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The size of the diplexer was 18.3mm×15.6mm×0.5mm, at the frequency of 1.87GHz and 2.34GHz, the decay was higher than 55dB, so it suppressed the local oscillator signal and its mage reconstructor tube signal effectively, which met the design of filter with miniaturization. And then the three-dimensional laminated structures were used to realize the design of miniaturization, which was good for the later research.

该双工器尺寸为18.3mm×15.6mm×0.5mm，在频率1.87GHz和2.34GHz处衰减大于55dB，有效的抑制了阻带上的本振信号及其镜像信号，达到了设计指标，并利用三维叠层结构实现了小型化的目的，为以后的工程设计提供了有益的探索。

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。

It is difficult to distinguish the signal from the noise in the time domain and frequency domain by the regular digital signal processing algorithm.

近年来迅速发展起来的小波变换分析法，具有很强的时频局部化特性和信号特征提取能力，特别适用于局部放电这类脉冲信号的处理。

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 first IF signal exhibits a predetermined frequency relationship relative to the second IF signal.

第一IF信号与第二IF信号呈现出预定的频率关系。

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。

Complex data form, low signal -noise ratio, bad data repetitiveness, uncertain environment are the inherent characteristic of AE signal, so it is difficult to obtain numerous topic training data.

复杂的数据组成，低信噪比，数据重复性差，环境不确定是声发射信号的固有特征，因此难以获得大量的典型训练数据。

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。

Through the residual signal spectrum analysis and statistics analysis after de-noising, the characteristic frequency of the noise signal was obtained.

通过计算机仿真和实例分析对小波包降噪方法进行验证，表明小波包分析在汽车发动机降噪中有效性。

When applied to a certain type of turbo engine, the result showed that the proposed model has high resolution for locations of pressure signal singularities, which are caused by stall air mass in the compressor; this method can be used in the early detection of surge signal.

对某型涡喷发动机压力测量信号的分析结果表明，该方法对由失速气团造成的压力信号突变具有较强的分辨力，可以用于发动机喘振的早期检测。

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。