nulling造句
例句与造句
- 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
由于这种方法只利用了权系数的相位信息，确定相位扰动(或权系数)的方程组一般都是非线性方程组，求解比较困难。 - A nulling algorithm based on a modified genetic algorithm , which is a feedback algorithm decided by power , presented can suppress jamming in the direction different from that of signals effectively
摘要提出了一种阵列天线干扰抑制的改进遗传算法，在射频端基于功率判决直接通过调节权系数进行波束合成，可以有效地抑制与信号方向不同的干扰。 - For example , iteratively or recursively nulling elements of a collection where the collection object would otherwise be eligible for garbage collection actually adds overhead to a program rather than helping the garbage collector
例如，迭代地或者递归地赋空集合内的元素使得这些集合中的对象能够满足垃圾收集的条件，实际上是增加了系统的开销而不是帮助垃圾收集。 - 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
常规blast算法由于需要进行大量的线性迫零(矩阵求逆)和串行符号删除等运算,计算复杂度非常高,另一方面,算法还需要寻找最优的信号检测顺序来消除误差传递的影响。 - 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
下个月，我们将讨论一些有关垃圾收集的性能神话（ hints and myths ） ，包括对象分配的真实成本、显式赋空的代价和好处以及结束（ finalization ）的代价，以此来完成我们对垃圾收集的探讨。 - It's difficult to find nulling in a sentence. 用nulling造句挺难的
- In fact , with the explicit nulling , the loop creates five times as many objects in two seconds as without the explicit nulling - but only if you choose objects that are big enough to just fill eden , about 500 kilobytes for the default 1 . 4 jvm configuration on windows
实际上，在显式赋空的情况下，该循环在两秒钟内创建的对象个数是没有显式赋空时的5倍但是仅当您选择创建的对象要足够大而可以填满eden时才是如此,在windows环境、 java虚拟机1 . 4的默认配置下大概需要500kb 。 - 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
数字波束形成（ dbf ）技术可显著提高阵列天线的性能，这些性能包括：快速自适应波束置零、超低副瓣、密集多波束、自适应空时处理、高分辨测向和大容量有限带宽通信等等。 - 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
（这种做法类似于使用显式nulling以帮助垃圾收集器，老读者知道我一般不建议这样做，但是在这种情况下，因为有复制，在会话中保持垃圾的成本要高得多，因此值得以这种方式帮助容器。 ） - 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
智能天线技术是目前通信和信号处理等领域的研究热点，自适应波束形成算法的研究是智能天线的一个关键技术，它能够自适应地控制天线阵方向图在用户信号方向产生高增益窄波束，在干扰信号方向产生较深的零陷，是实现用户信号最佳接收的有效方法。 - 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
在采用phase - only算法进行波束置零之前，需要估计干扰源的方向和个数，因此本文还在第二章介绍了发射数字波束形成中用于测定干扰源个数和方向的空间谱估计法? capon算法和music算法的测向原理，并分析了它们的性能和优缺点。
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