Title :
Complex digital compensator for RF filter distortions
Author :
Alijan, Mehdi ; Salt, J.E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Saskatchewan, Saskatoon, SK, Canada
Abstract :
To combat the distortions introduced by RF filters in the transmitter, a digital filter can be used for compensation. The compensating filter has to be a complex coefficient low pass digital filter. In this paper, a method to design this complex digital compensator is presented. The virtue of the method presented is low filter order and simplicity of the coefficient-finding algorithm. Simulation results show the Modulation Error Ratio (MER) performance of this method.
Keywords :
digital communication; digital filters; distortion; modulation; radio transmitters; RF filter distortions; coefficient-finding algorithm; complex digital compensator; digital communication systems; digital filter; low pass digital filter; modulation error ratio; transmitter; Algorithm design and analysis; Chebyshev approximation; Delay; Finite impulse response filter; Modulation; Optimization; Radio frequency; Amplitude Response; Finite Impulse Response; Group Delay; Modulation Error Ratio; Pole/Zero;
Conference_Titel :
Electrical and Computer Engineering (CCECE), 2011 24th Canadian Conference on
Conference_Location :
Niagara Falls, ON
Print_ISBN :
978-1-4244-9788-1
Electronic_ISBN :
0840-7789
DOI :
10.1109/CCECE.2011.6030414
