查询词典 numerical signal

This paper use Mirror closed extension to solve the problem of end effect. Mirror closed extension maps the signal into a periodic signal of the ring through the mirror image method, and there is no endpoint, and fundamentally avoids the end effects of EMD and Hilbert transform.

针对这一。。。更多问题，本文利用镜像闭合端点延拓来抑制端点效应，闭合端点延拓法即用镜像法把镜内信号映射成一个周期性的环行信号，不存在端点，从根本上避免了EMD和Hilbert变换的端点效应。

Small device used to increase signal power and offset signal loss caused by coaxial cable and splitting devices.

这种小型设备用于提高信号功率以及铜线电缆和分裂设备引起的偏移信号损耗。

Cobber"s theory that only consider the influence of vehicles, it doesn"t fit in with the signal timing of traffic at intersection in China. This paper consider the influence of not only vehicle but also non-vehicle traffic on signal timing, amend the F.V.

韦伯斯特-B。柯布理论，不适合中国混合交通流的特点，本文考虑混合交通环境下机动车和非机动车对信号配时的影响，对F。

Optical fiber will be in a total reflection in a horizontal displacement, the incident points and reflection point is not coincidence, will lead to optical signal pulse broadening influence of signal transmission.

光在光纤中发生全反射时会产生一个横向位移，入射点和反射点并不重合，将导致光信号脉冲展宽，影响信号传输。

Its input signal should be large-signal, the collector current cosine pulse for a month.

其输入信号应为大信号，集电极电流为一个个余弦脉冲。

Through the processing method basing on wavelets, implementing the removing noise about section gauss noise to colure full TV signal, we resolve the theory and practice problems in the processing of weak signal detection.

通过基于小波分析的处理方法，实现对彩色全电视信号一段被高斯白噪声干扰的降噪，解决微弱信号检测过程中遇到的理论和实践问题。

State machine was made up of register of status and combinational logic circuit. The status can be transferred as presetting before according to control signal. It is the control center of adjust relative action of signal to finish special operation.

状态机由状态寄存器和组合逻辑电路构成，能够根据控制信号按照预先设定的状态进行状态转移，是协调相关信号动作，完成特定操作的控制中心。

Research emphasis is put on thefollowing aspects:First,study of multiwavelet basis(e.g.periodic vector,interpolation vector,multi-dimensional vector)suitable for different practical demands.Second,from perspective of operatorapproximation order,study of normal function approximation operator,contrast and comparison ofwavelet operator and multiwavelet operator and their respective applicable fields.And further,onbasis of the above,exploration of approaches of multiwavelet analysis application in function spacetheoretical research,and higher-lever,more convenient approaches for multi-function spaceapproximation theoretical research.Third,by fully employing unique features of multiwavelet,research action of multiwavelet analysis in the construction of L〓space non-conditionalbasis.Fourth,research such as transient signal analysis,image edge extraction,datacompression,fractal signal analysis.

其一，研究适宜于不同实际问题需要的向量小波基（如周期向量小波、插值向量小波、高维向量小波等）；其二，从算子逼近阶的角度研究一般函数逼近算子、小波算子和向量小波算子的异同点以及较优适用领域；在此基础上，探索将向量小波分析应用于函数空间理论研究的途径，寻找更高层次、更便捷地研究多元函数空间逼近理论的方法；其三，充分利用向量小波所独具的完美性质，探索在〓空间〓无条件基的构造中，向量小波分析的价值；其四，对向量小波适用的信号瞬态分析、图像边缘分析、数据压缩保真、分形信号分析等领域应给予特别的重视。

In order to get reliable diagnosis results,a composite hypothesis of the normal nose signal and faulty noise signal...

试验验证表明，该方法能有效地诊断摩托车发动机存在的活塞击缸故障。

In order to get reliable diagnosis results,a composite hypothesis of the normal nose signal and faulty noise signal is constructed,and by testin that hypothesis,faults can be detected accurately.

试验验证表明，该方法能有效地诊断摩托车发动机存在的活塞击缸故障。

Researches reveal that students who suffer from corporal punishment tend to resort to violence in their future life.

研究表明遭受过肉体惩罚的孩子倾向于在他们今后的人生中使用暴力。

Total sugar of sarcocarp and chlorophyll of pericarp increased firstly, and then decreased afterward along with altitude; Titratable acidity, ascorbicacid and anthocyanin of pericarp were increased along with altitude; The content of protein increased firstly and decreased afterward along with altitude; Carotenoid of pericarp were decreased along with altitude.

果肉总糖和果皮叶绿素含量随海拔高度升高先升高后降低；可滴定酸、维生素C和果皮花青苷含量均随海拔升高而升高；蛋白质在1720m处最大，1420m处最小；果皮类胡萝卜素随海拔升高而降低。