The spectral variation mechanism of the transmitted pulse when surface wave meets a defect in steel tube concrete is explained by using the diffraction theory.
运用波的绕射理论阐明了表面波遇到缺陷时透射脉冲频谱发生变化的机理。
The paper researches the received waveform and the characteristic of BER in one refection and twice refection, studies the influence of multipath distortion on the transmitted pulse.
通过研究几种发射脉冲的一次反射和二次反射的接收波形以及它们的误码率特性，研究了信道多径失真对室内无线光通信的影响。
Telemetry signals, which are not only convention but also a special type-single wide-pulse ones, are transmitted by the pulse Phase Key (PPK) Reent rant Telemetry system.
在脉冲相位键控(PPK)再入遥测系统中，除了传输常规遥测信号外，还要传输特种遥测信号，即单次宽脉冲信号。
The transmitted information is coded into the amplitude of the pulses so that each predetermined value of pulse energy is associated with a message.
把传输的信息编码成脉冲的振幅，因而使每个预先规定的脉冲能量值对应于一个信息。
Thus pulse shaping technique can be used not only shape the spectrum of the transmitted signal to increase the bandwidth efficiency but also to reduce its PAPR.
因此脉冲成形技术不仅能对传输信号进行频谱成形来提高系统的频带利用率，而且还可以减小信号的PAPR值。
This technique uses different time delay values of the LFM pulse to code the transmitted information, and uses time delay estimation technique to perform decoding.
该技术利用线性调频信号（LFM）矩形脉冲的时延值进行时延编码，在接收端采用时延估计技术进行时延解码。
Detecting sonar pulse transmitted by an active sonar, it is called "sonar pulse detection".
声呐脉冲侦察是利用目标主动声呐发射的脉冲信号来探测目标的技术。
Nonlinear pulse evolution transmitted in fiber was stimulated through computer. We find that nonlinearity can compress pulse and reduce polarization mode dispersion (PMD).
数值模拟了非线性功率脉冲在光纤中的脉冲演化过程，发现利用非线性可以压缩每一脉冲的偏振分量和减小偏振模色散(PMD)。
Pulse interleaving also avoids the mutual interference between the transmitted and received impulse pulse signals.
脉冲交错也避免了收发冲激脉冲信号间的相互干扰。
The automatic testing method of cable fault is characterized by that the pulse signal transmitted and received by pulse reflection test circuit can be directly superposed on the output end of d.
电缆故障的自动测试方法，其特征在于是将脉冲反射测试电路发射与接收的脉冲信号直接叠加到直流高压测量电路的输出端，直流高压测量电路的输出端与被测电缆端口连接。
The maximal detection range can be estimated on the transmitted signal parameters in pulse laser detection.
根据发射信号波形参数估算出脉冲激光探测的最大探测距离。
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。
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。
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