Signals
In signal processing, a signal is a function that conveys information about a phenomenon. In electronics and telecommunications, it refers to any time varying voltage, current or electromagnetic wave that carries information. A signal may also be defined as an observable change in a quality such as quantity.Any quality, such as physical quantity that exhibits variation in space or time can be used as a signal to share messages between observers. According to the IEEE Transactions on Signal Processing, a signal can be audio, video, speech, image, sonar and radar-related and so on. In another effort to define signal, anything …
WikipediaPublications
11 May 2022 English
Secret Files from World Wars to Cold War provides access to British government secret intelligence and foreign policy files from 1873 to 1953, with the majority of files dating from …
1936-1952 ● HW 1: Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages … German, Japanese, Italian, and other nation’s signals, that were intercepted, deciphered, and translated … Records ● Maps ● Meeting Minutes ● Memoranda ● Signals intelligence reports Twentieth century conflicts … Propaganda, Censorship, and Psychological Warfare ● Signals Intelligence and Code-breaking ● Weapons Technology …
11 May 2022 English
Summary of the editorial selection criteria, and the metadata elements provided.
1873-1951 - HW 1: Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages … s-gb%3Ahw-1-government-code-and-cypher-school-signals-intelligence-passed-to-the-prime-minister-mess … Propaganda, Censorship and Psychological Warfare ● Signals Intelligence and Code-breaking ● Weapons Technology …
The National Archives · 1 January 1982 English
Her Royal Highness Princess Anne to the Royal Signals in Berlin. Finally the very successful visit … private visit by flRH Princess Anne to the Royal Signals in Berlin. Finally the very successful visit by … visits Berlin as Colonel-in-Chief, Royal Corps of Signals. 29-30 Visit to Berlin of Secretary of State … visits Berlin as Colonel-in-Chief, Royal Corps of Signals. 29-30 Visit to Berlin of Secretary of State …
The National Archives · 1 January 1982 English
Representatives on 27 October. Despite pessimistic signals from various members of the State Department, Mr … Representatives on 27 October. Despite pessimistic signals from various members of the State Department, … Representatives on 27 October. Despite pessimistic signals from various members of the State Department, …
The National Archives · 1 January 1982 English
those in the Soviet Union whom we intend our signals to reach; in any event we \ should not be alone …
The National Archives · 1 January 1982 English
C 0 N F I D E M T I A L I REPLY REQUIRED PD SIGNALS AND CORRESPONDENCE SHOULD QUOTE RED NO I 301522 …
The National Archives · 1 January 1982 English
difficult to explain why Pakistan was getting so many signals that the Soviet Union was prepared to negotiate … KHAN FOUND IF DIFFICULT TO RECONCILE SOVIET SIGNALS TO THE PAKISTANIS THAT THEY WISHED TO NEGOTIATE …
The National Archives · 1 January 1982 Russian
A file containing documents relating to Jewish emigration from the Soviet Union. Subjects covered in the file include a decline in the rate of Jewish emigration from 1979 onwards, demonstrated …
and / would simply seem to show how confusing signals can be. 3. Of other groups the Armenians are …
The National Archives · 1 January 1982 English
work here2 Secondly, there is the question of signals to the Polish authorities in order to deter them …
The National Archives · 1 January 1982 English
AMERICANS I SHOULD EXPECT T H E R E T O BE PUBLIC SIGNALS F I R S T . THE V I S I T OF SAUD TO MOSCOW IS … AMERICANS I SHOULD EXPECT THERE TO BE PUBLIC SIGNALS F I R S T . THE V I S I T OF SAUD TO MOSCOW IS …
