| 1. | The most difficult and important part of pcma is the suppression of local downlink disturbing signal
干扰信号的对消技术是pcma的难点和关键所在。 |
| 2. | The simulation results is perfect by recognizing two standard fire of china and disturbing signals
通过仿真利用两种中国标准火和干扰信号进行识别得到理想结果。 |
| 3. | Other factors that would influence the high frequency disturbing signal , the influential depth and defect piles were also discussed in the paper
本文还对影响高频干扰的其它因素，影响深度，缺陷桩情况等问题做了一定的研究。 |
| 4. | Channel dropping filters , which allow a signal from one channel to access another channel of wdm , and do not disturb signals in that channel , are useful elements for wdm
它要求某一频率的光通过某一耦合基元从一个通道耦合进入另一通道，而其他频率的光不受影响。 |
| 5. | While minor control signals are needed to realize the control object , relatively large disturbing signals are needed to detect the system status . dual adaptive control , however , can eliminate the conflict between control and learning satisfactorily
控制目标的实现要求控制信号平缓变化，同时对系统参数不确定性的学习又要求维持一定幅值和频谱的输入信号以起到充分激励的作用。 |
| 6. | In the processing of measurement , the measurement data always consists of measurement error by the influence of random disturbed signal and measurement error . it is necessary to process and revise the measurement data , and get it " s estimate value
在电网监测过程中，由于有测量噪声和随机干扰信号的影响，实际的量测数据往往存在误差，这就需要对监测数据进行处理和校正，从中得到所需要的各种参量的估计值。 |
| 7. | The whole control system is introduced and the parameters and working principle of the build - in - vehicles sensor developed independently are discussed with emphasis . some filter and amplifier circuits used to dispose the disturb signals were designed in experiments
本文介绍了整套系统的构成，重点讨论了自行研制的车载传感器的具体参数以及工作原理；为配合试验中采集到的数据的去除干扰处理，制作了滤波放大电路。 |
| 8. | Assigning serial different address code to different subscribers , useful signal is taken out of the same time slot and frequence , and is transmitted with one share channel . at received end , system makes use of completed address code from sending end to do correlative check and take out useful subscriber signal . the other address code signals are treated as broadband disturbing signal which is removed . in radio environment of existing variable disturbtion and muti - way declining , expand frequence signal ’ s broadband characteristics can improve system performance obviously . cdma mobile telecommunication system has some better characteristics , such as anti - disturbing 、 anti - way declining 、 secrecy 、 capacity 、 utilizing rate of frequence resource and so on , than other mobile telecommunication system
Cdma ( codedivisionmultipleaccess )移动通信系统的技术基础是基于扩频技术的码分多址,通过给不同的用户分配各自特定的地址码序列,将处于相同时隙和频率的用户信号分离开来,采用共享信道方式传输信息。在接收端,系统利用与发送端完全一致的本地地址码对接收信号进行相关检测,提取需要的用户信号,而将其他使用不同码型的信号视为宽带干扰而从中剔除掉。 |
| 9. | Specially we discuss and analyze the theory of linear quadratic gaussian control and the theory of implementing the stability of a uncertain time - delay system which include in the theory of robust control , and deduces some theories in detail , and gets the using method of the two theories in the actual systems . in this paper we first discuss and analyze the uncertainty of the macroeconomic system by the theory of linear quadratic gaussian control , and try to avoid the effect of the modeling error in system and the disturbed signal from the system and outside
本文主要研究了处于控制理论中的鲁棒控制理论，其中重点研究与分析了线性二次型高斯控制理论和时滞不确定系统的鲁棒稳定理论，对其进行了一定的理论推导，并得出了这两种控制理论在实际系统中的运用方法。本文首先运用线性二次型高斯控制理论对宏观经济系统进行了分析和控制，力求消除或减少系统中的模型化误差及其本身和外部的扰动信号等不确定性的影响，并借助matlab设计软件进行仿真，以得出最佳控制策略。 |
| 10. | This paper aims at the uncertainty of the macroeconomic systems and atmospheric pollution system which is analyzed and controlled by the theory of linear quadratic gaussian control and the theory of h control , and avoids the effect of the modeling error in systems and the disturbed signal from the system and outside
本文针对宏观经济系统和大气污染控制系统模型的不确定性，分别运用线性二次型高斯控制理论和h _ 。控制理论进行宏观经济系统和大气污染系统的的分析与控制，消除系统中的模型化误差及其本身和外部的扰动信号等不确定性的影响，借助matlab设计软件进行仿真，得出最佳控制策略。 |
