噪声抑制

The simulation result shows that the approach can effectively limit high frequency random noise of altimeter and compensate delay error.

仿真结果表明该方法可以有效地抑制高度表的高频随机噪声和补偿其延迟误差。

Theoretical analysis and experimental results show that MW-CDMA systems suppress multiple-access interference and ambient noise well.

理论分析和实验结果表明这种系统可以很好地抑制多址干扰和环境噪声，同时也为减少解码的计算量提供了新的思路。

Theoretical analyses and experimental results show that MW-CDMA systems suppress multiple-access interference and ambient noise well.

理论分析系和仿真结果表明，这种系统可以很好地抑制多址干扰和环境噪声。

An adaptive filter based on Data-Reusing Least-Mean-Square algorithm has been proposed and applied in magnetocardiography to suppress ambient noise.

提出了一种基於数据重置最小均方算法的自适应数字滤波器，并将其应用於抑制心磁信号的背景噪声。

Fully and clearly analytic expression of multiwavelet transformation is given .The experiment of speckle reduction to US image is implemented by choosing local error as threshold. Results show that multiwavelet transformation is useful for speckle reduction and there have little noise and reserve important image features such as boundary when compared to results obtained from existing the denoising methods alone.

在二维图像阵列的应用方面，通过采用局部方差作为阈值，对超声斑纹图像进行阈值化去噪处理的实验结果表明，多小波变换在有效抑制斑纹噪声的同时，相对于其他方法还能更好地保留原图像的边界等重要特征信息。

A MMSE multiuser detector alleviating edge effect with low complexity is proposed and its asymptotic efficiency,"near-far" resistance and computational complexity are qualitatively analyzed.

该检测器缓解了异步系统因截断处理而受到边缘数据的影响，在抑制多址干扰以及背景噪声上获得了优异的性能折中。

It claims these can eliminate more than 90% of background noise.

它称其产品可以抑制90%的背景噪声。

The principle and process of detecting weak signal by using Duffing oscillator are discussed in detail.

传统的检测方法总是千方百计地通过抑制噪声来检测有用信号，可是在抑制信号的过程中不免使有用信号受到损失，因此这是一种两败俱伤的方法。

Secondly, on the basis of the analysis of the spatial-temporal feature of background and infrared targets in infrared sequence, a method for clutter suppression and noise removement based on the association of spatial self-adaptating Two Dimensional Least Mean Square background predict and temperal Higher-Order Cumulant is presented, and its improved version suitable for strong edge rejection and gaussian noise suppression is proposed.

然后针对红外图像序列中弱小目标和背景的空间和时间特性，提出了一种空域改进的自适应二维LMS背景预测和时域高阶累积量相结合的杂波抑制和滤波降噪的预处理方法，理论和实验结果表明，该方法对于抑制强起伏的红外背景杂波和去除高斯噪声的影响非常有效。

It is demonstrated that the frequency drift will break up the phase-locked state of the laser array and induce the spatial instability of the far-field intensity due to phase noise. It is also found that although the evanescent coupling between elementary lasers can restrain these effects to some extent, the restrainability is too limited to be effective when the frequency drift is relatively strong.

通过对耦合激光器阵列动力学方程的数值研究发现，频率漂移将破坏激光器阵列的锁相状态，并引入相位噪声，导致输出远场光强分布不稳定；研究还发现：倏逝波耦合能够对频率漂移的影响起到一定的抑制作用，但这种抑制只在频率漂移较弱时才有效，因此，如果将该阵列用于光束合成，加入相应的抗干扰措施还是很必要的。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。