Telemetry ranging using software-defined radios

Hennawy, Joseph; Adams, Norman H.; Sanchez, Erika A.; Srinivasan, Dipak; Hamkins, Jon; Vilnrotter, V.; Xie, Huan; Kinman, Peter

doi:10.1109/aero.2015.7119178

Cited by 7 publications

(2 citation statements)

References 4 publications

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“…The spacecraft, instead of transmitting in downlink a replica of the received ranging signal (see Section III-D), samples its code phase and encodes it into 40 bits of the TM transfer frame. This technique has been initially proposed and implemented as a prototype by NASA in the studies [66]- [68]. Currently, ESA is performing internal studies on whether to consider it or not for implementation.…”

Section: F Survey Of Additional Techniquesmentioning

confidence: 99%

A Tutorial on the Tracking, Telemetry, and Command (TT&C) for Space Missions

Modenini

Ripani

2023

IEEE Commun. Surv. Tutorials

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This paper presents a tutorial on the Tracking, Telemetry, and Command (TT&C) for spacecraft and satellite missions. In particular, it provides a thorough summary of the design of the TT&C, starting from elementary system aspects and going down to the details of the on-board TT&C subsystem design, its units, and the physical layer. The paper is then complemented with a description of emerging TT&C techniques and technologies, the standardization framework, and with practical examples of actual spacecraft design of European space missions.The tutorial here presented is thought for professionals (also in other telecommunication engineering fields) that want to face the challenges and state-of-the-art of the TT&C, and know more about this fundamental function that allows us to daily control and monitor our spacecraft.

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Section: F Survey Of Additional Techniquesmentioning

confidence: 99%

A Tutorial on the Tracking, Telemetry, and Command (TT&C) for Space Missions

Modenini

Ripani

2023

IEEE Commun. Surv. Tutorials

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“…Then the I/Q baseband signals are obtained by mixing them with the quadrature local oscillator signal respectively, and the signal is digitized by the 12-bit Analog-to-Digital Converter (ADC) [11] . After the analog signal is converted to a digital one with the ADC, the data rate extraction process is performed by a fixed-order halfband filter and a programmable Finite Impulse Response (FIR) filter, and finally the signal data are transmitted to the baseband processor [12] .…”

Section: Introductionmentioning

confidence: 99%

Microwave Signal Replicator Design for Testing of the Multi-Channel Transcranial Magnetic Stimulator

Chen,

Zhang,

Pang

et al. 2024

Int. J. Crowd Sci.

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The multi-channel transcranial magnetic stimulator is commonly used for rehabilitation treatment of ischemic cerebrovascular disease, neurosis, and brain injury diseases in the elderly. And multiple high coherency signals are required as inputs for its test, which are with consistent frequency, adjustable amplitude, equal magnitude, and long-time phase consistency ±1°. But ordinary signal sources have only one output channel, which is far from meeting the test requirements. If the traditional power division is used for the duplication, the phase difference between the channels will be larger than ±1°. If the multi-throw Radio Frequency (RF) switch is used, it will seriously affect the phase consistency of the input signal and increase the distortion of the signal. In order to solve the above problems, the method to extend the output of the microwave signal source has been proposed in the paper by using the integrated transceiver AD9361. The proposed method can realize the duplication of the number of signal channels according to user requirements. Then a signal replicator has been designed by combining AD9361 chip and Field-Programmable Gate Array (FPGA) control module. The experimental platform has been built to test the performance of the designed device. Experimental results show that the duplicated signals are highly consistent with the source signal in the power amplitude and frequency, meanwhile the phase of the duplicated signals are all highly consistent with each other.1 Working Principle of the RF Signal Duplication Based on AD9361 and FPGA 1.1 Working principle of AD9361 transceiver AD9361 is a high-performance, highly integrated RF agile transceiver. It is a wideband chip with zero Intermediate Frequency (IF) architecture and automatic gain control, Direct Current (DC) detuning correction, quadrature correction, and digital filtering, using independent dual receiving and transmitting

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