receiving circuit

In the receiving part, select the APD as receiving media converter parts, completed the design of the bias voltage circuit, preamplifier circuit, main amplifier circuit and comparator circuit, then Analysis the methods of time identification.

在接收部分，选用雪崩光电二极管作为接收光电转换器件，实现了偏置电压电路、放大电路以及比较电路的设计并分析了时间鉴别方法。

Anaiysis on Release Circuit for Receiving Part in Section Without Point in Rear of Home Signal

对进站内方设有无岔区段接车局部解锁电路的分析

Arranged signal activating lock circuit and time-base control circuit in the sound wave receiving circuit to take the initial signal of back wave as the valid one in the cycle, thus to improve the ratio of signal vs. noise and detective precision.

在超声波接收电路中设有信号触发锁定电路和时基控制电路。实现以各探头中最早收到的回波信号为本检测单元的有效信号，有效提高信噪比和检测精度；

The system consists of CPU module, the infrared ray emitting and receiving module, keyboard circuit and warning module.

该系统主要由中央处理模块、红外收发模块、键盘电路和报警模块组成。

Infrared absorption methane concentration alarming device is comprised of microcontroller systems, light modulation module, signal conditioning module, digital display module, sound and light alarm module, remote control receiving module, standard output module interface circuit.

该红外吸收式的甲烷浓度报警器由单片机系统、光源调制模块、信号调理模块、数码显示模块、声光报警模块、遥控接收模块、标准频率输出模块等电路组成。

It includes the frequency modulation circuit for receiving signals, the demodulation circuit for detecting signals, and the FOTS ( fibre-optic transmission system) for transmiting date.

包括用于完成信号接收的选频接收电路、用于信号检测的检波电路和用于数据传输的光纤传输系统的硬件设计。

Study shows that the PST can greatly improve the power receiving capability of Shanghai Power Grid and the transmission capacity of the cross-river passage of Jiangsu Power Grid, and will play a positive role in reducing the short-circuit current of 500 kV buses of East China Power Grid.

研究表明，采用移相器技术能显著提高上海电网受电能力和江苏电网过江通道输送能力，同时对降低华东电网500kV母线短路电流也能起到一定的作用。

Edwin Armstrong develops a receiving circuit-the superheterodyne.

艾德温?阿姆斯特朗开发接收机电路 — 超外差式收音机.

The receiver includes the choice of photoelectric detector and receiving circuit.

接收部分针对光电探测器和接收电路的选择展开论述.

Especially, the technology of burst mode receiver with a self_adaptive threshold setting circuit which is very important for receiving burst mode signal, is described in detail.

采用自动门限控制技术实现突发式光信号的接收，并采用延迟锁相环实现“首比特”的相位同步完成数据和时钟的恢复。