【摘要】 研究了将多载波应用于定位系统的方法,阐述了多载波定位系统的设计方案,给出了发射机和接收机模型,分析了序列采样原理及载频的选取.将常规扩频定位系统和多载波定位系统的性能做了比较,仿真结果表明,该定位系统具有高的频带利用率,同时具有普通单载波宽带直扩系统的定位测距性能.非常适合于频带受限的环境采用.更多还原

【Abstract】 The application of multicarrier to radiolocation systems was discusssed with their design methods discussed ,models of transmitter and receiver given,and sequence sampled and carriers selected.The multicarrier radiolocation system was compared with conventional DSSS system.The results of simulation show that the range measurement uncertainty of this technique can be made almost identical to that of conventional wideband system,but spectrum efficiency can be greatly improved.It suits an environment with spectrum restricted very well.更多还原