METHOD FOR EMBODYING DIVISION USING DIGITAL SIGNAL PROCESSOR AT THE TIME OF OFDM(ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING)

摘要

PURPOSE: A method for embodying division using digital signal processor at the time of OFDM(Orthogonal Frequency Division Multiplexing) is provided to embody division in a small cycle of a CPU(Central Processing Unit) using data scaling and lookup table when the OFDM is embodied by a digital signal processor. CONSTITUTION: A method for embodying division using digital signal processor at the time of OFDM(Orthogonal Frequency Division Multiplexing) includes the steps of making a division lookup table into an inside memory of the digital signal processor, receiving a first input value of a predetermined digit from a first input terminal of an inside multiplier of the digital signal processor, receiving a second input value of a predetermined digit from the division lookup table in a second input terminal of the inside multiplier, and multiplying the first input value and the second input value and obtaining the division result by using shift right instruction to the extent of the predetermined digit.