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- W4320031189 abstract "Constant envelope (CE) waveforms are desired for global navigation satellite system (GNSS) due to the fixed amplitude gain and fixed phase offset even after a nonlinear amplifier. Wideband multi-carrier modulation is also beneficial for GNSS in both saving the number of High Power Amplifiers (HPAs) and enhancing the coherency of different GNSS bands. In this paper, we propose multi-carrier CE waveforms (MCEW) compatible with existing GNSS user equipment. We first combine the GNSS channels using subcarriers. Then additional inter-modulation terms are added to create the CE signals. Our framework is generic to convert separate GNSS waveforms to a wideband multi-carrier CE modulation which can be demodulated using existing user equipment. We evaluate the performance of MCEW on GPS L2 and L5 channels. In addition to the navigation PRN chip error rate (CER), we compute the correlation loss (CL) and S-curve bias (SCB). The results demonstrate the efficiency and backward compatibility of the proposed MCEW." @default.
- W4320031189 created "2023-02-12" @default.
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- W4320031189 date "2022-11-28" @default.
- W4320031189 modified "2023-09-27" @default.
- W4320031189 title "Multi-carrier Constant Envelope GNSS Waveforms Compatible with Existing User Equipment" @default.
- W4320031189 cites W1576260527 @default.
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- W4320031189 doi "https://doi.org/10.1109/milcom55135.2022.10017680" @default.
- W4320031189 hasPublicationYear "2022" @default.
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