Normalizing apparatus for adaptive beamforming in smart antenna receiving system

摘要

PURPOSE: A normalization apparatus is provided to reduce the size of hardware for system configuration and improve a real time processing speed. CONSTITUTION: A normalization apparatus comprises a multiplying unit for carrying out a multiplying operation required in a normalization process; a dividing unit for carrying out a dividing operation required in a normalization process through a binary log and subtracting operation; and a multiplexer(210) for synchronizing the signals received from a smart antenna receiver with a predetermined clock, and outputting the signals to the multiplying unit. The multiplying unit includes a binary log generator(220) for converting the signals input from the multiplexer into a binary log value and outputting the binary log value; a shift left(240) for outputting the output of the binary log generator into a double size; and a binary inverse log generator(250) for converting the output of the shift left into a binary inverse log value and outputting the binary inverse log value. The dividing unit includes a NORM binary log generator(270) for converting the NORM function value output from an adder into a binary log value and outputting the binary log value; a subtractor for subtracting the output of the NORM binary log generator from the output of a shift register(230); and a NORM binary inverse log generator(290) for converting the output of the subtractor into a binary inverse log value and outputting the binary inverse log value.