地震动阵列定向技术研究是用地震动传感器组成一个阵列，利用该阵列可对运动车辆、坦克等运动目标进行定向，也可对弹丸落地引起的振动进行定向，从而可对弹丸落点进行定向。地震动阵列其实是运动声阵列的一种。地震动阵列所涉及的基本问题，包括信号预处理、阵形研究、影响定位精度的因素等。主要包括振源模型、声速简化计算模型、非直线传播修正模型、跟踪滞后修正模型、土壤对不同频率声信号的吸收等问题；针对多传声器性能不一致问题进行研究，给出自适应识别性能较高的传声器的方法；对声阵列信号处理等问题也进行了研究，给出了一些有效的信号预处理方法及后处理方法，增强了声阵列定向稳定性，这是其它研究内容的基础和前提。
本毕业论文文对冲击力撞击地面产生的振动定位实验初步探讨根据扰动在土中的传播规律，布置传感器，获得信号进行分析，从而实现对信号源的定向。
关键词：单三角形阵列；压电式传感器；扰动传播9872
毕业设计说明书（论文）外文摘要
Title Directional seismic array technology research
Abstract
Seismic array orientation technology research is land of vibration sensor an array, the use of the array of moving vehicles, tanks directional movement target, also can be born on the bullet caused by vibrations of the directional, it can be on the bullet point for orientation. Seismic array is actually the movement of a sound array.
Sports sound array of basic problems involved, including signal pretreatment, system research, the factors which affect the precision, etc. The main sound source model including simplified calculation model, sound, the straight spread correction model, tracking lag correction model, air and soil of different frequency sound signal absorption; For many microphones with the problem for performance, to kind of adaptive identification of the method of high performance microphones; For acoustic array signal processing are given some effective signal pretreatment methods and post-processing method, strengthen the directional stability sound array, this is the other research contents of the foundation and prerequisite.
In this paper, the impact hitting the ground vibrations positioning experiments preliminary discussion according to the propagation rules in soil disturbance, decorate sensor, get signal analysis, so as to achieve the signal source orientation.
Keywords: single triangle array; the piezoelectric sensors; Disturbance spread
目录
摘要 I
ABSTRACT II
目录 III
1 引言 1
1.1 智能雷弹 1
1.2 坐标模型 1
1.3 本课题的主要工作 1
2 地震动信号的性质 2
3 固体中的应力波概述 3
3.1 应力波理论中术语及其基本概念: 3
3.2 扰动在土中的传播规律 4
4 压电式加速度传感器 7
4.1 压电式加速度计的结构和安装 7
4.2 压电式加速度计的灵敏度 9
4.3 压电加速度计的前置放大器 9
5 引起压电式传感器测量误差的因素 11
5.1 环境温度的影响 11
5.2 湿度的影响 11
5.3 横向灵敏度及其引起的误差 11
5.4 电缆噪声 12
5.5 接地回路噪声 12
6 单三角形阵列定向 12
6.1 单三角形阵列定向算法 12 地震动定向阵列技术研究+文献综述:http://www.youerw.com/zidonghua/lunwen_8749.html