Range Measurement as Practiced in the Deep Space Network

Berner, Jeff B.; Bryant, Scott; Kinman, Peter

doi:10.1109/jproc.2007.905128

Cited by 33 publications

(12 citation statements)

References 7 publications

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“…2 and Fig 3. is acquired, following the approach outlined in Fig.4. In mode 3, athe VLBI station transmits the signals as described in (2)…”

Section: A Snr Of Signal In the Intermediate Frequency (If)mentioning

confidence: 99%

“…Through high precision orbit measurement data, the ground stations can precisely define the orbit of the spacecraft and control it effectively. The ground station calculates the distance by measuring the time delay to the spacecraft [2]. The Doppler of the spacecraft is measured considering the carrier phase rate [3], and the measurement of these two parameters can provide high precision information along the line of sight direction.…”

Section: Introductionmentioning

confidence: 99%

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A New Very Long Baseline Interferometry Method Based on the Uplink Signal

Xue

2020

IEEE Access

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Very long baseline interferometry (VLBI) is widely used for astronomical observations and navigation of deep space receivers. To solve the problems of the downlink signal being excessively weak to be received and the excessively large acquisition time, a new VLBI measurement method based on the uplink signal is proposed. Deep space ground stations can provide radio measurement signals for deep space spacecraft via the uplink. The range, Doppler and VLBI can be determined by the spacecraft through signals from multiple ground stations. In this manner, a higher signal to noise ratio (SNR) can be obtained. This study involves the development of a prompt acquisition algorithm for high dynamic deep space signals. Furthermore, the measurement and tracking of the phases of multiple VLBI stations by deep space receiver employing the uplink are analyzed. The use of the algorithms reduce the acquisition time for deep space receiver, and high precision results can be obtained for the VLBI measurement. Compared with the traditional VLBI method, the ranging error on the same distance is effectively improved, and the angle measurement accuracy is better than delta differential one way ranging (DOR). Because multiple spacecraft are not needed, there are fewer limitations than same beam interferometry (SBI). INDEX TERMS Navigation, very long baseline interferometry, acquisition and tracking, interferometry.

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“…2 and Fig 3. is acquired, following the approach outlined in Fig.4. In mode 3, athe VLBI station transmits the signals as described in (2)…”

Section: A Snr Of Signal In the Intermediate Frequency (If)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Very Long Baseline Interferometry Method Based on the Uplink Signal

Xue

2020

IEEE Access

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“…Radio navigation is the major way to locate the spacecraft. NASA utilized the Deep Space Network (DSN) to track the deep space explorer; the coverage rate reaches about 95% [6], [7]. However, spacecraft eclipse and long signal delay time, caused by far distance between ground stations and the deep space explorers, are two major drawbacks of radio navigation.…”

Section: China Has Established a Mars Exploration Project And Plansmentioning

confidence: 99%

Geometric Coplanar Constraints-Aided Autonomous Celestial Navigation for Spacecraft in Deep Space Exploration

Ning

Chen

et al. 2019

IEEE Access

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Autonomous celestial navigation has been exploited for orbit determination of deep space exploration. Geometric constraints in celestial measurement are the inherent attributes in actual comprehensive autonomous celestial navigation physical systems; they are usually neglected in autonomous navigation systems which causes a loss of information in measurement. For the purpose of high-precision autonomous celestial navigation, the geometric constraints should be utilized as fully as possible. This paper proposes a geometric coplanar constraint for the mutually dependent celestial measurement (line of sight or vectors), and the geometric coplanar constraint model is established. The sequence quadratic program (SQP) algorithm based on the geometric coplanar constraint is put forward to eliminate the dependence of multiple celestial measurements, and suppress the noises in celestial measurement geometrically. Taking both geometry coplanar constraints of celestial measurement and the nonlinear characteristics of system models into account, cubature Kalman filter with measurement optimization is proposed for decreasing the random noise in measurements geometrically and statistically. Simulations demonstrate that the proposed geometric coplanar constraints-aided autonomous celestial navigation method can effectively eliminate the measurement noise geometrically and statistically, and achieve high-precision performance.

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“…where f RC is the frequency of the range clock, A C is the fractional loss of correlation due to frequency mismatch (0 for coherent mode with assuming Doppler rate aiding [59]; | sin c(2f RC T )| for regenerative mode, where f RC depends on oscillator accuracy and stability, with no Doppler rate aiding assumed), R 1 is cross-correlation factors for the PN code, T is the integration time (in seconds), and P R N0 | D/L is the ranging signal signal-to-noise ratio on the downlink. For turn-around ranging, the uplink noise has a much higher contribution to the downlink signal-to-noise ratio than regenerative ranging.…”

Section: Strawman Design Of Crosslink Ranging Systemmentioning

confidence: 99%

A space-based decametric wavelength radio telescope concept

et al. 2018

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This paper reports a design study for a space-based decametric wavelength telescope. While not a new concept, this design study focused on many of the operational aspects that would be required for an actual mission. This design optimized the number of spacecraft to insure good visibility of approx. 80% of the radio galaxies-the primary science target for the mission. A 5,000 km lunar orbit was selected to guarantee minimal gravitational perturbations from Earth and lower radio interference. Optimal schemes for data downlink, spacecraft ranging, and power consumption were identified. An optimal mission duration of 1 year was chosen based on science goals, payload complexity, and other factors. Finally, preliminary simulations showing image reconstruction were conducted to confirm viability of the mission. This work is intended to show the viability and science benefits of conducting multi-spacecraft networked radio astronomy missions in the next few years.

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Range Measurement as Practiced in the Deep Space Network

Cited by 33 publications

References 7 publications

A New Very Long Baseline Interferometry Method Based on the Uplink Signal

A New Very Long Baseline Interferometry Method Based on the Uplink Signal

Geometric Coplanar Constraints-Aided Autonomous Celestial Navigation for Spacecraft in Deep Space Exploration

A space-based decametric wavelength radio telescope concept

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