he developed technology discussed in this book, is applicable for wide range of inertial systems. We think we can claim to have a new line of integrated inertial products opened. The book presents the technologies of inertial sensor data processing and the new approaches in the field of INS/GPS integration. It introduces the fundamentals of inertial technology and follows up with the algorithmic implementations. It is important to outline, that all described methods and algorithms are implemented in the real products developed by TeKnol Ltd. The methodology of the book materials has evolved from lecture notes of a postgraduate course on inertial navigation given by the author at the University of Calgary, Department of Geomatics Engineering. The book content is dedicated to the people involved in that researchers, engineers and students.