A reception apparatus comprising: a reception unit for receiving first reception signals (16401 A, 16401 B) and second reception signals (16402A, 16402B) each obtained by receiving a plurality of signals transmitted from a plurality of antennas (312A, 312B) at the same time at the same frequency; and a demodulation unit demodulating the first reception signals (16401 A, 16401B) and the second reception signals (16402A, 16402B), wherein the first reception signals (16401 A, 16401B) are acquired by receiving a first transmission signal z1 and a second transmission signal z2, where the first transmission signal z1 and the second transmission signal z2 are generated for each of a plurality of slots by performing a precoding process that corresponds to one matrix, selected from among N matrices F[i] by hopping between the N matrices for each of the plurality of slots, on a first modulated signal s1 and a second modulated signal s2 respectively, and i is an integer no less than 0 and no greater than N - 1, and N is an integer greater or equal to 3, the second reception signals (16402A, 16402B) are acquired by receiving a first transmission signal z3 and a second transmission signal z4, where the first transmission signal z3 and the second transmission signal z4 are generated, by performing a precoding process that corresponds to one precoding matrix selected from among a plurality of matrices based on information fed back by the reception apparatus, on a first modulated signal s1 and a second modulated signal s2, respectively, the first transmission signal z1 and the second first transmission signal z2 included in the first reception signals satisfy (z1, z2) T = F[i](s1, s2) T, the precoding matrices F[i] satisfy F i = 1 α 2 + 1 e j θ 11 i α × e j θ 11 i + λ α × e j θ 21 i e j θ 21 i + λ + π where λ represents an arbitrary angle, and α represents a positive real number, and θ 11 (i) and θ 21 (i) satisfy e j θ 11 x − θ 21 x ≠ e j θ 11 y − θ 21 y for ∀ x, ∀ y x ≠ y; x, y = 0, 1, 2, ⋯, N − 2, N − 1. a reception unit for receiving first reception signals (16401 A, 16401 B) and second reception signals (16402A, 16402B) each obtained by receiving a plurality of signals transmitted from a plurality of antennas (312A, 312B) at the same time at the same frequency; and a demodulation unit demodulating the first reception signals (16401 A, 16401B) and the second reception signals (16402A, 16402B), wherein the first reception signals (16401 A, 16401B) are acquired by receiving a first transmission signal z1 and a second transmission signal z2, where the first transmission signal z1 and the second transmission signal z2 are generated for each of a plurality of slots by performing a precoding process that corresponds to one matrix, selected from among N matrices F[i] by hopping between the N matrices for each of the plurality of slots, on a first modulated signal s1 and a second modulated signal s2 respectively, and i is an integer no less than 0 and no greater than N - 1, and N is an integer greater or equal to 3, the second reception signals (16402A, 16402B) are acquired by receiving a first transmission signal z3 and a second transmission signal z4, where the first transmission signal z3 and the second transmission signal z4 are generated, by performing a precoding process that corresponds to one precoding matrix selected from among a plurality of matrices based on information fed back by the reception apparatus, on a first modulated signal s1 and a second modulated signal s2, respectively, the first transmission signal z1 and the second first transmission signal z2 included in the first reception signals satisfy (z1, z2) T = F[i](s1, s2) T, the precoding matrices F[i] satisfy F i = 1 α 2 + 1 e j θ 11 i α × e j θ 11 i + λ α × e j θ 21 i e j θ 21 i + λ + π where λ represents an arbitrary angle, and α represents a positive real number, and θ 11 (i) and θ 21 (i) satisfy e j θ 11 x − θ 21 x ≠ e j θ 11 y − θ 21 y for ∀ x, ∀ y x ≠ y; x, y = 0, 1, 2, ⋯, N − 2, N − 1.