1) MEMS digital geophone
MEMS数字检波器
2) digital geophone
数字检波器
1.
Application and effect of digital geophone;
数字检波器的应用及效果
2.
Seismic data character of single-point digital geophone and processing strategy.;
单点数字检波器地震资料特点及处理对策
3.
However, based on full-digital seismic exploration technology, the digital geophone system is employed, as well as digital signals exported from digital geophones are digitally transmitted into key stations for arrangemen.
全数字地震勘探采用数字检波器系统,数字检波器输出的数字信号以数字方式传输到中心站进行编排、存储,在资料处理中心进行数字组合叠加处理和后加工处理。
3) digital detector
数字检波器
1.
The performance of the digital detector used in cable receive channel has been improved obviously.
用于地震勘探电缆接收道的数字检波器,其性能已有了很大提升。
4) MEMS acceleration geophone
MEMS加速度检波器
5) digital product detector
数字式检波器
1.
It was suggested that direct intermediate frequency sampling was approached by two branch sampling, otherwise digital product detector was adopted to digital interpolation.
提出用二分项采样法实现直接中频采样 ,而数字式检波器采用数字内插法。
6) grating digital geophone
光栅数字检波器
1.
Research on principle and signal processing approaches of grating digital geophone;
光栅数字检波器的原理及其信号处理方法的研究
补充资料:检波器
检波器 amplitude detector 从调幅波中恢复调制信号的电路。又称幅度解调器。与调制器一样,检波器必须使用非线性元件,因而通常含有二极管或非线性放大器。检波器分为包络检波器和同步检波器。前者的输出信号与输入信号包络成对应关系,主要用于标准调幅信号的解调。后者实际上是一个模拟相乘器,为了得到解调作用,需要另外加入一个与输入信号的载波完全一致的振荡信号(相干信号)。同步检波器主要用于单边带调幅信号的解调或残留边带调幅信号的解调。同步检波器的抗干扰性能比包络检波器优越,但是它的电路比较复杂。随着电子技术的进步,这种解调方法的应用日益广泛。 |
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