Title :
A study of automatic steering for suppression of ghosts in TV reception
Author :
Horiki, Yasutaka ; Walton, Eric K.
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
The local TV broadcast stations operate in the UHF band. These signals are subject to multipath effects in many cases by reflections from buildings and other structures in the broadcasting area. These multipath effects produce delayed signals (ghosts) in the original TV signal. A technique using a smart antenna can be one of the solutions to cancel these multipath signals. A smart antenna is an antenna array system and controller that automatically recognizes desired/undesired signals and adjusts the complex weights of the antenna array to optimize the ratio of the desired to the undesired signals. This paper discusses a small array using a -steering algorithm.
Keywords :
UHF antennas; adaptive antenna arrays; antenna phased arrays; interference suppression; multipath channels; television antennas; television interference; television reception; SNR optimization; TV antenna; TV broadcast stations; TV reception; UHF band; antenna array system; automatic steering; complex weights; controller; ghost suppression; multipath effects; smart antenna; Antenna arrays; Autocorrelation; Coaxial cables; Coaxial components; Conductors; Delay; Frequency; Phased arrays; Receiving antennas; TV;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2002. IEEE
Print_ISBN :
0-7803-7330-8
DOI :
10.1109/APS.2002.1016041
