数值滤波 meaning in English

numerical filtering

In this scheme digital demodulator is used to detect ifog ' s signal , digital phase ramp modulator is used as feedback controlling and digital filter is used to limit noise and lower the bits of a / d ? d / a converters
闭环方案中，采用数字解调方案进行信号检测，采用数字相位阶梯波调制技术进行反馈控制，采用数字滤波、数值滤波降低噪声和消除a / d 、 d / a转换死区误差。
And the paper expatiates on the further research on the optimum algorithm for solving the problem of noise disturbance , and experiments to examine its effect to remove noise . thus it discusses how to select the width of numerical value filter on the basis of a compromise in pitch detection and reconstructed speech quality
最后本文得出结论认为选择数值滤波算法分析窗的宽度需要综合优化算法中数值滤波对基音检测和合成语音质量这两方面不同的影响，而不单单只是考虑它对其中一方面的影响。