Radio receiver and radio receiving method

摘要

Changeover control section 201 controls changeover operations of switch 202, switch 203 and symbols Dplus's including only +A are sorted and output to the memory 204 side and symbols Dminus's including -A are sorted and output to the memory 205 side, memory 204 and adder 206 perform in-phase additions between Dplus's and memory 205 and adder 206 perform in-phase additions between Dminus's and square addition section 207 calculates the squares of Dplus's after the in-phase addition and the squares of Dminus's after the in-phase addition and then adds up the squared Dplus's and Dminus's.