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2010•Systems engineering and electronicsRequires access

New option for modulation in GNSS signal design

Ke Ting

Open publisher page 4 citations

Abstract

In order to design high-performance navigation signals in crowded L frequency band,this paper proposes that some of the signals in L band can use minimum shift keying(MSK) modulation.Firstly,the general mathematical model of minimum shift keying-binary offset carrier(MSK-BOC) modulation is established.Then,simulations about the code tracking error,multipath error envelope,autocorrelation function and power spectral density are performed using the typical navigation signals of GPS L1-CA,GPS L1-P(Y) and GPS L1-M.The results are analyzed and indicate that when the navigation signal meets some requirements,the MSK modulation is better than binary phase shift keying(BPSK) modulation.

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What this paper is about

In order to design high-performance navigation signals in crowded L frequency band,this paper proposes that some of the signals in L band can use minimum shift keying(MSK) modulation.Firstly,the general mathematical model of minimum shift keying-binary offset carrier(MSK-BOC) modulation is established.Then,simulations about the code tracking error,multipath error envelope,autocorrelation function and power spectral density are performed using the typical navigation signals of GPS L1-CA,GPS L1-P(Y) and GPS L1-M.The results are analyzed and indicate that when the navigation signal meets some requirements,the MSK modulation is better than binary phase shift keying(BPSK) modulation.

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Available abstract

In order to design high-performance navigation signals in crowded L frequency band,this paper proposes that some of the signals in L band can use minimum shift keying(MSK) modulation.Firstly,the general mathematical model of minimum shift keying-binary offset carrier(MSK-BOC) modulation is established.Then,simulations about the code tracking error,multipath error envelope,autocorrelation function and power spectral density are performed using the typical navigation signals of GPS L1-CA,GPS L1-P(Y) and GPS L1-M.The results are analyzed and indicate that when the navigation signal meets some requirements,the MSK modulation is better than binary phase shift keying(BPSK) modulation.

Key concepts: Binary offset carrier modulation, Phase-shift keying, Amplitude and phase-shift keying, Minimum-shift keying, Multipath mitigation, Global Positioning System, Keying, Computer science

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New option for modulation in GNSS signal design — Research Paper | ScholarLens