摘要
轻便高频可控震源 (PHV)是一种用于工程探测和浅层地震勘探的非爆炸性震源 ,其工作原理来源于Chirp雷达技术 ,它的主要任务是向地下发射参数得到严格控制的Chirp信号。PHV由 3部分组成 :测控单元、振动单元、数据采集与处理单元。其中测控单元是PHV的核心。文中从系统设计出发 ,重点讨论了测控单元的软硬件设计与实现。PHV在唐山地区的实验结果证明它能够稳定、有效的工作 ,而且优于其它非爆炸性震源。
Portable High-frequency Vibrator (PHV),a kind of non-explosive seismic source for engineering and shallow seismic survey,originated from Chirp Radar, thus its main function is to transmit power amplified Chirp signal with strictly controlled parameters to the earth. PHV consists of three parts, namely, Measurement & Control Unit (MCU), Vibration Unit (VU) and Data Acquisition & Processing Unit (DAPU). Among them DAPU is the core. Focusing on the system design, hardware & software design of DAPU is mainly discussed in this paper. Experiments in Tangshan area demonstrated that PHV works efficiently and stable, and has advantages over other non-explosive seismic source.
出处
《仪表技术与传感器》
CSCD
北大核心
2000年第10期14-17,共4页
Instrument Technique and Sensor
基金
国土资源部重点科技项目轻便浅层地震可控震源系统资助!(No .950 51 1 6)
关键词
轻便高频可控震源
Chirp雷达
数字直接合成
Portable High-frequency Vibrator (PHV), Chirp Radar, Digital Direct Synthesizer (DDS), Real-time Control, Signal Generation
