生物电阻抗测量中的信号发生模块设计

摘要

Bioelectrical impedance widely concerns for its low cost and rich information.In the bioelectrical impedance measurement system,the signal generator plays a very important role.In this article,Xilinx FPGA and high-speed DAC are adopted to establish a high speed,universal signal generator platform for impedance measurement requirements.Meanwhile,the user interface is designed under LabView.%生物电阻抗测量因其低廉的成本,丰富的信息获得了诸多研究者的关注。在生物电阻抗测量中,信号激励模块有着非常重要的作用。文中采用Xilinx FPGA连同高速DAC搭建了高速通用型生物电阻抗信号发生模块,同时使用LabView系统进行了用户软件开发。