⚡ 本页包含 AI 生成的分析内容,仅供参考
该论文提出了一种用于室内定位的实时采样接收器,采用时间扩展方法实现了20GS/s的采样率和1.9mm的定位精度。解决传统IR-UWB接收机在时间分辨率上的限制。
Contrary to conventional continuous-wave communication technologies, Impulse-radio Ultra-Wideband (IR-UWB) allows to have various functionalities such as communication, localization and radar by using a short pulse [1-4]. Also the short pulse occupies an extremely small period of time of the entire transmission period, so it is possible to consider a special technique for digitization of the short pulse which is essential for above applications. Conventional IR-UWB receiver architectures detect an impulse by an analog correlation method, direct-sampling method, and equivalent time sampling (sub-sampling) [1,2]. The analog correlation method performs correlation in the analog domain. However the analog correlation method suffers from multipath effects which aggravates ranging accuracy with its analog signal processing limitation [1]. In the direct-sampling method, the received pulses are directly
Hong Gul Han, Byung Gyu Yu, Tae Wook Kim
Yonsei University, Seoul, Korea