Multi-symbol quasi-orthogonal OCDM radar communication integrated signal modulation method
A signal modulation and quasi-orthogonal technology, applied in the field of radar communication, can solve the problems of the deterioration of the integrated signal ambiguity, the uncertainty of communication modulation, and the influence of radar detection performance, etc. Correlation and cross-correlation properties, effect of slow sidelobe decay
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[0040] The present invention is described in further detail below in conjunction with accompanying drawing:
[0041] A multi-symbol quasi-orthogonal OCDM radar communication integrated signal modulation method. According to the system application requirements, the system requirements of the radar communication integrated system are determined, the system parameters are selected, and the baseband form of the OCDM symbol is obtained on this basis, and the corresponding mutual Two kinds of modulation symbols OCDM and Q-OCDM in a quasi-orthogonal relationship, according to the selection of the coding sequence, the symbols are arranged correspondingly to obtain a multi-symbol quasi-orthogonal OCDM signal. The specific steps are:
[0042] Step 1: Determine the parameters according to the application requirements, and obtain the symbolic expression s of the OCDM integrated baseband signal according to the nth subcarrier chirp signal I (t), the parameters include radio frequency carr...
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