查询词典 input signal

Results The sensitivity and specificity of "three antibodies method" for detection of Y chromosome signal in brain tissue is 85.67% and 100%, respectively; the sensitivity and specificity of direct tyramine signal amplification method for detection of Y chromosome signal in brain tissue is 92.82% and 100%, respectively.

赵春礼1；邹西峰1，2；蔡青3；高尔静3；刘玉军1；赵焕英3；张进禄3；徐群渊11。首都医科大学北京神经科学研究所，北京市神经再生修复研究重点实验室，教育部神经变性疾病重点实验室 2。华北煤炭医学院附属医院神经外科 3。首都医科大学医学实验与测试中心

For FMCW radar ,the linearity of synthesizer is critical. A novel nonlinear PLL which can be used in VCO nonlinearity compensation is presented. By using the SAW delay line to delay the FMCW signal ,the IF signal can be locked on a reference frequency after mixing the delayed VCO signal frequency and the undelayed.

微波频率合成器是雷达系统很重要的一部分，对于FMCW雷达而言，VCO的频率线性度直接影响雷达测距测速的精度，本文应用微波频率合成器的原理构造了一个用于VCO线性化的非线性PLL，并首次研究了该PLL的环路相位模型，得出了用于线性校正计算的理论公式，最后应用ADS软件对该公式做了仿真验证，结果表明该理论的正确性，为VCO的线性化提供了理论指导。

Numerical calculation for sinusoidal signal, Gaussian periodic signal and square periodic signal is performed. The results show that zero-broadening slow and fast light is achieved using this optimized Brillouin comb gain for the three types of periodic signals, and the validity of the universal formula is proved.

通过对正弦信号、周期性高斯信号和周期性方波信号的数值计算，结果表明，利用该优化的梳状布里渊增益谱可实现这三种周期信号在零展宽下的快慢光，证实了所得普适公式的正确性。

That is to say, by using the special digital converter or running relevant arithmetic, it converts the radio signal to intermediate frequency signal and completes the base-band signal process that isn"t the veriest SR and is named "software defined radio. This paper introduces the rapid system prototype into the design of software radio system, which has great advantage because rapid system prototype technology can be used to describe the future application.

由于受到硬件性能如A／D、D／A及DSP芯片处理速度的限制，目前的软件无线电系统多采用折中的实现方案，增加专用的数字变频器或者运行数字变频算法，将射频信号变频到中频，然后再进行基带信号处理，这样的软件无线电系统又被称之为"软件定义无线电"，它并不是真正意义上的软件无线电。

This article referred to the use of digital devices MAX6675 as a K-type thermocouple cold junction temperature compensation circuit device, through the filter, signal amplification, voltage follow to deal with output signal of the thermocouple. At the same time, it uses SCM to process the digital signal, which has been converted by A/D convert device.

本文介绍一种利用数字器件MAX6675作为K型热电偶冷端温度自动补偿电路的器件，通过滤波，信号放大，电压跟随对热电偶的输出信号进行前置处理，利用单片机对补偿后进行了A/D转换的数字信号进行处理。

The feedback signal and a reference voltage are compared by the comparator, and when the value of the feedback signal is equal to that of the reference voltage, the comparator produces a switch control signal to regulate the duty ratio of the switch circuit so as to stabilize the output voltage.

通过一个比较器比较这个反馈信号和参考电压，当反馈信号与参考电压的值相等时，此比较器产生一个开关控制信号调节开关电路的占空比以稳定输出电压。

Because the traditional wireless microphone uses the frequency low silent chain, all is analyzes the radio-frequency signal the intensity, therefore they cannot and need the noise the signal differentiates; In the noisy radio frequency environment (for example digital equipment and so on CD/VCD/LD send out massive overtones) under use, when this launcher signal weak or closure, the silent chain possibly can open suddenly, the receiver can send out the intense demolition noise.

传统无线麦克风因采用频率低的静噪电路，都是分析射频信号的强度，所以它们不能把噪音和需要的信号区分开来；在嘈杂的射频环境(如CD/VCD/LD等数码设备散发出的大量谐波)下使用，在该发射器的信号微弱或关闭时，静噪电路可能会忽然打开，接收机就会发出强烈的爆破噪声。

The trail official is responsible for the centre line and therefore blows his whistle once,gives the stop clock signal followed by the ball returned to backcourt signal and the direction of play signal.

追踪裁判负责中线并因此鸣哨一次作出停表手势接着作出球回后场手势及指出比赛方向。

Because of the features of current of breaker: the range is wide , the signal of short circuit containing the direct circuit that is attenuation signal, when CT is saturation, the signal of current is aberrational, improved Fourier algorithm and maximum slope algorithm are chosen to calculate the current on the base of theoretic analysis.

根据断路器开断电流信号变化范围宽、短路电流信号含有直流衰减分量、当电流互感器深度饱和时，电流信号发生畸变的特点，在理论推导和分析的基础上，综合采用了并联补偿傅氏算法和最大斜率算法作为监测单元中不同范围内的电流信号的处理算法。

Said invented method for and device adopt MCU or logic or logic chip detecting said ringing current signal, backboard ringing current signal and mutual sent signal, and sequential control sequential control, avoiding switch device hard switching and arcking, raising switch device and backboard reliability.

本发明方法及装置通过采用MCU或逻辑芯片检测本板铃流信号，背板铃流信号和互送信号，并采用时序控制，避免了在铃流开机和切换时的开关器件硬切换，以及铃流的在开关电路切换时的拉弧，提高了开关器件的可靠性；而且把开关电路从通讯设备插框背板转移到单板上来，提高了背板的可靠性，降低了后续的维护和检修困难。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。