1) ground wave
地波
1.
Design of transmitting waveforms and its demodulation in the coast-ship multi-static ground wave over-the-horizon radar;
岸-舰多基地地波超视距雷达的发射波形及其解调
2.
In this paper,calculation principle of field density and correspondence link of ground wave is introduced.
介绍了地波场强及通信链路的计算原理,着重分析了地波在不同地质条件下的传播特性,包括地波在均匀土壤、不均匀土壤上的传播特性,衰减因子的变化规律以及障碍物对电波传播的影响,并给出了测试结果曲线图和部分测算结果。
3.
In order to solve the contradiction between the detection range and range resolution and to avoid the effect of direct wave,the coast-ship bistatic ground wave over-the-horizon radar(OTHR) always utilizes the frequency modulated interruptive continuous wave(FMICW) signal.
为了解决探测距离与分辨率的矛盾,并在后续信号处理中避开直达波的影响,岸-舰双/多基地地波超视距雷达适合采用线性调频中断连续波(FMICW)信号。
2) surface wave
面波;地波
3) hummocky
[英]['hʌməki] [美]['hʌməkɪ]
波丘地<地>
4) seismic waveform
地震波波形
1.
According to the seismic waveform theories,the seismic facies have been identified and divided automatically and the plane distribution of the depositional systems have also been determined.
依据地震波波形理论,进行地震相自动识别、划分,可确定沉积体系平面分布特征。
2.
The frequency spectrum and seismic waveform are related by Fourier transform, so they are two different forms of the same physical phenomenon.
直接由地震波波形预测扇体砂岩厚度,不仅充分利用了地震波信息,而且极大地提高了预测模型的准确性。
5) seismic velocity
地震波波速
6) primary wave
P波;纵波;地震波
补充资料：地波
又称“地面波”。沿地球表面传播的无线电波。在传播过程中，受地面吸收和绕射的严重影响，传播距离不远；波长愈短，传播距离愈近。但地波传播不受气候影响，可实现可靠的长波及较长波段的中波通信和无线电广播。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条