It has completed noise mitigation projects at three sites, out of a total of 27.
在合共27项消减噪音工程中，已完成了其中3项。
An optimization algorithm for impulsive noise mitigation in OFDM system is proposed based on the analysis of output SNR of blanking nonlinearity.
该文在消隐非线性输出snr分析的基础上，提出了OFDM系统脉冲噪声处理的阈值优化算法。
There is controversy on background noise modification in railway EIA for noise, which has great influence on assessment methods, assessment results and mitigation measures of railway noise.
目前铁路噪声环境影响评价的背景噪声修正方法存有争议，对铁路噪声的评价方法、评价结果和防治措施的确定有很大影响。
There is controversy on background noise modification in railway EIA for noise, which has great influence on assessment methods, assessment results and mitigation measures of railway noise.
目前铁路噪声环境影响评价的背景噪声修正方法存有争议，对铁路噪声的评价方法、评价结果和防治措施的确定有很大影响。
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