查询词典 Signal-to-Noise

As a result, the input symbols are no longer identically and independently distributed by definition and the distribution of PAPR derived for contiguous OFDM signal under these assumptions is not valid for the PAPR of NC-OFDM signal under these assumptions is not valid for the PAPR of NC-OFDM signals.

结果，输入符号不再是相同的，独立分布的定义和分配PAPR的推导毗连OFDM信号根据这些假设是无效的PAPR的数控OFDM信号根据这些假设是无效的PAPR的数控- OFDM信号。

In this paper, we study the implementation of the systemssoftware, include collecting signal by the computer, the pretreatment of the image,and recognizing the signal.

在对现阶段存在的问题进行分析和归纳之后，本文主要从下面四个方面展开讨论： 1。

It is more and more imminently pressive for the speed of data processing in underwater acoustic digital signal processing. Now Real-time digital signal processing has been an important part of sonar system.

在水声信号处理中，对数据处理速度的要求越来越迫切，实时数字信号处理已经成为声呐系统中的重要组成部分。

The results show that this method can detect impact signal and keep up signal wave form basically immovableness.

结果表明：利用小波非线性阈值滤波方法能较好地检测在随机噪声下的冲击信号，并能保持信号的波形基本不变。

The third audio signal is convolution of the first audio signal and the environment channel impulse response.

第三音频信号为第一音频信号与环境信道脉冲响应的回旋积分。

Results: Abnormal signal showed in 15 cases by routine plain scan (66%), while images of normal pituitary gland, infundibulum, and cavernous sinus showed obviously strengthened signals in 21 cases by non dynamic enhanced MRI (92%), with low signal area of microadenoma, forming evident image characters.

结果：常规平扫23例中，有15例可见异常信号改变，占66%；而动态增强扫描后有21例可见正常垂体腺、漏斗、海绵窦逐一明显强化，微腺瘤则尚未强化仍呈低信号区，形成鲜明对比的图像特征，占92%。

On the software we use the platform of Lab Windows/CVI, adopted the modulation design method, has realized the gathering signal real time and display, control accurate output of signal, correct processing of tentative data, draw and fit the performance curve of parameter through using data inosculation technology.

软件上在Lab Windows/CVI虚拟仪器开发平台上，采用模块化设计方法，实现了采集信号的实时显示，控制信号的准确输出，试验数据的正确处理及应用数据融合技术对性能参数进行拟合从而实现性能曲线的自动绘制。

The system is made up of PXI-6251 module collecting the dataduring the experiment, SCXI-1520 module adjusting the relaxing strain signal, FCS load inphase with multicenter system providing the pull during the demarcate experiment, sensorsmeasuring the strain and the pull, charge amplifier adjusting the relaxing pull signal, and soon.

组建了基于PXI总线的复合材料残余应力测试系统，此系统包括数据采集模块PXI-6251，应变信号调理模块SCXI-1520，FCS多通道协调加载控制系统、应变花和压电力传感器、电荷放大器等。

A device for removing an interference signal with a different characteristic included in input signals and an interference signal removing method are disclosed.

本发明公开了消除包括在输入信号中具有不同特性的干扰信号的设备和干扰信号消除方法。

In this thesis, by means of the principle of energy conservation, the small-signal transfer functions of interleave boost power factor correctors are derived. The transfer functions include the open-loop transfer function of interleave PFC and the transfer function of small-signal circuit with parasitic elements.

中文摘要本论文利用能量守恒定理推导交错式功率因数修正器(interleave power factor correctors)之等效电路模型，所推导的模型包括开路交错式功率因数修正器的小讯号等效电路以及含寄生元件效应之小讯号转移函数。

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％。