新型无线感应技术在模拟载波通信中的应用

Application of New Radio Induction Technology to Ana log Carrier Communication

与传统的感应无线技术相比,新型无线感应技术具有更好的抗干扰能力且减少了一根传输线,应用于机车,特别是磁浮列车的自动驾驶中,可以满足列车自动化驾驶中通信定位测速的需求。为此对新型无线感应技术在模拟通信中的应用进行分析。以单频模拟信号为调制信号,对连续正(余)弦载波进行调幅、调相和调频等调制,得到AM,DSB,SSB,窄带调频,窄带调相等已调信号通过新型无线感应系统时的不同解调新方法,并对新型无线感应系统的AM,DSB,SSB,窄带调频,窄带调相等调制解调进行仿真。结果表明:新型无线感应技术可以应用于模拟载波通信中恢复原始信号。

The new radio induction technology has higher anti-interference performance and saves one transmission line. It is applicable to the locomotive and particularl y the MAGLEV train. It can satisfy the requirements of communications and the lo cation and speed measurement of automatic train operation system. The paper anal yses the new radio induction technology used in the analog communication. The co ntinuous sine (cosine) carrier is modulated in amplitude, phase and frequency wi th the modulation signal of a single frequency. When the modulated signals of AM , DSB, SSB, NBFM, NBPM are transformed through the new radio induction system, t he new methods for DEMOD are obtained. And the MOD-DEMOD of AM, SSB, DSB, NBFM and NBPM of the new radio induction system is simulated. The research results sh ow that the new radio induction technology can be used to restore the original s ignal in the analog carrier communication.