Receiver and wireless lan apparatus in which a received signal is correlated to a reference symbol

摘要

A receiver comprising: an antenna which receives a radio signal including N possible symbols {c₁⁽ⁿ⁾, c₂⁽ⁿ⁾, c_M-1⁽ⁿ⁾, c_M⁽ⁿ⁾}, an N correlation units which are provided corresponding to the N possible symbols, respectively, each correlation unit detecting the degree of correlation with the radio signal received by the antenna, and a symbol determination unit which determines the symbol included in the radio signal received by the antenna based on the degree of correlation detected by the N correlation units. The N correlation units detect the degree of correlation between the radio signal received by the antenna and the N possible symbols represented by M chips {alpha₀c₁⁽ⁿ⁾,alpha₀c₂⁽ⁿ⁾+alpha₁c₁⁽ⁿ⁾, . . . ,alpha₀c_M-1⁽ⁿ⁾+alpha₁c_M-2⁽ⁿ⁾, alpha₀c_M⁽ⁿ⁾+alpha₁c_M-1⁽ⁿ⁾}.