查询词典 signals

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。

In particular, the method includes the luminance signal and the color difference signals being converted into color signals.

特别是，该方法包括将亮度信号和色差信号转换成彩色信号。

Hence the propagation delay time of master's control signals don't need to be pre-known in the control process of synchronization, and also these criteria are applicable to chaotic complete synchronization of the master-slave Lur'e systems concerning master's control signals without propagation delay.

我们证明了关于该混沌同步问题达到滞后同步或不能达到滞后同步的四个Lur'e型判据和七个频率域判据，给出了优化选择主系统驱动变量的模型。

MRI examination found that the partial disappearance of cortical signals and the extensive abnormal signals from the marrow cavity.

MRI检查除骨膜改变外病变尚累及骨皮质和骨髓腔，骨干皮质信号部分消失，髓腔内显示广泛的异常信号。

Reactive compensation device, a new kind of dynamic device which can separately measure the voltage and current signals using PCC as master controller and can sample the signals using programmable amplifier, may pretreat the reference voltage in order to adjust expediently.

0引言在电网中安装并联电容器等无功补偿装置，可就地补偿感性负载所消耗的无功功率，从而减少电网电源向感性负荷所输送的无功功率，降低线路和变压器因输送无功功率造成的电能损耗。

The vibration signals were detected by a high accuracy laser displacement sensor, and the root mean square value of the signals were processed by means of zero equalization, picking out of bad points and elimination of linear trend.

通过高精度位移传感器采集串珠绳振动信号，并通过零均值化、坏点剔除及消除线性趋势项等一系列方法对检测信号进行了分析处理，利用相同加工条件下均方根值的稳定性对信号的数据处理方法进行了验证。

Researches reveal that students who suffer from corporal punishment tend to resort to violence in their future life.

研究表明遭受过肉体惩罚的孩子倾向于在他们今后的人生中使用暴力。

Total sugar of sarcocarp and chlorophyll of pericarp increased firstly, and then decreased afterward along with altitude; Titratable acidity, ascorbicacid and anthocyanin of pericarp were increased along with altitude; The content of protein increased firstly and decreased afterward along with altitude; Carotenoid of pericarp were decreased along with altitude.

果肉总糖和果皮叶绿素含量随海拔高度升高先升高后降低；可滴定酸、维生素C和果皮花青苷含量均随海拔升高而升高；蛋白质在1720m处最大，1420m处最小；果皮类胡萝卜素随海拔升高而降低。