摘要
自然风在森林环境中因受地形、地势和地表植物等因素的共同影响而变化丰富。本研究利用虚拟仪器,对近地表森林自然风信号进行采集、分析,并且利用处理后的自然风信号输出对外部的机械进行控制, 实现了近地表自然风的模拟回归。实验结果表明:虚拟仪器对近地表自然风信号的分析模拟较传统仪器更为简便,且能保证精度高,模拟还原信号与原始采集信号的拟合度符合预期的效果。在后继的研究中可结合温度、湿度等因素以进一步完善此系统。
The natural wind changes frequently in forest environment because of topography, terrain, ground surface vegetation and so on. The study utilizes the virtual instruments replacing the traditional test ones to gather and analyze the wind signals. Then it uses the simulation wind signal to control the external machine. It basically realizes the natural wind's simulation and regression. The experimental result shows that the virtual instruments not only can ensure the veracity but also are more simple and convenient than traditional ones. The fitting between simulated signals and original ones comes to the expectant effect. In upper study, the temperature and humidity can be considered to perfect the system.
出处
《森林工程》
2005年第1期7-8,14,共3页
Forest Engineering
基金
北京林业大学研究生培养基金资助项目
关键词
虚拟仪器
森林环境
近地表
自然风
模拟
virtual instrument
forest environment
near the erarth'surface, natural wind
simulation
