A signal processing method comprising rearranging transmission data so that a predictable portion of the transmission data is spread more uniformly in the transmission data, the predictable portion including information that is predictable by a receiver side. The phase of a carrier signal can be modulated based on the rearranged transmission data, and the modulated signal may be transmitted. The transmitted signal is received by the receiver side. A header position of each frame of the received signal is detected based on the information predictable to the receiver side. Once detected, the frames of the received signal are integrated, and the transmission data is decoded based on the integration. A signal processing device, a transmitter, and/or a receiver may utilizes these methods to transmit, receive, and/or process signals.