1) counteract
[英][,kaʊntər'ækt] [美]['kauntɚ'ækt]
抵消
1.
According to the calculating imbalance acceleration at the terminal of time interval and the system s dynamic equation, the method has been deduced to solve the calculation perturbation in calculating time-step, more, two approaches has been taken to counteract the disadv.
由Wilson-θ法积分计算出的时间步长终点不平衡加速度和系统的动力平衡方程,本文导出了时间步长内计算扰动的确定方法,并进一步采用①同步计算消除计算扰动效应和②后续步计算消除计算扰动效应,两种途径抵消其不利影响。
3) adaptive noise cancellation
噪声抵消
1.
Genetic Algorithm Approach to Mixed Fixed H_2/H_∞ Optimal Adaptive Noise Cancellation;
基于快速遗传算法的固定阶H_2/H_∞自适应噪声抵消器
2.
Adaptive Noise Cancellation Using Adaptive Fuzzy Neural Networks Algorithm;
基于自适应模糊神经网络的噪声抵消器
3.
In order to avoid the trap of local minima,a design method based on the genetic algorithm was introduced to treat the nonlinear optimization of the fixedorder optimal adaptive noise cancellation.
讨论了同一噪声源多传感信号的自适应噪声抵消器的设计方法·针对同一信号源的多传感信号,采用快速遗传算法获取多路信息融合器(LC)的权系数及自适应噪声抵消器的系数,克服了基于梯度的搜索算法和随机搜索等算法获取最优滤波器参数难的问题·利用遗传算法自适应调整LC的权系数,克服了采用并行噪声抵消器的输出平均作为估计信号时,可能造成估计误差太大的缺陷·仿真结果表明,该自适应噪声抵消器的设计方法,不仅实现简单、运行时间短,而且充分利用了多传感信号的信息,其去噪效果良好
4) noise cancellation
噪声抵消
1.
Application of ELMS algorithm in noise cancellation
ELMS算法在噪声抵消中的应用
2.
Starting with an adaptive noise cancellation technique-least mean square(LMS) method-to separate voice signals from strong background noises and, specifically, analysing the performance of this algorithm to find its demerits such as sluggish convergence and narrow wave band of signal extraction, an improved algorithm of adaptive least mean square with momentum factor is presented.
采用从强背景噪声中提取话音信号的自适应噪声抵消技术———最小均方误差(LMS)入手,对该算法的性能进行了分析,针对其收敛速度慢、提取信号频带窄的缺点,提出了改进的有动量因子的自适应最小均方误差算法(MLMS)。
3.
With the development of communication technology,self-adaptive noise canceller(ANC) is widespread applied in many fields,and adaptive noise cancellation technology is playing very important role in signal processing.
随着通信技术的发展,自适应噪声抵消器在现在信号处理中得到越来越广泛的应用。
5) echo canceller
回波抵消
1.
Research and Implementation of Echo Canceller Based on FPGA;
基于FPGA的回波抵消算法研究与实现
2.
This paper introduces the design and implementation of 2/4 lines speech interface and echo canceller.
文章介绍了一种2/4线话音接口和回波抵消器的设计与实现方案,该方案实现了2/4线的话音接口,包括A/D、D/A变换,ADPCM编解码,自适应回波抵消等。
3.
we provide an efficient way to implement an adaptive echo canceller.
在分析回波形成原理及其对语音和数据通信质量影响的基础上 ,给出了实现自适应回波抵消器的一种有效方
6) echo cancellation
回声抵消
1.
In view of the problem of noise reduction and echo cancellation based on vehicle hand-free phone system,according to the environment in the car,the article uses a kind of improved serial adapted echo cancellation machine structure.
针对车载免提系统去噪声去回声的问题,根据车内具体环境,采用改进的串联自适应回声抵消器结构及改进的谱减法来去除噪声,用带有DTD结构和改进的自适应NLMS算法来实现回声的去除,并用TI公司的DSP TMS320VC5402作为处理单元,实现了车载免提系统的去噪声去回声。
2.
In this paper,the delay and echo of the VoIP system is first discussed,in IP network,and then,the basic echo cancellation algorithm is reviewed.
文中首先论述了VoIP(Voice Over IP)技术中的延迟和回声问题,并回顾了IP电话中基本的回声抵消算法,最后结合IP网络的长延迟特性给出了一种基于延迟估计的回声抵消优化算法。
3.
The computer simulations confirm that the novel modeling system can be widely applied to echo cancellation sy.
计算机仿真表明,该建模系统在回声抵消、语音增强等领域均有很好的应用前景。
补充资料：抵消
抵消
undoing
抵消(undoing)亦称“解脱作用”。一种在潜意识中操作的心理防御机制，指一个人以象征性的、反向的活动或事物来抵消个人所不能接受的和已经做了的事，希望以此解除自己的焦虑。例如，某些人做了对不起别人的事情后，热衷于宗教活动，或将靠不当手段得到的财富用来修造庙宇，借此减少罪恶感和自我谴责的内心痛苦。某些强迫症病人所表现的强迫性仪式动作，也可以看作“抵消”机制的表现形式。 (梁宝勇撰牟文博审)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条