微型机与应用2016，Vol.35Issue(21)：33-36,4.DOI:10.19358/j.issn.1674-7720.2016.21.010
高精度回声数据采集模块的设计
Design of high precision echo data acquisition module
吴松1
作者信息
- 1. 中船重工集团第七二六所,上海 201100
- 折叠
摘要
Abstract
This paper introduces a data acquisition system based on type 24 sigma delta analog-to-digital converter, the gain of the system can be adjusted from 0 to 60 dB,the input signal can be gathered from a few microvolts to tens of millivolt with high-precision,it can output a variety of frequency after the filter.Using FPGA to configure the analog to digital converter, control and read the data.A large amount of data collected is cached to an external Flash,DSP reads the data and goes on FIR filter processing,then sends to the host for echo identification through the RS422 interface.关键词
Σ-Δ型/高精度采集/FPGA/DSPKey words
sigma delta/high precision acquisition/FPGA/DSP分类
计算机与自动化引用本文复制引用
吴松..高精度回声数据采集模块的设计[J].微型机与应用,2016,35(21):33-36,4.
