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Could someone who understands this please provide a more detailed explanation?<br />
Perhaps a diagram - the sine wave diagram is very nice but I am having trouble relating this to LPCM... <!-- Template:Unsigned IP --><small class="autosigned">— Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/207.81.124.137|207.81.124.137]] ([[User talk:207.81.124.137#top|talk]]) 02:45, 12 January 2022 (UTC)</small> <!--Autosigned by SineBot-->
== Proposed Addition: Ronald Hugh Barker’s Contributions to PCM Applications ==
I’d like to propose the following brief paragraph for inclusion in the History section of this article. It introduces Ronald Hugh Barker, a British physicist and engineer, who made early practical contributions to the use of pulse-code modulation (PCM) during the post-war period, particularly within military and radar systems. He is also credited with the invention of the Barker code in 1953, which remains widely used.
Proposed Text:
[[User:Barkercoder|Windswept]] ([[User talk:Barkercoder|talk]]) 14:48, 21 April 2025 (UTC)
Ronald Hugh Barker, while less publicly known than contemporaries such as [[Alan Turing]], [[Tommy Flowers]], or [[Alec Reeves]], played a pioneering role in the early development of British digital communications. Working at the [[Signals Research and Development Establishment]] (SRDE), he was instrumental in the practical application of pulse-code modulation, particularly in telemetry for guided weapons and early digital radar systems. He is best known for the invention of the [[Barker code]] in 1953, a binary sequence that remains in use for synchronisation in radar, telemetry, and digital communication systems.{{cite web |title=Ronald Hugh Barker (1915–2015) |url=https://www.theiet.org/membership/library-and-archives/the-iet-archives/biographies/ronald-hugh-barker-1915-2015/ |website=The IET |access-date=2025-04-21}} Barker’s work also included early digital techniques that anticipated features of modern air traffic control, speech encryption systems, and rotary encoders.{{cite web |last=IET Archives |title=The Story of Roy Barker: A Physicist with 70 Years of Membership |url=https://ietarchivesblog.org/2024/05/08/the-story-of-roy-barker-a-physicist-with-70-years-of-membership-at-the-iet/ |website=IET Archives Blog |date=2024-05-08 |access-date=2025-04-21}}
This aims to highlight lesser-known figures in PCM development and is fully referenced to reliable sources (IET). Feedback welcome.
Thanks! [[User:Barkercoder|Windswept]] ([[User talk:Barkercoder|talk]]) 14:48, 21 April 2025 (UTC)
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