Title :
Investigation of Ultra-Wideband Pulse Distortion Due to the Body Shadowing
Author :
Pradabphon, Apichit ; Doungdeun, Worawoot ; Chamchoy, Monchai ; Supanakoon, Pichaya ; Promwong, Sathaporn
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok
Abstract :
In this paper, the distortion of ultra-wideband (UWB) pulse due to the human body shadowing is investigated. The frequency responses of the radio channels are acquired by using a vector network analyzer (VNA) over the frequency bandwidth of 3 GHz to 11 GHz. The experimental channels are taken for several T-R separation distances in the indoor environment. Consequently, the characteristics of the UWB pulse distortion including the effect of transmitter/receiver antennas and human body are examined. The pulse distortion is considered by using the percentage of the correlation coefficient between the transmitted signal and the received signal. As the results, the distortion of UWB pulse increases as the T-R separation distance increases, especially when the fully shadowing is observed
Keywords :
indoor communication; receiving antennas; transmitting antennas; ultra wideband antennas; ultra wideband communication; wireless channels; 3 to 11 GHz; T-R separation distance; UWB pulse; VNA; body shadowing; correlation coefficient; indoor environment; radio channel; received signa; transmitted signal; transmitter-receiver antenna; ultra-wideband pulse distortion; vector network analyzer; Bandwidth; Frequency; Humans; Indoor environments; Radio transmitters; Receivers; Receiving antennas; Shadow mapping; Transmitting antennas; Ultra wideband technology; human body shadowing; pulse distortion; ultra wideband (UWB);
Conference_Titel :
Information, Communications and Signal Processing, 2005 Fifth International Conference on
Conference_Location :
Bangkok
Print_ISBN :
0-7803-9283-3
DOI :
10.1109/ICICS.2005.1689165
