A kind of multi-carrier signal modulation method
A technology of multi-carrier signal and multi-carrier modulation, applied in the direction of modulated carrier system, multi-frequency code system, digital transmission system, etc., can solve the problem of high peak-to-average power ratio of multi-carrier modulated signal, achieve optimal energy aggregation, reduce Effect of signal distortion, small out-of-band leakage
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[0066] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
[0067] like Figure 1-2 The multi-carrier signal modulation method shown includes the following steps:
[0068] (1) Group the input bit information data: the serial input binary bit period is T b the bitstream b i Divided into k groups, i=1,2,..., each group is a bit stream data block composed of N bits, with a k,n represents, where: k=1,2,...,n=1,2,...,N, N also represents the Nth subcarrier, a k,n To satisfy the CPM modulator input information symbol sequence value ±1 (binary), a 1,n represents the first group of N-bit data blocks, a 2,n Represents the second group of N-bit data blocks, and so on k,n represents the N-bit data block of the kth group;
[0069] (2) The grouped binary signal is converted into a complex signal by the CPM mapper: the {a obtained in...
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