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Traditional frequency multiplier chain could obtain high stable and low phase noise signals, but it has complex circuit structure and needs to solve these problems of interstage circuit matching and filtering, which become prominent as the increase of operation frequency. Avalanche device is the important solid power device to generate millimeter wave signals.

传统的倍频放大链路虽然能够获得高频率稳定度、低相噪的毫米波信号，但其电路结构复杂，降低了系统的稳定性；同时还需(来源：A9bBb532C论文网www.abclunwen.com)要解决级间匹配滤波的问题，这在毫米波频段高端变得更为突出。

With the difference of the analog signals, this article introductive mostly is that digital signals connect with power amplifier circuit drive speaker, and bring tone.

与传统的模拟信号不同，本设计主要介绍的是数字信号连接功率放大电路，驱动喇叭，产生乐音。

This paper introduces the application of modern signals processing technology in MFL signals processing based on the models of forward calculation and inverse calculation,and finally describes the direction of further research on MFL testing technology.

介绍了漏磁检测的正演计算模型及反演计算模型，阐述了现代信号处理技术及其在漏磁信号分析中的应用，指出了漏磁检测需要进一步研究的内容。

The linear video signals applied in AC PDP are obtained from the conventional video signals after inverse gamma correction, which bring the loss of low gray images.

为了在彩色AC PDP中应用常规的视频信号，必须将常规的彩色视频信号进行反伽马校正使其转换成线性视频信号。

At the same time, considering the jumpiness or incline caused inaccuracy and pretermission when the capsule moving ahead, two couples of infrared ray and electron transducer were designed to detect the light signal of the corresponding parts of the capsule. After the addition operation compensation and differential coefficient, turning the little different simulation signals of the body and cap of the capsule into digital signals for detection. It is more accurate for detection and stable to the disturbance. Step electromotor was used for the capsules direction turning which solved this problem efficiently. The capsules were ranged in order according to their colors with the cap at the same direction.

同时考虑到胶囊行进过程中跳动、倾斜及随机干扰造成的误判、漏判，设计了两对红外光电传感器用以同时检测胶囊上下两个边缘部位的光信号，两个检测信号经加法运算补偿、微分运算处理，将体现胶囊的帽、体微小几何尺寸差别特征的弱模拟信号直接转变成数字量检测，提高了检测的准确率及抗干扰能力，并由步进电机控制胶囊掉头，有效地解决了胶囊体、帽的位置调整，分色调头排列，达到帽、体一致。

In order to decrease the measuring error of signal processing in laser Doppler velocimeter, frequency spectrum correction methods for lacer Doppler signal were proposed. Basic principles of energy centrobaric correction, ratio correction and phase difference correction were expounded. The three methods processing ideal sinusoidal signals was simulated with different signal frequencies, and so was the ratio method processing sinusoidal signals with different noises and signal to noise ratios.

在激光多普勒测速仪中，为了减小由信号处理算法带来的测量误差，提出运用频谱校正算法对多普勒信号的频谱进行校正，详细阐述了能量重心法、比值法和相位差法3种离散频谱校正算法的基本原理，运用这3种算法对理想正弦信号进行仿真，并运用比值法对信号施加不同频率和信噪比的噪音下的正弦信号和实测的多普勒信号进行仿真及实验研究。

Work, the light pen on the display screen to accept the light , and turn it into electrical signals by amplification, shaping, producing pulse signals,...

工作时，光笔接受显示屏幕上的光，并将其变成电信号经放大、整形，产生脉冲信号，。。。

On the basis of the analysis of the DBS signals and the principle of the optical receiver and in light of the application features of fiber-optic broadband access networks, a 3 GHz analog optical receiver with fairly high sensibility and large dynamic range has been designed and developed for the optical broadband satellite TV signals.

通过对直播卫星下行信号和光接收机原理的分析，针对光纤宽带接入网的应用特点，设计并研制开发出了一款达到3GHz带宽，用于接收宽带卫星电视光传输信号，具有较高灵敏度和较大动态范围的模拟光接收机。

In this paper,a new identification technique which uses cyclic pulse signals with different amplitudes as input signals to identify the unknown parameters of nonlinear gain and pulse responses of linear subsystem of wiener system with known structure,is presented,and estimates obtained are strong consistency.

本文针对带有已知结构的非线性Wiener系统，提出了利用不同幅值的周期脉冲信号辨识非线性增益未知参数和脉冲响应序列的新方法，获得了强一致性估计，数字仿真研究说明了该方法的有效性和实用性。

After judging the two groups of signals which reached the logic product gate at the same time, the circuit launched alarm signal through the antenna. The alarm signals can be received by the accepting circuit or the radio.

两组信号同时到达与门，经判断，电路再将报警信号通过天线发射出，可以用接收电路或收音机接收报警信号。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了