CAJ | 학술논문

车辆协作定位技术可以用来提高现有定位技术的定位精度，其关键是车辆间距离的测量。目前常用的测距方法是无线电测距，其中备受关注的是接收信号强度( RSS)测距，因其简单易实施，但RSS技术的测量精度受限于路径衰耗模型的选择。通过对现有协作定位测距技术的研究，综合考虑车载环境，提出了一种新的测距方法：基于多普勒频移与接收信号强度( Doppler-RSS)混合的测距方法。通过将多普勒频移和接收信号强度相结合，进行车辆间距离的测量。仿真结果表明，该方法切实可行。
차량협작정위기술가이용래제고현유정위기술적정위정도，기관건시차량간거리적측량。목전상용적측거방법시무선전측거，기중비수관주적시접수신호강도( RSS)측거，인기간단역실시，단RSS기술적측량정도수한우로경쇠모모형적선택。통과대현유협작정위측거기술적연구，종합고필차재배경，제출료일충신적측거방법：기우다보륵빈이여접수신호강도( Doppler-RSS)혼합적측거방법。통과장다보륵빈이화접수신호강도상결합，진행차량간거리적측량。방진결과표명，해방법절실가행。
Cooperative Positioning ( CP) can be used for improving positioning accuracy of the existing positioning techniques. However the key for the CP is measuring the distance between vehicles. Currently,there are many methods of radio range used for ranging. Among them,radio ranging based on Received Signal Strength (RSS) is popular for its simplicity. However,the accuracy of this method relies on the selection of channel loss model. Through investigating the present ranging techniques,and considering the vehicle network environ-ments comprehensively,propose a new ranging method-Hybrid Doppler-RSS ranging. Through combining the Doppler shift and the re-ceived signal strength,estimate the distance between vehicles. The simulation results show that this method is feasible.