FPGA在惯导脉冲输出信号测量系统中的实现

针对惯导脉冲数据测量存在测试流程自动化程度低、脉冲计数准确性差等问题，文中基于FPGA平台，采用有限状态机技术实现了阈值滤波的功能，利用直接脉冲计数法和FIFO存储等技术，解决了脉冲计数以及测量系统内部数据传输速率不一致的问题。同时采用虚拟仪器技术，通过LabVIEW平台实现了数据自动处理的功能。经过实验验证，该测量系统能够实现准确脉冲计数，将相对脉冲计数误差控制在 以内，并且能够对数据自动采集处理，提高了测量系统的自动化程度。

The Realization and Research of Inertial Pulse Output Signal Measurement in the FPGA

Aiming at the problem of test procedures low degree of automation and pulse countings bad accuracy, this paper adopts the technology of finite state machine and realizes the function of threshold filter on FPGA platform, and uses direct pulse counting method and FIFO storage technology, solving the problem of pulse counting and inconformity of transmission rate inside measuring system. Adopting the technology of virtual instrument, the paper realizes the function of automatic data processing on the LabVIEW platform. Going through the experimental verification, the measuring system can make true that pulse counting, controlling the error of pulse counting within . And achieving automatic data processing, the design can improve the degree of automation of measuring system.