Simulation results show that the phase - shift between pumping and signal light in psa results in descending of soliton pulse amplitude 仿真结果表明：抽运光与信号光之间的相位漂移将导致孤子脉冲幅度下降。
Therefore , the crucial factor of technology of nucleus - detection is nuclear spectrum data collecting system whose core is the multi - channel analyzer ( mca ) 所以以多道脉冲幅度分析器为核心的核能谱数据采集系统，是核辐射探测技术的关键。
Moreover because the detector output pulse signal base is very broad , its scope has a long tail , it can not adapt to request of the multichannel pulse amplitude analyzer 另外由于探测器输出脉冲信号底部较宽,脱尾严重,不能满足多道脉冲幅度分析器的要求。
The specetrum data - collecting subsystem is controlled by a single - chip micro - controller at89c52 , including 1024 - channel pulse - height analyzer and rs232c serial communication interface 谱数据采集子系统由单片微控制器at89c52控制，包括1024道脉冲幅度分析器和rs232c串行通讯接口。
The thesis introduces the hardware and software design skills of a new type multi - channel pulse amplitude analyzer ( mca ) based on fpga chip and enhanced parallel port ( epp ) interface 本文从硬件和软件两方面详细地介绍了以fpga芯片为控制核心的基于epp接口的新型多道脉冲幅度分析仪的研制过程。
With a view to convenience to measurement in field , the mca should ( be characteristic of . ) little volume , low power consumption , powerful function , little weight , simple electrocircuit - design 为了便于野外原位测量，多道脉冲幅度分析器要求体积小、功耗低、功能较为完善、电路设计简单、重量轻。
Uast is equipped with the complex radar system of both continuous wave pseudorandom code phase modulation and mono - pulse amplitude comparison ( crs ) , and crs measures and gets target ' s position information 在坦克超近反导系统中，装备伪码调相连续波与单脉冲幅度比较复合体制雷达，用于测量目标的位置信息。
Utilizing the pulse neutron generator working with controlled circuit and time amplitude converter , the ash content in coal is measured , and we provides a safe and on line methods 通过该思路，利用脉冲中子发生器，控制电路，多道脉冲幅度分析器对煤中灰份的含量进行了测量，提出了一种实时、安全的快速检测方法。
The pulse neutron generator " s delaying time are measured by the time - amplitude converter and multichannel pulse amplitude analyzer . according to these times , the linear gate circuit " s opening time can be adjusted 用它和多道脉冲幅度分析器配合测量脉冲中子发生器发射中子的滞后时间，据此调整线性门电路的开门时间。
All the sequential and combinational logics , tested though the simulation under the specific software , are proved to meet the requirements of the design . it is a good reference for accomplishing the mca in practice 这些时序逻辑和组合逻辑功能均通过专用开发软件的仿真验证，达到设计要求，对实际上完成脉冲幅度多道分析器具有重要的参考价值。
