Nanko Healnt Hadam demodulator

摘要

In the past, a demodulator has been implemented based on the maximum likelihood demodulation concept, which is a Nkhohermal Hadamard demodulator that assumes that a row having the largest square value of the magnitude values among the correlation values obtained in the complex number form is transmitted.;Of the received complex information, only size information A_mAnd the phase information _mIs not used.;However, the present invention relates to a new implementation of a Hadamard demodulator used in a reverse link of a CDMA mobile communication system, and is a Nkho heuristic Hadamoder which improves performance by using phase information in a maximum value selection process during a demodulation process.;The present invention is characterized in that it comprises a Hadamard correlation unit (1), a maximum value selector (2), a phase estimation and processor (3), and performs a demodulation process. The configuration of the present invention is equally applicable to serial implementations as well as parallel implementations.;The present invention can be confirmed by simulating that the present invention is applied to an actual CDMA mobile communication system to increase the channel capacity by about 20%.