【摘要】 光栅地震检波器是基于光栅检测技术设计的一种新型数字传感器。它将光栅地震检波技术应用于地震勘探领域,以满足地震勘探的数字化的要求。为了控制两个AD转换器对两路信号进行同步采集,本文根据硬件描述语言VHDL的并发执行特性,在FPGA中设计了双口RAM模块进程。为了完成震动信号高倍细分算法的设计,利用DSP C语言现有的库函数实现细分值的分象限计算。因此结合FPGA与DSP分别在数据采集和运算方面的优势,对震动信号进行实时、准确的处理。更多还原

【Abstract】 Grating geophone is a new type of digital sensor which is based on grating detecting technology.It applied the grating geophone technology in the field of seismic exploration in order to meet the digital requirements of the seismic exploration.According to the Concurrent Execution characteristic of hardware description language VHDL,designed dual-port RAM modules process in FPGA,synchronous data acquisition of two analog-to-digital converter is achieved.In order to complete the design of high power subdivision algorithm,using the existing DSP C language library functions to achieve the subdivision value calculation in separate quadrant.Therefore,combined with the special advantages of FPGA and DSP in control and calculate function respectively,vibration signals for real-time,accurate processing.更多还原