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Author:
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 754
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Book Description
Author: Helen Fry
Publisher:
ISBN: 9781481020084
Category : Espionage
Languages : en
Pages : 290
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Book Description
As seen on pbs and Channel 4 documentary "Spying on Hitler's Army"...This is the story of the German émigrés who fled Hitler's regime and became secret listeners for British Intelligence during the Second World War. Behind the walls of the M Room (M for 'miked') they bugged the conversations of over 10,000 German PoWs, including 59 German Generals at Trent Park in North London. Providing a detailed, oft humorous, insight into life of the Generals in captivity, the book shows the farcical 'stage-set' in which they found themselves. But against this backdrop, the secret listeners eavesdropped on admission of war crimes and terrible atrocities against Russians, Poles and Jews; as well as details of an SS mutiny in a concentration camp in 1936, and Hitler's human 'stud farms'. This story places firmly on record just how much British and American Intelligence knew about Hitler's annihilation programme and how early. Why at the end of the war were these files not released for the war crimes trials to bring the perperators to justice? Was this one of the darkest secrets of the war? These transcripts, and thousands of others, of some of the most important Nazi secrets remained classified until 1999. During their clandestine work the secret listeners did not set eyes on a single German PoW, yet their work and the intelligence they gained was as significant for winning the war as Bletchley Park and cracking the Enigma Code. For over sixty years the listeners never spoke about their work, not even to their families. Many went to their grave bearing the secrets of the nation which had saved them from certain death.
Author:
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 754
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Book Description
Author: Helen Fry
Publisher: Yale University Press
ISBN: 0300238606
Category : History
Languages : en
Pages : 351
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Book Description
A history of the elaborate and brilliantly sustained World War II intelligence operation by which Hitler's generals were tricked into giving away vital Nazi secrets At the outbreak of World War II, MI6 spymaster Thomas Kendrick arrived at the Tower of London to set up a top secret operation: German prisoners' cells were to be bugged and listeners installed behind the walls to record and transcribe their private conversations. This mission proved so effective that it would go on to be set up at three further sites--and provide the Allies with crucial insight into new technology being developed by the Nazis. In this astonishing history, Helen Fry uncovers the inner workings of the bugging operation. On arrival at stately-homes-turned-prisons like Trent Park, high-ranking German generals and commanders were given a "phony" interrogation, then treated as "guests," wined and dined at exclusive clubs, and encouraged to talk. And so it was that the Allies got access to some of Hitler's most closely guarded secrets--and from those most entrusted to protect them.
Author: Disha Experts
Publisher: Disha Publications
ISBN:
Category :
Languages : en
Pages : 36
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Book Description
Author: Wan Lei
Publisher: Springer Nature
ISBN: 3030222365
Category : Technology & Engineering
Languages : en
Pages : 408
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Book Description
This book presents a detailed pedagogical description of the 5G commercial wireless communication system design, from an end to end perspective. It compares and contrasts NR with LTE, and gives a concise and highly accessible description of the key technologies in the 5G physical layer, radio access network layer protocols and procedures. This book also illustrates how the 5G core and EPC is integrated into the radio access network, how virtualization and edge computer fundamentally change the way users interact with the network, as well as 5G spectrum issues. This book is structured into six chapters. The first chapter reviews the use cases, requirements, and standardization organization and activities for 5G. These are 5G requirements and not NR specifically, as technology that meets the requirements, may be submitted to the ITU as 5G technology. This includes a set of Radio Access Technologies (RATs), consisting of NR and LTE; with each RAT meeting different aspects of the requirements. The second chapter describes the air interface of NR and LTE side by side. The basic aspects of LTE that NR builds upon are first described, followed by sections on the NR specific technologies, such as carrier/channel, spectrum/duplexing (including SUL), LTE/NR co-existence and new physical layer technologies (including waveform, Polar/LDPC codes, MIMO, and URLLC/mMTC). In all cases the enhancements made relative to LTE are made apparent. The third chapter contains descriptions of NR procedures (IAM/Beam Management/Power control/HARQ), protocols (CP/UP/mobility, including grant-free), and RAN architecture. The fourth chapter includes a detailed discussion related to end-to-end system architecture, and the 5G Core (5GC), network slicing, service continuity, relation to EPC, network virtualization, and edge computing. The fifth and major chapter describes the ITU submission and how NR and LTE meet the 5G requirements in significant detail, from the rapporteur responsible for leading the preparation and evaluation, as well as some field trial results. Engineers, computer scientists and professionals with a passing knowledge of 4G LTE and a comprehensive understanding of the end to end 5G commercial wireless system will find this book to be a valuable asset. Advanced-level students and researchers studying and working in communication engineering, who want to gain an understanding of the 5G system (as well as methodologies to evaluate features and technologies intended to supplement 5G) will also find this book to be a valuable resource.
Author:
Publisher:
ISBN:
Category : Communication and traffic
Languages : en
Pages : 922
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Book Description
Author: United States National Museum
Publisher:
ISBN:
Category :
Languages : en
Pages : 474
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Book Description
Author: Hermann Carl George Brandt
Publisher:
ISBN:
Category : English language
Languages : en
Pages : 984
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Book Description
Author:
Publisher:
ISBN:
Category : Energy policy
Languages : en
Pages : 12
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Book Description
Author: United States. Congress
Publisher:
ISBN:
Category : Law
Languages : en
Pages : 1202
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Book Description
