摘要
变换域通信系统(TDCS)是新近提出的一种无线通信方法。与传统的通信系统相比它有两点不同。首先它是根据信道的频谱特性在变换域(频域,或时间-尺度域)进行信号波形设计,使信号避免被干扰。其次,它未采用载波调制,而是使用一个类似于噪声的基函数进行数据调制。本文详细介绍了TDCS的原理,在此基础上使用SIMULINK搭建了TDCS的动态仿真平台,并在此平台上完成了TDCS的动态仿真及系统性能分析。
TDCS (transform domain communication system) is a recently proposed communication system. A dynamic simulation platform for (TDCS) is designed in this paper. The platform can be used to develop, simulate and evaluate the processing algorithms, such as adaptive transform domain filter and time-frequency joint analysis. Another important function of the platform is to carry out the evaluation of the dynamic performance of the system. A TDCS using wavelet transform is analyzed on the platform and the results indicate that the TDCS has LPI characteristic and strong anti-NBI ability.
出处
《系统仿真学报》
CAS
CSCD
2004年第4期692-695,共4页
Journal of System Simulation
关键词
抗干扰
低截获(LPI)
系统仿真
波形设计
变换域
narrow band interference rejection
low probability of interception
system simulation
waveform design
transform domain
