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Methods for quadrature modulator imbalance compensation

By Karel Povalač


Quadrature modulator (demodulator) is used in transmitting (receiving) part of many devices. Unwanted imbalance can influence amplitude, phase or DC offset of modulator (demodulator). Correction of imbalance was a main subject of thesis. Simulations of these methods were created in MATLAB and results were compared. Basics of methods were implement on programmable logic field by program Xilinx ISE. Development kit V2MB1000 with analogue board Memec P160 was chosen for this purpose. In the last part were compare simulation results with practical measurement

Topics: QPSK; DCM; nesymetrie modulátoru; FPGA; VHDL; Modulation; DDS; symbolová rychlost; ModelSim; FIR filter; Xilinx; Virtex 2; MATLAB; symbol rate; Modulace; FIR filtr; modulator imbalance; 8PSK
Publisher: Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií
Year: 2008
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