摘要
在移动通信中，特别是高速移动数据传输情况下，由于高速移动而产生的衰落以及多径波的干扰，传输特性及差错率特性恶化。相移时频调制正是为了对抗衰落与多径延迟而产生的。本论文主要讨论时频调制信号及其相关函数，并建立了π－ＴＦＳＫ相移时频调制信号的数学模型。
In mobile communications, especially for fast moving data transmitting, the transmitting and symbol error rate characteristics will be badly destroyed owing to the fading created by fast moving and interferences caused by multi path propagation. To eliminate the fading and multi path delay, Time Frequency Phase Modulation(TFPM) has been proposed. This paper mainly discusses the Time Frequency Phase Modulation signal and its auto correlation function. The mathematical model of π TFSK is also established.
出处
《南昌航空工业学院学报》
CAS
1998年第3期1-7,共7页
Journal of Nanchang Institute of Aeronautical Technology（Natural Science Edition）
基金
航空科学基金
关键词
相移时频调制
自相关函数
数学模型
移动通信
Time frequency phase modulation
Auto correlation function
mathematical model
