Reception signal processing device and method for cancelling self-interference signal generated by transmission signal

A reception signal processing device for cancelling a self-interference signal generated by a transmission signal of a transceiver, the device comprising:

• a receiver for receiving a reception signal including a self-interference signal;
• a memory storing instructions;
• and
• a processor executing the instructions stored in the memory,
• wherein the instructions, when executed by the processor, cause the processor to:
• generate a moment of the reception signal;
• generate an orthogonal polynomial by calculating orthogonal polynomial coefficients from the moment;
• and
• cancel the self-interference signal included in the reception signal using the orthogonal polynomial,
• wherein the processor is configured to generate the moment from distribution of the reception signal using Equation 1 shown below,
• μ
• m
• =
• 1
• N
• ⁢
• ∑
• n
• ❘
• "\[LeftBracketingBar]"
• x
• [
• n
• ]
• ❘
• "\[RightBracketingBar]"
• m
• [
• Equation
• ⁢
• 1
• ]
• Here, μm represents a moment, N represents a unit time, and x[n] represents a reception signal vector of n-th time.