Application of LORA Spread Spectrum Technology On Intelligent Water Meter

Abstract

Abstract. Spread spectrum technology is a new technology to make full use of limited spectrum resources and improve the efficiency of wireless information transmission. This paper introduces the working principle and system model of spread spectrum communication, and elaborates two main technologies of spread spectrum communication: Direct Sequence Spread Spectrum And frequency hopping spread spectrum, explain its working principle, and compare the performance of the two. In addition, the combination of spread spectrum and digital watermarking technology is introduced, and digital watermarking technology with spread spectrum is very robust and safe.