超宽带冲激无线电相关接收器的仿真比较

超宽带相关接收器的设计是超宽带冲激无线电接收机实现信号接收的关键之一,针对使用二阶高斯脉冲的超宽带冲激无线电相关接收器的特点,建立了相应的仿真模型,在Simulink平台下实现了对超宽带冲激无线电相关接收器的模拟,采用了T-R(发送-参考)自相关和互相关三种相关接收机方案,分别通过高斯噪声信道和多径信道进行相关仿真,对比了各种相关接收器的脉冲检测效果,验证了相关检测技术从噪声环境中提取超宽带信号的能力,为超宽带相关接收机系统的优化设计提供了参考.

Simulation Comparison of Impulse Radio Correlation Receiver

Design of UWB(Ultra Wide Band)correlator is one of the keys for UWB impulse radio receiving the UWB signal. In this paper,the simulation models are constructed according to the characteristics of impulse radio correlator using Gaussian second derivative pulse,and the impulse radio correlators are implemented in the Simulink tool. Three correlation receiver schemes of T-R autocorrelation receiver and correlation receiver are presented and simulated through Gaussian noise channel and multipath channel,and the effect of the pulse detection is showed by contrasting every correlator. The ability of the correlation technology to pick-up the UWB signal from the noise environment is validated. It provides the reference for the optimized design of UWB correlation receiver.