nulling 中文意思是什麼

nulling 解釋
零位，調零無效
  1. Neural network - based adaptive nulling with multiple - beam antennas

    基於神經網路的多波束天線自適應調零
  2. Before using phase - only algorithm to achieve nulling, estimations of the number of interferential sources and the doa of interferential signals are needed. so, the spatial spectrum estimation basd on the maximum likelihood method ( capon method ) and music algorithm used for detecting the number of interferential sources and the doa of interferential signals are discussed in the second chapter

    在採用phase - only演算法進行波束置零之前，需要估計干擾源的方向和個數，因此本文還在第二章介紹了發射數字波束形成中用於測定干擾源個數和方向的空間譜估計法? capon演算法和music演算法的測向原理，並分析了它們的性能和優缺點。
  3. The gravity is measured by nulling the beam.

    重力值是通過使橫臂恢復零位而測定的。
  4. Smart antenna has been widely researched in communication and signal processing, the adaptive beamforming algorithm is the key technique of smart antenna. it could adaptively steer the array directional pattern to form the main narrow beams with high gain in the direction of the users " signals while deeply nulling the interference signals. it is an effective way to realize the optimal receiving of the interesting signals

    智能天線技術是目前通信和信號處理等領域的研究熱點，自適應波束形成演算法的研究是智能天線的一個關鍵技術，它能夠自適應地控制天線陣方向圖在用戶信號方向產生高增益窄波束，在干擾信號方向產生較深的零陷，是實現用戶信號最佳接收的有效方法。
  5. This practice is similar to the use of explicit nulling to help the garbage collector, which regular readers know that i do not recommend in general, but in this case the cost of maintaining garbage in a session is so much higher because of replication that it is worth trying to help the container in this way

    （這種做法類似於使用顯式nulling以幫助垃圾收集器，老讀者知道我一般不建議這樣做，但是在這種情況下，因為有復制，在會話中保持垃圾的成本要高得多，因此值得以這種方式幫助容器。 ）
  6. But the original blast algorithm has a very high computational cost because of the nulling and cancellation step. on the other hand, the algorithm also needs an optimal detection ordering to restrain the effect of error propagation and improve the detection reliability

    常規blast演算法由於需要進行大量的線性迫零（矩陣求逆）和串列符號刪除等運算，計算復雜度非常高，另一方面，演算法還需要尋找最優的信號檢測順序來消除誤差傳遞的影響。
  7. Satellite digital nulling antenna receiving technology

    星載數字調零天線接收技術
  8. The most important feature of phase - only nulling method lies in only making use of phase perturbations for controlling pattern ' s nulls, namely, amplitude of weights is fixed

    唯相位（ phase - only ）方向圖置零方法是一種只利用陣列單元的相位擾動對方向圖的零點進行控制的波束形成方法。
  9. Next month, we ll wrap up our exploration of garbage collection by looking at some performance hints and myths about garbage collection, including the true cost of object allocation, the costs and benefits of explicit nulling, and the cost of finalization

    下個月，我們將討論一些有關垃圾收集的性能神話（ hints and myths ） ，包括對象分配的真實成本、顯式賦空的代價和好處以及結束（ finalization ）的代價，以此來完成我們對垃圾收集的探討。
  10. Even so, would explicitly nulling that variable improve performance

    即使如此，顯式地賦空變量能夠提高性能嗎？
  11. The whole discussion is further extended in the article " nulling variables and garbage collection " see

    更加深入的討論請參見「賦空變量和垃圾收集」這篇文章。 （參見
  12. Nulling a variable is simply explicitly assigning null to the variable, as opposed to just letting references go out of scope

    賦空變量是指簡單地將null值顯式地賦值給這個變量，相對于讓該變量的引用失去其作用域。
  13. Variable just after the method completes. so if the jvm does the equivalent of the nulling for you, how can explicitly nulling a variable ever help

    既然java虛擬機可以執行等價于賦空的操作，那麼顯式地賦空變量還有什麼用呢？
  14. Staying on the subject of garbage collection, one really fascinating discussion concerned whether there was a performance advantage to explicitly nulling variables

    一談到垃圾收集這個主題，總會涉及到這樣一個吸引人的討論，即顯式地賦空變量是否有助於程序的性能。
  15. Although explicitly nulling variables should normally have no effect, there are also pathological examples where it could have a significant negative effect on performance

    雖然顯式賦空變量一般應該沒有影響，但總有一些反面的例子證明這樣做會對性能產生巨大的負面影響。
  16. In order to make full use of the abilities of transmitting function modules, phase - only method is an optimal solution for radiation nulling

    為了充分利用發射功能組件的能力，在發射模式中對方向圖零點的控制應該採用唯相位的波束置零方法。
  17. Nulling variables and garbage collection

    和垃圾收集
  18. Object, and now it can be garbage collected. this elimination of the reference is equivalent to nulling the

    於是不再有對該stringbuffer對象的引用，現在它就可以被當作垃圾收集了。
  19. The technology of digital beamforming ( dbf ) can dramatically increase array antenna performances. these performances include fast adaptive pattern nulling, ultra - low sidelobes, closely spaced multiple beams, adaptive space - time processing, high resolution direction fiding ( df ) and increased capacity for band - limited communications systems

    數字波束形成（ dbf ）技術可顯著提高陣列天線的性能，這些性能包括：快速自適應波束置零、超低副瓣、密集多波束、自適應空時處理、高分辨測向和大容量有限帶寬通信等等。
  20. Phase - only. nulling method is not only applied to reception pattern but also radiation pattern. however, this method only uses information of weights so that equations for defining phase perturbations are generally unlinear

    由於這種方法只利用了權系數的相位信息，確定相位擾動（或權系數）的方程組一般都是非線性方程組，求解比較困難。
分享友人
分享到 Line

分享到臉書