With the LFM pulse frame synchronization method, the performance of UWA communication system based on DPSK is apparently improved.
同时运用线性调频脉冲帧同步法，改善了基于差分相移键控的水声数字通信系统的性能。
An antenna was developed to radiate high power, sub nanosecond EM pulse, which consists of a high power wideband mode convertor, a wire frame TEM horn feedback set and a parabolic reflector.
研制了一种由高功率宽带模式转换结构、导电线框tem喇叭馈电结构及抛物反射面构成的天线，用其辐射高功率亚纳秒电磁脉冲。
Information is transported through a synchronized path, so the pulse justification and the frame justification are the mostly adopted methods.
信息传输需要在同步环境下进行，码速调整技术和帧调整技术是创造同步环境经常采用的两种技术。
The system includeS beam attenuator, single pulse selection and pulse synchronizing, beam matching, CCD Camera, frame grabber hard, monitor, computer and system software.
整个装置包括光束衰减器、单脉冲选取及脉冲同步、光束直径匹配、CCD摄像机、图像卡、计算机及监示器以及系统软件。
A basic frame of direct current pulse width mode of servo control system is presented. Algorithm is realized by embedded digital signal processor.
提出了一种直流脉宽调制伺服控制系统的基本框架，其算法通过嵌入式数字信号处理器(DSP)来实现。
The paper analyzes frame architecture of PPM code in detail, illustrates pulse-number method and implementation principle of the circuit, and supplies test result of the circuit.
详细分析了PPM编码的帧结构，说明了脉冲编号的解码方案以及电路的实现原理，最终给出电路的仿真测试结果。
In the initiation phase, a pilot symbol sequence designed is capitalized to assure frame-level acquisition and pulse-level tracking.
在初始阶段， 通过设计导频序列，以实现帧级的捕获和脉冲级跟踪；
After that last frame was radio-transmitted back to Earth, the probe mysteriously disappeared; according to the Russians it was destroyed - possibly knocked out with an energy pulse beam.
在此之后的最后一帧是无线电传回地球，探索神秘消失，据俄罗斯它被摧毁-可能撞脉冲光束的能量了。
Frame synchronization is a key part in Pulse Position Modulation. The performance of this part affects the whole performance of the PPM system.
帧同步是脉位调制中关键的一部分，其性能的好坏直接影响到整个系统的性能。
Frame synchronization is a key part in Pulse Position Modulation. The performance of this part affects the whole performance of the PPM system.
帧同步是脉位调制中关键的一部分，其性能的好坏直接影响到整个系统的性能。
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