基于超声波的无线携能通信研究

Study of ultrasonic simultaneous wireless information and power transfer

无线携能通信是将无线能量传输与无线信息传输相结合的产物。近年来,以无线电波作为媒介的携能通信研究十分火热,而以超声波作为媒介的方式却没有得到足够关注。从超声波的传能机制出发,提出超声波换能器的设计要求;从超声波的通信机制出发,研究超声波通信的调制方式及信道特性;从功率分配角度出发,建立了速率-能量折衷模型,提出了适用于不同应用场景的动态功率分配算法,建立了基于超声波的无线携能通信系统模型。

Simultaneous wireless information and power transfer is the combination product of transfer. The RF-based SWIPT system has been extensively researched by the scholars botli home and abroad in receultrasonic SWIPT system does not get enough attention. In terms of the working mechanism of ultrasonic WPT,several hardware design require-ments are put forward ; according to the working mechanism of ult rasonic WIT,modulat ion modes and channel charfrom the aspect of power splitting, rate-energy t rade-of f is modeled and the Dynamic Power Spl i t t ing （ DPdiferent application scenarios.