| 1. | Abbreviated dial system 缩位拨号系统 |
| 2. | Although the family ' s remaining valuables are now lodged with the bank , he has installed an electronic999 dialling system 虽然家中剩下的贵重物品现都存放在银行里了,他还是安装了999电子报警器。 |
| 3. | Although the family ' s remaining valuables are now lodged with the bank , he has installed an electronic 999 dialling system 虽然家中剩下的贵重物品现都存放在银行里了,他还是安装了999电子报警器。 |
| 4. | Moreover , this thesis simulate the part of signal processing in dial system and validate the feasibility of our signal processing methods 此外,本文还专门进行了dial系统中信号处理部分的仿真研究,证实了系统数据处理的可行性。 |
| 5. | If signal averaging technology was used in our co2 dial system , then would improved the sensitivity of measurement clearly and could meet the demand of development 运用信号平均技术之后,本课题研制的系统其测量灵敏度完全可以满足设计要求。 |
| 6. | It is useful for selecting reasonable system parameters through it . for the data process in dial system , we discussed the combined effects of temporal autocorrelation and lasers cross correlation and signal averaging 对于dial系统中的数据处理,本文着重讨论了信号平均技术和激光器回波信号时域自相关以及激光器互相关对co2dial系统测量灵敏度的影响。 |
| 7. | Under our task experimental condition , we calculated the sensitivity of our planning to develop dial system with direct detection , besides , we studied the relationship between the sensitivity of measurement and atmospheric refractive - index structure constant and applied matlab program simulated the system parameters such as beam diameter , laser divergence angle , detection distance and gained relevant relationship curves 在课题实验条件下,模拟计算了直接检测dial系统的测量灵敏度。在考虑大气折射率结构常数对系统测量灵敏度影响的基础上,并对各种系统参数如光束半径、束散角和探测距离对测量灵敏度的影响运用matlab程序做了仿真计算,为合理选择系统设计参数提供了依据。 |
| 8. | For the needs of researching a useful dial system , in this thesis , we studied a vast chinese and english literature and discussed the principle of dial system in detail . we analyzed the factor of influencing the accuracy and sensitivity of measurements , in special , discussed the influence of atmospheric turbulence and laser speckle 为研制出有实用价值的dial系统,本文在参考大量国内外文献的基础上,对系统原理以及影响系统测量精度和灵敏度的各种因素进行了详细讨论,并且着重分析了大气湍流和目标斑纹这两个最重要因素对高脉冲能量的co2dial系统测量灵敏度的影响。 |