发射部分 meaning in English
radiating portion
Examples
- To combine theoretical and simulating productions with the practical application , we use cpld chip to realize the hardware flat of hybrid ds - fh spread spectrum communication system , which provides the basic of the further practicability
为将理论及仿真成果与实际应用相结合，本文应用cpld器件芯片实现了ds - fh混合扩频系统发射部分的硬件平台，为它的进一步实用化奠定了基础。 - Transient electromagnetic methods ( tem ) can be called as time domain electromagnetic methods . the exploration equipments of tem include two units : transmitter and receiver . emission current falls down from i to 0 suddenly when step current passes through the transmitter loop
瞬变电磁探测需要发射的电流激励信号要足够强、功率足够大,发射电流波形的关断时间要求比较苛刻,而且发射部分还需提供实时监测发射电流、关断时间,记录电流下降沿等功能。 - According to the test conditions , the double polarity inputting mode is adopted in the circuit of voltage - frequency converting part ; storage batteries are used in the optical emission part of optical fibre isolating and transmitting device , that can guarantee isolation between the main circuit and the testing system ; the 89c51 singlechip is used in the singlechip testing - controlling unit , the peripheral circuits are extended , data are transmitted through the serial port in this part ; the p opular software delphi5 . 0 is used in the pc part , the communication between singlechip and pc by serial port , plotting of current wave , regulation of data ; the optical - electrical isolating and triggering are used in the controlling part , this can guarantee the veracity and reliability of breakers triggered , this triggering mode is also used in the triggering of the main closing breaker , the tested breaker and the assistant breaker , the triggering signals are sent out by a singlechip
压频转换部分电路中根据实际情况采用了双极性输入方式；光纤隔离传输装置的光发射部分电源采用了蓄电池供电，确保了主回路与测试回路的完全隔离；单片机测控部分采用了89c51单片机，扩充了外围电路，通过串口向pc机传送数据； pc机与单片机之间的串口通讯、波形绘制、数据管理等都采用了软件delphi5 . 0编写。该测试系统中预留了输出口，可以对合成回路中的主合闸开关、被试开关、辅助开关进行触发，信号由单片机发出，控制部分采用了光电耦合隔离触发的方法。软件设计主要集中在对电流信号的数据采集、数据处理、数据传送、人机界面、波形绘制和数据管理，软件部分又可分为单片机和pc机程序设计两大部分。 - 3 . with comprehensive improvement of transponder including structural adjustment to lna ; optimization of ( phase locked loop ) pll filter ; structural adjustment to the transmitter and phase error adjustment to the intermediate frequency demodulation circuit , we have successfully enhanced sensitivity , expanded dynamic range , increased transmitting power and improved the spectrum purity ; decreased capture time for pll ; improved the signal quality after demodulation ; reduced its volume and power consumption . 4
3 、对通信机的全面改进，包括lna结构的调整、锁相环环路滤波器的优化、发射部分结构的调整以及中频解调电路的相差调整，提高了系统的接收灵敏度、改善了本振的频谱纯度、减少了锁相环的锁定时间、使中频解调后的信号质量大为提高，同时还减少了体积、节约了系统的功耗。