Title :
Time reversal with MISO for ultra-wideband communications: experimental results
Author :
Qiu, Robert C. ; Zhou, Chenming ; Guo, Nan ; Zhang, John Q.
Author_Institution :
Dept. of Electr. & Comput. Eng., Tennessee Technol. Univ., Cookeville, TN, USA
Abstract :
Time reversal (TR) communications marks a paradigm shift in UWB communications. The system complexity can be shifted from the receiver to the transmitter, which is ideal to UWB sensors. UWB multiple input single output (MISO) is enabled by the use of the TR scheme. Two basic problems are investigated experimentally using short UWB radio pulses (nanosecond duration). Temporal focusing and SNR increase with the number of antennas are verified. Also, reciprocity of realistic channels, the foundation of TR, is demonstrated for the first time in electromagnetics.
Keywords :
receiving antennas; sensors; telecommunication channels; transmitting antennas; ultra wideband communication; SNR; UWB communications; UWB multiple input single output; UWB sensors; electromagnetics; receivers; system complexity; time reversal communications; transmitters; ultrawideband communications; Acoustic distortion; Autocorrelation; Chirp; Computer aided manufacturing; Paper technology; Pulp manufacturing; Receiving antennas; Transmitters; Transmitting antennas; Ultra wideband technology;
Conference_Titel :
Radio and Wireless Symposium, 2006 IEEE
Print_ISBN :
0-7803-9412-7
DOI :
10.1109/RWS.2006.1615203
