CAJ | 학술논문

借助MATLAB软件详细阐述了有线信道、无线信道的类型及信道中的传输损耗;以曼彻斯特码作为数字基带传输的码型,建立传输线的等效电路模型,通过MATLAB软件仿真信号在有线信道中的传输过程,以及从四进制键控数字调制方式（QPSK）仿真入手,建立了多径信道、瑞利信道等无线信道模型,借助MATLAB软件仿真信号在无线信道中的传输过程。
차조MATLAB연건상세천술료유선신도、무선신도적류형급신도중적전수손모;이만철사특마작위수자기대전수적마형,건립전수선적등효전로모형,통과MATLAB연건방진신호재유선신도중적전수과정,이급종사진제건공수자조제방식（QPSK）방진입수,건립료다경신도、서리신도등무선신도모형,차조MATLAB연건방진신호재무선신도중적전수과정。
With the MATLAB software,this paper expounds type,radio channel type and channel transmission loss.Through using the MATLAB software to simulate Abstract：With the MATLAB software,this paper expounds type,radio channel type and channel transmission loss.Through using the MATLAB software to simulate Abstract： With the MATLAB software,this paper expounds the channel type,radio channel type and channel transmission loss.Through using the MATLAB software,it simulates signal in cable channel,sets up an equivalent circuit model of transmission line by using Manchester code as a digital baseband transmission code.It also establishes the radio channel models of multipath channel and Rayleigh channel by the simulation of QPSK.