The Great Flap of 1942 is a narrative history of a neglected and scarcely known period—between December 1941 and mid-1942—when all of India was caught in a state of panic. This was largely a result of the British administration’s mistaken belief that Japan was on the verge of launching a full-fledged invasion. It was a time when the Raj became unduly alarmed, when the tongue of rumour wagged wildly about Japanese prowess and British weakness and when there was a huge and largely unmapped exodus (of Indians and Europeans) from both sides of the coastline to ‘safer’ inland regions. This book demonstrates, quite astonishingly, that the Raj cynically encouraged the exodus and contributed to the repeated cycles of rumour, panic and flight. It also reveals how the shadow of the Japanese threat influenced the course of nationalist politics, altered British attitudes towards India and charted the course towards Independence. The Great Flap of 1942—the title refers to an expression used by British bureaucrats in India—traces a broad narrative arc, starting with the Japanese attacks in South-East Asia. The assault on Malaya, the conquest of Singapore, the bombing and eventual occupation of Burma, and the Japanese Navy’s foray into the Indian Ocean are examined in the light of the tremendous impact they had on India.
Feedback-Based Orthogonal Digital Filters: Theory, Applications, and Implementation develops the theory of a feedback-based orthogonal digital filter and examines several applications where the filter topology leads to a simple and efficient solution. The development of the filter structure is linked to concepts in observer theory. Several signal processing problems can be represented as estimation problems, where a parametric representation of the input is used, to try and replicate it locally. This estimation problem can be solved using an identity observer, and the filter topology falls in this framework. Hence the filter topology represents a universal building block that can find application in several problems, such as spectral estimation, time-recursive computation of transforms, etc. Further, because of the orthogonality constraints satisfied by the structure, it also represents a robust solution under finite precision conditions. The book also presents the observer-based viewpoint of several signal processing problems, and shows that problems that are typically treated independently in the literature are in fact linked and can be cast in a single unified framework. In addition to examining the theoretical issues, the book describes practical issues related to a hardware implementation of the building block, in both the digital and analog domain. On the digital side, issues relating to implementation using semi-custom chips (FPGA's), and ASIC design are examined. On the analog side, the design and testing of a fabricated chip, that functions as a multi-sinusoidal phase-locked-loop, are described. Feedback-Based Orthogonal Digital Filters serves as an excellent reference. May be used as a text for advanced courses on the subject.
It also reveals how the shadow of the Japanese threat influenced the course of nationalist politics, altered British attitudes towards India and charted the course towards Independence.
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