查询词典 signal

The differential system and pulse polarity discriminating system is improved and the hardware are made which is adaptive for the on-line detection system. The pulse polarity can offer control signal for follow-up sampling unit to do some signal digital processing.

并应用改进的差动平衡法和极性鉴别法研制了抗干扰系统，实验证实该抗干扰系统提高了整个检测系统的抗干扰能力，有利于后续系统对信号做进一步的处理。

The system controls a tunable fiber Fabry-Perot filter with sawtooth wave voltage and synchronous signal of its digital phase to interrogate FBG sensors in a single fiber. Meantime, a reference FBG and a digital thermometer provide an accurate reference wavelength, which is used to calibrate the wavelength readout of the TFFP in real-time by a digital signal processor.

解调系统利用锯齿波电压信号和数字相位同步信号控制可调谐光纤法布里珀罗滤波器，对光纤光栅传感器阵列进行扫描式寻址，同时采用非测量环境中的参考光栅和数字温度计提供精确的参考波长，并由高速数字信号处理器实时校准滤波器的波长读取值，很好地消除了滤波器调谐的温度漂移、非线性和蠕动性引起的测量误差。

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。

Aimed at the use of underwater active detection system, an analog pretreatment circuit is designed. More than one amplifier and two filters are used to process the signal. The signal can be amplified and self-excitation is avoided. The series of AD867X are used to restrain the circuit noise.

针对水下主动探测系统的应用，设计了一种模拟预处理机，该电路采用分级放大结构，并使用两级滤波器对信号进行滤波处理，在达到对信号放大倍数要求的同时避免了放大器自激，采用噪声性能好的AD867X系列芯片有效抑制了电路噪声对信号的影响。

In order to study characteristics of the early signal with TEM, the authors formulated self-induction formulae for single coil and multi-turn coils, deduced theoretical expressions for the amplitude of the loop self-induction signal, and gave the induction of single coil and multi-axial coils. The response curve of buried object affected by the coils nod the length of loop's change are also studied.

为研究瞬变电磁早期信号的特性，讨论了多匝线圈与单匝线圈的自感系数的关系，得出线圈自感信号振幅的理论表达式，推导了单匝和多匝回线的电感公式，分析了回线匝数和回线边长的变化对目标体响应曲线的影响。

Firstly, the application of single channel signal processing in many fields is introduced, and then the separability of multi-component mixing signal is discussed.

从贝叶斯的迭代估计入手，介绍了线性高斯下的最优解：卡尔曼滤波，回顾了现有的一些非线性滤波算法。

It put forwards an effective way to signal filter, signal-noise separating and character picking-up.

正是这种特性，使小波变换具有对信号的自适应性。

To obtain appropriate signal processing methods, the identification algorithm of leak signal based on Sequential Probability Ratio Test is put forward.

为了得到合适的信号处理方法，提出了基于SPRT的泄漏信号的识别，综合了假设检验、序贯分析来提高管道泄漏检测系统的灵敏度。

Researching the opposite side of the mobile phone signal repeater, we produce ATE cellular phone shielder which can jam the mobile phone signal. Technology has negative influence.

自然界里"矛和盾"总是相对立而存在的，"移动电话信号屏蔽器"就是运用逆向思维，研究"移动电话信号放大器"对立面产品的一个实例。

With the development of electrical design,higher signal frequency,smaller PCB board and bigger routing density,the signal integrity becomes more and more important.

摘 要：当今飞速发展的电子设计领域，信号频率的不断提高，印制电路板变小，布线密度加大都使得信号完整性问题越来越成为一个值得关注的问题。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。