it select a new drive signal s = x1 - cx3 to synchronize the response system, the theory analysis and numerical simulation results show that it can synchronize two hyperchaotic systems completely with the drive signal s = x1 - cx3, comparing with the method of selecting signal in literature [ 114 ], with the drive signal s = x1 - cx3, it can shortens the transient period of synchronization ( 6 ) using the outside standard signal to control 4d oscillator hyperchaotic system, basing on the stability theory, constructing the following lyapunov function it gets the controller as following : the theory analysis and numerical simulation result show : using the controller above, it can control the system to reach any desired stable point and period orbit

    （ 5 ）採用apd方法，選取新的驅動信號s x1一ex來同步響應系統，理論分析和數值結果表明：採用本文的驅動信號可以使兩個超混飩系統同步，和文獻1141相比，採用本文的驅動信號可使同步暫態過程更短。歷）利用外部標準參考信號個和o來控制振子超混燉系統，基於穩定性理論，通過構造l ） apunov函數， kgb （ xz4l4 ） 『 n ） l小t4 xzcko k0卜ro 』十個n xsn n一大0 『得到控制器表達式如下： u ； zr zr 。 （ 1 b ） 』 x 。
  16. Unwanted electrical energy in a circuit that is unrelated to the desired signal, s - ources of noise are most often generated by some type of switching circuit, common sources include switching voltage regulators and clocked sighals such as digitol crcuits

    指在一電路中與所要訊號無關的多餘電能，雜訊的來源通常為某些形式的切換電路，常見的雜訊為切換式電壓，調整器及時脈訊號，如一些數位電路。
  17. The non - blocking matrix of figure 1 - 15 allows simultaneous connection of multiple input / output signal paths, up to the full number of matrix inputs, if desired

    圖1 - 15中的非分塊矩陣可以同時連接多個輸入/輸出信號路徑，最多可達到矩陣輸入的最大數量。
  18. Secondly, the stationary points of the lccm cost function are analyzed to demonstrate that the lccma attempts to suppress multipath of the desired user ' s signal rather than exploit it

    其次，通過分析代價函數的穩定點，證明lccma演算法只是試圖抑制期望用戶信號的多徑，而不是利用它。
  19. In electronics, undesirable low frequency currents interfering with a desired signal, and usually caused by a poorly screened alternating mains supply

    在電子學領域，一種不希望發生的低頻電流，它干擾所要求的信號。通常這種現象是由於交流供電線路屏蔽不良引起的。
  20. Beamforming comes from smart antenna with strengthening desired signal and suppressing inter - users interference as its typical technical superiority. it is also the base to realize sdma ( space division multiple access )

    波束形成技術源於智能天線、增強期望、抑制用戶干擾是其典型的技術優勢，也是sdma （ spacedivisionmultipleaccess ）能夠得以實現的基礎。
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