Ranging Performance Analysis and Discriminator Parameters Optimization for Double Estimator Technology

Gao, Yang; Chu, Henglin; Yao, Zheng; Cui, Xiaowei

doi:10.1007/978-981-10-4588-2_85

Cited by 1 publication

(2 citation statements)

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“…Once again, without considering the noise interference, the received signal with N ‐ray multipath can be written as

r_{N} ((), t) = italicAx ((), t - τ_{0}) cos ((), ω_{0} t + φ_{0}) + \sum_{i = 1}^{N} α_{i} italicAx ((), t - τ_{0} - τ_{i}) cos ((), ω_{0} t + φ_{0} + φ_{i}),

where τ i ( τ i > 0, i = 1, … N ) defines the multipath code delay, φ i (0 < φ i < 2 π , i = 1, … N ) defines the multipath carrier phase delay, and α i (0 < α i < 1, i = 1, … N ) defines the multipath attenuation. A common way to access the effects of the specular multipath is to compute the multipath error envelopes (MEEs), which are proposed in Irsigler et al and have been widely used in a variety of works . We also assess our proposed method with this criterion and compare the performance with other types of methods.…”

Section: Performance Evaluationmentioning

confidence: 99%

“…The bump‐jumping method uses additional correlators to determine whether or not to jump to the centre peak . The 2D methods, including double estimator and double phase estimator (DPE), use multicorrelators to estimate the subcarrier phase as additional ranging information. The coherent estimator proposed in Borio uses a pair of tracking loops to process the upper and lower sideband to achieve an unambiguous BOC signal tracking.…”

Section: Introductionmentioning

confidence: 99%

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Code phase discrimination function shaping method for Compass B1C QMBOC (6,1,4/33) signal

Wang

2018

Satell Commun Network

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The discrimination function shaping method has been proposed to improve the antimultipath performance for a global navigation satellite system receiver. However, the existing methods fail to fully exploit the potential anti-multipath performance of multiplexed binary offset carrier (MBOC)-modulated signals. In this paper, a code phase discrimination function shaping method is proposed for a Compass B1C quadrature MBOC-modulated signal. The in-phase binary offset carrier (BOC) (1,1) signal and quadrature-phase BOC (6,1) signal replicas are designed according to the least squares estimation. Then a shifted cross-correlation function (CCF) between the in-phase BOC (1,1) signal and its pseudorandom noise code is multiplied with the obtained CCFs to ensure an unambiguous tracking. Finally, a discrimination function with a small pull-in range can be obtained by a weighed combination of the in-phase and quadrature-phase CCFs. A computer simulation is conducted to assess the performances under multipath and thermal noise conditions. KEYWORDS global navigation satellite system, multipath effect, quadrature multiplexed binary offset carrier, shaping, tracking

show abstract

“…Once again, without considering the noise interference, the received signal with N ‐ray multipath can be written as

r_{N} ((), t) = italicAx ((), t - τ_{0}) cos ((), ω_{0} t + φ_{0}) + \sum_{i = 1}^{N} α_{i} italicAx ((), t - τ_{0} - τ_{i}) cos ((), ω_{0} t + φ_{0} + φ_{i}),

Section: Performance Evaluationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Code phase discrimination function shaping method for Compass B1C QMBOC (6,1,4/33) signal

Wang

2018

Satell Commun Network

View full text Add to dashboard Cite

show abstract

Ranging Performance Analysis and Discriminator Parameters Optimization for Double Estimator Technology

Cited by 1 publication

References 5 publications

Code phase discrimination function shaping method for Compass B1C QMBOC (6,1,4/33) signal

Code phase discrimination function shaping method for Compass B1C QMBOC (6,1,4/33) signal

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