| 1. | We must shape to the signal pulse
这时必需将信号脉冲整形。 |
| 2. | A study of the shaping of signal pulse under the condition of a synchronous pulse pump
同步脉冲泵浦下信号脉冲整形的研究 |
| 3. | Based on the theory of pulse compression , the essentiality of lfm signal is discussed
首先介绍了线性调频信号脉冲压缩的实现方法。 |
| 4. | Analysis of compression characteristics of gaussian signal pulse in semiconductor optical amplifiers by utilizing rectangular control pulse
矩形控制脉冲在半导体光放大器中对高斯信号脉冲的压缩效应分析 |
| 5. | The key factors of the relayed frequency shift jamming to it ' s quality are it ' s frequency shift amount and the time delay between the jamming pulse and the jammed signal
决定转发移频脉冲干扰品质的是其移频量和与信号脉冲的相对延迟时间。 |
| 6. | Distortion of start - stop teletypewriter signals . the shifting of the end of all marking pulses from their proper positions in relation to the beginning of the start pulse
起-止式电传打字机信号的畸变,即所有信号脉冲的末端相对于起始脉冲的始端对其正确位置的偏移。 |
| 7. | The simulation software is designed based on modularization method . it can fulfill the function of scene setting , pdw production , pulse sort and overlapping disposal
论文采用模块化的设计思路对模拟器软件进行了开发,仿真软件能完成场景设置、脉冲描述字生成、多信号脉冲排序、脉冲重叠处理等功能。 |
| 8. | The main content and work of the thesis includes : 1 . study the pulse compression performance in range imaging ， simulate the pulse compression processing of lfm signals and realize it on hhpc
本文完成的主要工作有如下几个方面： 1 .在距离向的脉冲压缩处理性能研究过程中，对lfm信号脉冲压缩过程进行了仿真，并在hhpc上实现。 |
| 9. | ( 2 ) dynamic range is increased through an amplifier with agc ( automatic gain control ) circuit . the output voltage of the detector is proportional to the received optical power . when the camera runs functionally , the optical power coupled into the detector may vary constantly due to the the mechanical vibration
利用自动增益控制或限幅放大电路,可以满足这一要求:输入功率较大时,脉冲幅度得到有效抑制,而在输入功率较小时,信号脉冲可以得到较大的增益。 |
| 10. | At present , signal pulses produced by directly modulated laser diodes have been used in optical fiber communication systems . the experiment reveals that the optical pulses from directly modulated laser diodes are far from gaussian and have near - rectangular temporal profiles with much sharper leading and trailing edges , and then a super - gaussian model , which assumes that an incident optical pulse has a super - gaussian profile , may be more suitable
但在实际的光通信系统中，人们常采用由直接调制半导体激光器产生的光脉冲作为信号脉冲，而实验结果表明这种脉冲具有比高斯脉冲更为陡峭的前沿和后沿，其脉冲形状更接近于超高斯分布，并且通常还带有一定量的啁啾。 |
