Estimation of Adaptive Antenna Induced Code and Carrier Phase Bias in GNSS Receivers

Various GNSS applications require low-cost, small-scale, lightweight and power-saving GNSS devices and require high precision in terms of low noise for carrier phase and code observations. Applications vary from navigation approaches to positioning in geo-monitoring units up to integration in multi-sensor-systems. For highest precision, only GNSS receivers are suitable that provide access to raw data such as carrier phase, code ranges, Doppler and signal strength. A system integration is only possible if the overall noise level is known and quantified at the level of the original observations. A benchmark analysis based on a zero baseline is proposed to quantify the stochastic properties. The performance of the consumer grade GNSS receiver is determined and evaluated against geodetic GNSS receivers to better understand the utilization of consumer grade receivers. Results indicate high similarity to the geodetic receiver, even though technical limitations are present. Various stochastic techniques report normally distributed carrier-phase noise of 2 mm and code-range noise of 0.5–0.8 m. This is confirmed by studying the modified Allan standard deviation and code-minus-carrier combinations. Derived parameters serve as important indicators for the integration of GNSS receivers into multi-sensor-systems.

Download Full-text

Adaptive blind anti-jamming algorithm using acquisition information to reduce the carrier phase bias

GPS Solutions ◽

10.1007/s10291-018-0764-4 ◽

2018 ◽

Vol 22 (4) ◽

Cited By ~ 4

Author(s):

Qiongqiong Jia ◽

Renbiao Wu ◽

Wenyi Wang ◽

Dan Lu ◽

Lu Wang

Keyword(s):

Carrier Phase ◽

Acquisition Information ◽

Phase Bias

Download Full-text

Mitigation of Adaptive Antenna Induced Bias Errors in GNSS Receivers

IEEE Transactions on Aerospace and Electronic Systems ◽

10.1109/taes.2011.5705689 ◽

2011 ◽

Vol 47 (1) ◽

pp. 524-538 ◽

Cited By ~ 36

Author(s):

Andrew J. OBrien ◽

Inder J. Gupta

Keyword(s):

Adaptive Antenna ◽

Gnss Receivers

Download Full-text

Enhancing Weak-Signal Carrier Phase Tracking in GNSS Receivers

International Journal of Navigation and Observation ◽

10.1155/2015/295029 ◽

2015 ◽

Vol 2015 ◽

pp. 1-15 ◽

Cited By ~ 6

Author(s):

James T. Curran

Keyword(s):

Steady State ◽

Transient Response ◽

Carrier Phase ◽

Thermal Noise ◽

Weak Signal ◽

Phase Tracking ◽

Cycle Slips ◽

Gnss Receivers ◽

Carrier Phase Tracking ◽

Motion Design

Examining the performance of the GNSS PLL, this paper presents novel results describing the statistical properties of four popular phase estimators under both strong- and weak-signal conditions when subject to thermal noise, deterministic dynamics, and typical pedestrian motion. Design routines are developed which employ these results to enhance weak-signal performance of the PLL in terms of transient response, steady-state errors, and cycle-slips. By examining both single and data-pilot signals, it is shown that appropriate design and tuning of the PLL can significantly enhance tracking performance, in particular when used for pedestrian applications.

Download Full-text