threshold function meaning in English
阈函数
Examples
- Both the dual and complement of such functions are also threshold function .
一个函数的对偶及都是临界值函数。 - The de - noise results of different threshold and different threshold function were compared for pulp thickness signal
比较了选择不同阈值及不同阈值函数对纸浆浓度信号去噪的效果。 - Appropriate threshold and threshold function should be selected to fit the signal process goal when the method is applied . 3 ) developed a de - noise method based on translation invariance wavelet transform . the method performed the cycle - spinning for the signal to be de - noised
3 )针对donoho阈值去噪方法对小波基的平移依赖性而在信号奇异点产生的pseudo - gibbs现象，给出了一种平移不变小波变换去噪方法。 - The time - frequency of the wavelet transform and the signal wavelet decomposition - reconstruction algorithm based on the multi - resolution analysis are analyzed . the signal local singularity under the wavelet transform are studied . the difference between between mallat ' s maximun modulus algorithm and donoho ' s waveshrink algorithm are analyzed , too . the denoise effect of different threshold and threshold function are studied . base on compare the advantage and disadvantage of donoho & johnstone threshold and believing - region threshold , a modified algorithm is developed : combining threshold distinguishing and shield filter method
讨论了基于mallat理论最大模数方法以及基于donoho理论的阈值萎缩去噪方法的差别，研究比较了不同阈值规则与阈值函数对去噪效果的影响；在此基础上，结合统一阈值和置信区间阈值各自的优缺点，提出阈值判别和屏蔽滤波相结合的方法。 - The de - noisingresults of different threshold and different threshold function are analyzed to verifythe feasibility and effectiveness of the method . furthermore , three data compression methods are introduced and compared inthe paper , which are based on fourier transform , wavelet transform and waveletpacket transform . a novel synthesis algorithm for complex electric signal , based onfourier transform and wavelet packet transform , is proposed to compress the powerquality disturbance data in this paper
根据小波包变换具有高分辨率的特点,给出一种基于小波包变换的去噪方法,利用仿真电压扰动波形,比较了在选择不同阈值和阈值函数时对含噪电压扰动信号的去噪效果,对去噪方法的可行性和有效性进行了效验。