查询词典 complexity

In this paper, a new wide-neighborhood path-following algorithms for uniform P- function nonlinear complementary problems is presented, and its convergence and computational complexity is discussed. The results indicate that the algorithm is a polynomial-time one.

对一致P-函数非线性互补问题，提出了一种新的宽部域N(上标-下标∞路径跟踪算法，并讨论了该算法的收敛性及计算复杂性，分析结果表明，所给方法是一多项式时间算法。

Furthermore, the complexity between the relationships of synchronizability and network structural parameters are discussed via two simple graphs, and the effects of complementary graph, edge-addition and graph operation on the synchronization of complex networks are elaborated.

其次以两个简单图指出同步能力与网络结构参数的关系复杂，并给出补图与加边对同步研究的意义，然后给出图运算在复杂网络同步中的作用。

Two-dimensional matrix operations and one-dimensional Fourier transform, if the changes to what can be achieved to complete the integral operation matrix method can reduce computational complexity.

详细说明：用矩阵运算进行二维和一维傅立叶变换，如果改动一下，就可以实现矩阵方法来完成积分操作，可以减少运算量。

Considering the computational complexity, we use the CP complex conjugate correlation method to test which CP result in the largest correlation and that is the determined CP length.

考虑到计算复杂度的问题，我们使用循环字首的相关性，找出这四种长度中相关性最高的长度就是我们的检测结果。

In the condition of long pseudo code and large carrier Doppler frequency shift, the number of FFT points in the conventional synchronous acquisition algorithm is too large, the complex multiplication is of high computational complexity and large time cost, and the parameter evaluation acquired in a long duration is not applicable for carrier tracking because it is too old.

当伪码较长、载波多普勒频移较大时，传统的同步捕获算法进行的FIT点数较多，复数来加运算量大，耗时长，而在校长的捕获时间内，捕获得到的参数估计过于陈旧，无法应用于载波跟踪，为此，文中提出了一种改进的快速同步方法。

to reduce the impact of carrier frequency offset in ofdm system,this thesis designs a new carrier frequency offset estimation scheme for ofdm system.the carrier frequency offset estimation includes acquisition and tracking.we adopt variable step size adaptive algorithm.the acquisition range of the proposed algorithm is as large as one half of the overall signal bandwidth.through this method we can not only avoid the feedback by using forward error correction,but also reduce the times of complex multiplication in order to reduce the power consumption of the system.this algorithm not only has low complexity and fast convergence nut also can improve the demodulation performance of ofdm system.computer simulation illustrates the superior performance of the proposed algorithm with regard to estimation accuracy in both awgn channel and multi—path channel.

摘 要：为了减小正交频分复用系统受频率偏差的影响，在ofdm系统中设计了一种新的载波频偏估计算法。频偏估计包括跟踪和捕获两个阶段，文中采用变步长自适应算法来进行跟踪，这个跟踪算法的捕捉范围是整个信号带宽的一半。通过此方法，不但可以利用前向纠错的方式来避免反馈，而且可以缩减复数乘法的次数以降低计算复杂度和系统功耗。该方法运算复杂度低，并具有较好的收敛性，能改善odfm的解调性能。从计算机的仿真效果可以看出无论是在awgn信道上还是在多径信道上都表现出了卓越的性能。

The simulation results show that the complexity of the generalized complex sphere algorithm is significantly lower than that of the exhaustive search scheme.

仿真结果表明该广义复球形解码算法的复杂度明显低于采用穷尽搜索策略的复杂度。

I think the key point is complexity of design.

我想最主要的原因是设计的复杂性。

In this world of change and complexity, the need for information is of greatest importance.

在这个复杂和多边的世界中，对于信息的需求是至关重要的。

In this world of change and complexity, the need of information is of greatest importance.

在这个变化万千的复杂社会里，信息的需要是最为重要的。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。