Secret communication method based on fraction order Fourier transform order-multiplexing
A fractional Fourier, secure communication technology, applied in the field of information security, can solve the problem that the fractional Fourier transform order is not fully utilized and so on
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[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0037] The secure communication technology based on fractional Fourier transform proposed by the present invention comprises the following steps
[0038] 1. Design of Fractional Fourier Domain Multiplexer
[0039] (1) According to the number M of users in the designed system, select M that satisfies the invertibility condition of matrix C in formula (3) 2 a fractional Fourier transform order, below, we briefly discuss the multiplexing order p i The selection method of , the determinant value of matrix C in formula (3) can be expressed as the form shown in formula (8)
[0040] | C | = Π i = 0 M - 1 e - j ·...
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