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- ranged gated pulsed Doppler echocardiogram 脉冲选通型多普勒心脏回声图
- range gate pulse 距离选通脉冲
- Pulse Doppler radar measurements consist of range, azimuth, elevation and radial veloc-ity, while most of the radar measurements only consist of the fomer three. 摘要多普勒雷达对目标的观测数据是由距离、方位角、俯仰角和径向速度组成，而大多数雷达的观测数据仅由前三者组成。
- The simulation proved that the algorithm can accomplish the pulse Doppler identification under great acceleration. 最后仿真表明，该算法可以完成高加速度下的脉冲多普勒测速。
- Active homing guidance system mostly adopts the pulse Doppler system. Therefore, research has important significance for radar seeker simulation. 主动寻的制导系统大多采用脉冲多普勒体制,因此研究该类型雷达导引头仿真具有重要意义。
- In the paper,digital radio frequency memory(DRFM) is applied to airborne radio fuze jammer to jam pulse distance-detecting fuze and pulse Doppler fuze. 将数字射频存储器(DRFM)应用到机载无线电引信干扰机中用来对脉冲测距引信和脉冲多普勒引信进行干扰。
- Based on analyzing two types of unsymmetrical TTL AND NOT gate pulse OSC,two methods of indirectly determining main parameter of TTL AND NOT gate is presented and then confirmed by experiments. 通过对两种非对称式TTL与非门多谐振荡器的分析，提出了两种间接测量TTL与非门主要参数的方法，并对它们的可行性进行了实验验证。
- Observed the effecting on parameters of left ventricular systolic function after myocardial infarction during infusion dobutamine(Dob) by pulse Doppler echocardiography. 应用脉冲多普勒超声心动图观察静注多巴酚丁胺（Dob）对心肌梗塞（MI）后左室收缩功能各项参数的影响。
- Active radar seeker mostly adopts pulse Doppler monopulse radar system.So it is significant to research on the modeling and simulation of this kind of radar seeker. 主动雷达导引头大多采用脉冲多普勒单脉冲体制，因此研究该类型雷达导引头的建模和仿真有重要意义。
- Analysis of tracking performance and resource management for pulse doppler phased array radar is done by simulation with incorporating radial velocity into the IMM filtering. 摘要针对脉冲多普勒体制的相控阵雷达，利用交互多模型方法，分析了径向速度对相控阵雷达跟踪性能及雷达资源管理的影响。
- Application of Range Vernier to Coherent Pulse Doppler Radar 游标测距在全相参脉冲多普勒雷达中的应用
- gate pulse monostable multivibrator 门脉冲单稳多谐振荡器
- In the modern electronic war, TRAD (Towed Radar Active Decoy) became an efficient way against PD (Pulse Doppler) radar seeker as a novelty jamming technique, and it has an important value in ECM field. 在现代电子战争中,拖曳式雷达有源诱饵干扰作为一种新型的干扰方式,是对抗脉冲多普勒雷达导引头的有效手段,其在电子对抗领域中具有重要的应用价值。
- Methods:Mitral annular early diastole(Ea)and late diastole(Aa)velocities of 30 diabetic patients were measured by DTI and mitral annular inflow velocities E,A were compared with pulse Doppler. 方法 :以 DTI技术检测 30例 DM患者二尖瓣环舒张早期运动速度 (Ea)和舒张晚期运动速度 (Aa) ,并用脉冲多普勒法检测二尖瓣舒张早期血流速度 (E)和舒张晚期血流速度 (A) ,比较两组参数的不同。
- This thesis discusses the signal processing methods of Pulse Doppler (PD) weather radar, mainly studying Spectral Moments (SM) estimators and Range-Velocity (RV) ambiguity resolution methods. 本文讨论的是脉冲多普勒气象雷达信号处理技术，重点研究了谱矩估计和解模糊算法。
- Range gating is a kind of effective method that can eliminate backscattered light and increase the SNR of the range gated laser imaging system. 距离选通技术是克服大气后向散射,提高主动成像系统信噪比的有效方法。
- How to choose the bias voltage, the width and the period of the gated pulse is very important. 偏置电压的大小、门脉冲宽度和周期的选择对后脉冲的消除起着关键的作用。
- Abstract: Range gating is a kind of effective method that can eliminate backscattered light and increase the SNR of the range gated laser imaging system. 摘要： 距离选通技术是克服大气后向散射，提高主动成像系统信噪比的有效方法。
- The detective ability of airborne pulsed Doppler radar is often greatly degraded in active jamming environment. 摘要在有源干扰下，机载脉冲多普勒雷达检测性能往往受到严重影响。
- I was reading a magazine when the phone rang. 电话铃响时我正在看一本杂志。
