基于AD7124的高精度MEMS加速度计信号处理系统.docxVIP

基于AD7124的高精度MEMS加速度计信号处理系统

目录

1.内容概要................................................3

1.1研究背景.............................................4

1.2研究意义.............................................5

1.3文献综述.............................................6

1.4研究内容与方法.......................................8

2.系统概述................................................9

2.1系统组成............................................10

2.2工作原理............................................11

2.3系统性能指标........................................12

3.AD7124加速度计介绍.....................................14

3.1产品概述............................................15

3.2功能特性............................................16

3.3应用场景............................................17

3.4优势与挑战..........................................18

4.高精度信号采集与处理...................................20

4.1AD7124数据采集......................................22

4.2信号处理算法........................................23

4.2.1低通滤波........................................25

4.2.2去噪处理........................................26

4.2.3同步信号处理....................................27

4.2.4加速度计校准....................................28

4.3数据同步与存储......................................30

4.4系统误差分析........................................31

5.系统实现...............................................33

5.1硬件设计............................................34

5.2软件实现............................................35

5.3性能测试............................................37

5.3.1测速与准确性测试................................38

5.3.2抗干扰性测试....................................39

5.3.3温度与湿度影响测试..............................41

6.实验结果...............................................42

6.1系统测试结果分析....................................43

6.2结果比较与讨论......................................44

6.2.1与其他系统的对比................................46

6.2.2不同测试条件下的表现............................47

7.结论与展望....................