Design and Performance Analysis of Navigation Signal Based on OFDM

This paper proposes a new navigation modulation based on orthogonal frequency division multiplexing (OFDM). We derived the autocorrelation function and power spectral density of OFDM modulation. The influence cyclic prefix zero-padding is discussed. parameters signal performance was deeply analyzed, which can help designers choose parameters. main peak proposed narrow has good tracking accuracy. sidelobe lower, delay locking loop more robust. spectrum evenly distributed in lobe signal, anti-interference good. By comparing signals with other signals, it be found that have accuracy strong ability. Combined communication low bit error rate for integration potential, meet business requirements future market.