| LPD | Low Probability of Detection |
| LPI | Low Probability of Interception |
| NRPCS | Noise-like Random Phase Communication System |
| CCSK | Cyclic Code Shift Keying |
| WFRFT | Weighted-type Fractional Fourier Transform |
| MPWFRFT | Multi-parameter Weighted-type Fractional Fourier Transform |
| PAPR | Peak to Average Power Ratio |
| FMW | Fundamental Modulation Waveform |
| OFDM | Orthogonal Frequency Division Multiplexing |
| PSD | Power Spectrum Density |
| LFSR | Linear Feedback Shift Register |
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