标准上给出的归一化场地衰减（NSA）理论值的计算是基于发射和接收偶极子天线无限细这个假设得出的。
The theoretical NSA values given by the standards are grounded on the assumption that transmit and receive antennas are infinitesimal dipole antennas which is inappropriate to measurements.
FTF算法可以自适应地跟踪接收机输入信号的幅度衰减，做出实时地估计。
The receiver with FTF adaptive filters can track the amplitude of received signal to form a real-time amplitude estimation.
根据产生接收信号振幅变化的不同物理机制，提出产生信号振幅变化的几何衰减和物理衰减两个不同的概念。
Two new concepts, geometry attenuation and physics attenuation, are presented according to different physics mechanisms of the amplitude variations in received signals.
接收概率衰减速度的调节可以控制混沌退火的速度，从而影响网络的收敛速度。
Adjusting the probability of acceptance could control the speed of chaos simulated annealing, and influence the rate of convergence.
采样电路在衰减电路接收到用于最高有效数字的脉冲之后的采样时间对衰减电路的输出进行采样。
The sample circuit samples an output of the decay circuit at a sample time after the decay circuit receives the pulse for the most significant digit.
通过对大气衰减系数、放大器放大能力、光电二极管接收灵敏度等一些主要参数进行分析，建立了激光模拟系统的数学模型。
Secondly, the mathematical model of the laser simulation system is built upon the atmosphere attenuation, the amplifier extent, receiving-sensibility of photoelectric diode and other preferences.
为了满足大衰减量值的溯源，研制成功了新的PAS 1型衰减测量接收机和新的国家标准装置。
In order to meet the traceability of large attenuation, a new model PAS-1 attenuation measuring receiver and then a new national attenuation standard system are developed.
激光雷达系统的作用距离由下列因素决定：脉冲能量、脉冲宽度、光束发散角、大气衰减、目标反射率和接收机灵敏度等。
The operating distance of a laser radar system is determined on pulse energy, pulse width, beam divergence angular, atmosphere attenuation, target reflection, receiver sensitivity and so on.
为避免产生光子并合现象的产生，可以利用在接收光路上加装中性衰减片、提高光电倍增管开始工作的高度和降低光电倍增管增益等措施来分段测量，提高臭氧测量的精度。
To avoid the phenomena of photon overlap, many measures such as neutral optical attenuator, gate witch and reducing the gain of PMT, are taken to enhance accuracy of ozone measurements.
使声波信号沿着发射器和接收器之间的套管井壁传播时的幅度衰减确定套管外水泥胶结质量的声波测井方法。
A log that USES the variations in amplitude of an acoustic signal traveling down the casing wall between a transmitter and receiver to determine the quality of cement bond on the exterior casing wall.
利用天线分集方案以便在系统中消除接收机接收到的信号的衰减现象的无线数字通信系统(1)是已知的。
Known are wireless digital communication systems (1) applying an antenna diversity scheme to combat fading in a received signal as received by a receiver in the system.
本文设计的陷波器用于衰减罗兰C接收机的邻道干扰，而且其调谐是在微机管理下处自动进行的。
The notch filter proposed is used to attenuate the adjacent channel interference in the Loran-C receiver.
同时，在硬件电路上采用多次滤波滤除噪声，采用高增益接收解调芯片MC13135对接收信号进行两次混频滤波，提取出微弱有用信号，进一步提高通信模块抗衰减能力。
At the same time , several filters are adopted in hardware circuits. The reception chip MC13135 with high gain is used to promote the capability of anti-attenuation of the interface .
烟幕对红外和近红外等波段的电磁波有吸收、反射和散射等特性，可以导致红外成像制导导弹导引头接收到的能量大大衰减，从而降低导弹命中率。
The smoke screen that may absorb and scatter infrared, heavily attenuates energy of guidance head, and then will reduce the probability of missile shooting.
烟幕对红外和近红外等波段的电磁波有吸收、反射和散射等特性，可以导致红外成像制导导弹导引头接收到的能量大大衰减，从而降低导弹命中率。
The smoke screen that may absorb and scatter infrared, heavily attenuates energy of guidance head, and then will reduce the probability of missile shooting.
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