The basic theory of tag's load modulation and the key features of backscatter signal are analyzed. The design of key nodes of the whole detecting channel is demonstrated in detail.
先分析标签负载调制的基本原理和反射信号的调制特点，再详细阐述检测通道关键环节设计与实现。
Finally, the antenna, ASK modulation, power supply of the tag, load impedance modulation, demodulation, power supply sensor and HF power amplifier were realized.
本文实现了天线、ASK调制、应答器的电源、负载调制、解调、电源传感器和高频功放模块。
Total coefficient of modulation of moment for the frame applied horizontal load and vertical load is bigger than that of the same frame applied vertical load.
框架既承受水平荷载又承受竖向荷载时的总弯矩调幅系数比相同结构只承受竖向荷载的总弯矩调幅系数大。
Pulse width modulation is used to reduce the total power delivered to a load without resulting in loss which normally occurs when a power source is limited by a resistive element.
脉宽调制技术是用来降低总功率交付给了负荷，没有造成损失，这是通常发生时，电源是有限的，由电阻芫件。
Here the discrete on or OFF state of the modulation itself can be used to control the switches thereby controlling the voltage or current across the load.
在这里，离散的开或关的状态调制本身可以被用来控制开关，从而控制得或电流负载。
The forecasting of city network hourly gas load plays an important role in ensuring the consumption of the gas network, in optimizing the modulation of network, and in the equipments maintenance.
城市燃气小时负荷的预测对于保证管网用气量，进行管网的优化调度，设备维修具有极其重要的意义。
The setting is introduced on the relationship between primary frequency modulation speed difference and primary frequency modulation load for current modulated type steam turbines with base-load.
介绍了目前电调型带基本负荷汽轮机的一次调频转差与调频负荷关系曲线的设置情况。
The results clearly show conduction losses are the function of semiconductor static characteristic, power factor, modulation depth and load current.
该表达式与器件静特性、功率因数、调制度及负载电流有关，利用其计算不同载波调制下通态损耗时只需改动导通占空比。
It operates both in current mode at high output load and in pulse frequency modulation (PFM) at light load to reduce the power dissipation.
它在重载下工作于电流控制模式，轻载下工作于脉冲频率调制(PF M)模式来降低功耗。
This modulation method effectively solves the problem of output voltage is not controllable with light load and no-load by the introduction of feedback mechanism to it.
该调制方法引入了负载反馈机制，有效解决了轻载和空载输出电压不可控的问题。
This modulation method effectively solves the problem of output voltage is not controllable with light load and no-load by the introduction of feedback mechanism to it.
该调制方法引入了负载反馈机制，有效解决了轻载和空载输出电压不可控的问题。
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