查询词典 Signal-to-Noise

Time-Dependent Fourier Transform was used for the reason of the light signal is random signal.

根据光信号的随机特性，确定了信号的分析方法：短时Fourier变换。

The design, analysis and calculation of instrument machine structure, the circuit of infrared emission and receival, the design of direction detection and signal processing circuit, the oil level signal collection, processing, and display are finished in mis article.

本文重点完成了磁式光纤液位探测器机械结构的设计、分析和计算，红外光发射与接收电路、倍频辨向电路和信号调理电路的设计，以及液位信号的采集、处理和显示的设计。

The proportional reducing valve changes the electric signal into a hydraulic signal.

比例减少的阀门改变电信号到一个水力信号。

On the basis of shock wave characteristic of the supersonic projectile and the detailed analysis of measured datas,a method of decomposing and reconstructing the trajectory shock wave signal and muzzle blast wave signal is proposed and the characteristic parameters for positioning sound source and calculating trajectory vector with regular tetrahedron detection array are extracted.

根据空气动力学原理，在阐述超音速弹丸的弹道波特性的基础上，通过详细分析实测的声信号，提出了弹道波信号和枪口冲击波信号的小波分解和重构方法，提取了利用正四面体探测基阵进行声源定位和弹道矢量计算的特征参数，获得了满意的实验结果。

The input signal of the intermediate relay is the coil s make-and-break, and the output signal is the action of the contact.

中间继电器一种用来增加控制电路中的信号数量或将信号放大的控制类低压继电器。

This thesis focuses on investigating the theory of the representation of signal in wavelet frame and associated algorithms, and on exploring the applications of wavelet transform in signal recovery.

本文围绕着信号的小波标架表示理论和算法进行了一系列问题的研究，并探讨了小波变换在信号恢复问题中的应用。

The analysis of the weak signal circuit, amplifying circuit of the signal and power circuit in the thermal conductivity detector has been done, and the characteristic of the circuits with the rhenium tungsten filament is designed.

针对气相色谱热导检测器的弱信号失真和电源不稳定问题，研究与设计热导检测器的弱信号测量电路、信号放大电路以及电源电路。

Ridge loaded ring plane circuit ; Slow wave structure ; Small signal gain ; Large signal

脊加载环板结构；慢波系统；小信号特性；大信号特性

In the system, a finepositioning window signal generating circuit redundant, sample and hold circuit of positioning error signal using no traditional charge/discharge method but high-speed switches and operational amplifier integrators, and cross-zero detector with threshold for higher reliability, is originated by the author in this paper.

综合面伺服和扇区伺服的各自优点，设计完成了4000 TPI光刻伺服解调系统：在设计中，首创了带冗余的精定位窗口信号生成电路，采用高速模拟开关和运放积分电路代替传统的电容充放电法，以完成精定位位置误差信号的平均与采样保持，使用带阈值的过零检测电路提高过道脉冲的可靠性。

Theoretical solutions of overlapping factor, amplitude of signal and pump are obtained by assuming sech pump pulse. The power distribution of signal is also obtained.

将泵浦脉冲取为双曲正割形式，得到交叠因子、信号光振幅、泵浦光振幅的解析解，及信号功率沿光纤的分布。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。