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Coding for Aeronautical Telemetry

A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Information Theory, Probability and Statistics".

Deadline for manuscript submissions: 10 March 2025 | Viewed by 2681

Special Issue Editor


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Guest Editor
Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT 84602, USA
Interests: digital communications; signal processing; aeronautical mobile telemetry; software-defined radios

Special Issue Information

Dear Colleagues,

Aeronautical telemetry is a one-way air-to-ground radio link that transmits measurements made on an airborne test article to flight test engineers on the ground. The radio link is characterized by a long distance—in the order of 100 miles (161 km)—as being highly dynamic and hence having a high Doppler, and, when the elevation angle from the ground station is low, severe frequency selective multipath propagation. Error control coding has been used to improve data integrity in this non-ideal propagation environment as well as to extend the usable range between the test article and the ground station. The goals of this Special Issue are to assess the impact of the error control codes currently used in aeronautical mobile telemetry, examine potential improvements in error control coding, and to explore other forms of coding, such as physical layer security codes, space–time coding, coded modulation, etc., for potential applications in aeronautical telemetry.

Prof. Dr. Michael Rice
Guest Editor

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Keywords

  • aeronautical mobile telemetry
  • error control coding
  • forward error correcting codes
  • physical layer security codes
  • space–time coding

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Published Papers (2 papers)

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Research

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18 pages, 1263 KiB  
Article
Rate-Compatible, Bandwidth-Efficient, Low-Density Parity-Check (LDPC) Codes for Aeronautical Telemetry
by Andrew D. Cummins, David G. M. Mitchell and Erik Perrins
Entropy 2024, 26(12), 1045; https://doi.org/10.3390/e26121045 - 30 Nov 2024
Viewed by 873
Abstract
Low-density parity-check (LDPC) codes form part of the IRIG-106 standard and have been successfully deployed for the Telemetry Group version of shaped-offset quadrature phase shift keying (SOQPSK-TG) modulation. Recently, LDPC code solutions have been proposed and optimized for continuous phase modulations (CPMs), including [...] Read more.
Low-density parity-check (LDPC) codes form part of the IRIG-106 standard and have been successfully deployed for the Telemetry Group version of shaped-offset quadrature phase shift keying (SOQPSK-TG) modulation. Recently, LDPC code solutions have been proposed and optimized for continuous phase modulations (CPMs), including pulse code modulation/frequency modulation (PCM/FM) and the multi-h CPM developed by the Advanced-Range TeleMetry program (ARTM CPM), the latter of which was shown to perform around one dB from channel capacity. In this paper, we consider the effect of the random puncturing and shortening of these LDPC codes to further improve spectrum efficiency. We perform asymptotic analyses of the ARTM0 code ensembles and present numerical simulation results that affirm the robust decoding performance promised by LDPC codes designed for ARTM CPM. Full article
(This article belongs to the Special Issue Coding for Aeronautical Telemetry)
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Review

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50 pages, 3145 KiB  
Review
A History of Channel Coding in Aeronautical Mobile Telemetry and Deep-Space Telemetry
by Michael Rice
Entropy 2024, 26(8), 694; https://doi.org/10.3390/e26080694 - 16 Aug 2024
Viewed by 1381
Abstract
This paper presents a history of the development of channel codes in deep-space telemetry and aeronautical mobile telemetry. The history emphasizes “firsts” and other remarkable achievements. Because coding was used first in deep-space telemetry, the history begins with the codes used for Mariner [...] Read more.
This paper presents a history of the development of channel codes in deep-space telemetry and aeronautical mobile telemetry. The history emphasizes “firsts” and other remarkable achievements. Because coding was used first in deep-space telemetry, the history begins with the codes used for Mariner and Pioneer. History continues with the international standard for concatenated coding developed for the Voyager program and the remarkable role channel coding played in rescuing the nearly-doomed Galileo mission. The history culminates with the adoption of turbo codes and LDPC codes and the programs that relied on them. The history of coding in aeronautical mobile telemetry is characterized by a number of “near misses” as channel codes were explored, sometimes tested, and rarely adopted. Aeronautical mobile telemetry is characterized by bandwidth constraints that make use of low-rate codes and their accompanying bandwidth expansion, an unattractive option. The emergence of a family of high-rate LDPC codes coupled with a bandwidth-efficient modulation has nudged the aeronautical mobile telemetry community to adopt the codes in their standards. Full article
(This article belongs to the Special Issue Coding for Aeronautical Telemetry)
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