摘要
信道测量是获取信道特性最有效最直接的方式之一。随着测量带宽的增加,测量精度的提升以及测量指标的丰富,在无线信道测量过程中消除测量设备系统响应成为不可忽视的重要步骤。研究了测量设备系统响应对客观物理信道的影响,并提出了一种消除测量设备系统响应的理论方法。通过实验室模拟测试与实地场景测量的实测数据,验证了所提出方法的可行性,同时分析了影响测量设备系统响应的客观因素以及采样色散对信道冲击响应的影响。
Channel measurement is one of the most effective and direct ways to obtain the channel characteristics. With the increasing of measurement bandwidth, the improvement of measurement accuracy and the richness of measurement indexes, eliminating the system response in wireless channel measurement process becomes an important step not to be neglected. In this paper, the effect of the system response of the channel sounder on objective physical channel is investigated, and a theoretical method of eliminating the system response of the channel sounder is proposed. Based on the laboratory-emulated and realistic site measurement data, the feasibility of the proposed method is verified. Meanwhile, the objective factors affecting the system response of the channel sounder and the influence of sampling dispersion on the channel impulse response are analyzed.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2016年第8期1878-1887,共10页
Chinese Journal of Scientific Instrument
基金
国家自然科学基金面上项目(61471027)
北京市科技新星计划(xx2016023)
东南大学移动通信国家重点实验室开放研究基金(2014D05)
北京市自然科学基金(4152043)项目资助
关键词
信道测量
信道冲击响应
系统响应消除
采样色散
channel measurement
channel impulse response
elimination of the system response
sampling dispersion
