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This paper presents the impact of process faults - such as parameter variations and process variations - on specific parameters of a mixer - like linearity (1 dB CP, IIP3), noise figure, voltage conversion gain, voltage output signal. A review of mathematical types that shows the relations between specifications and parameters of the mixer is the tool to explain the behavior of the circuit under the...
In this paper a new author’s productivity index is introduced, namely the golden productivity index. The proposed index measures the productivity of an individual researcher evaluating the number of papers as well as the rank of co-authorship. It provides an efficient method to measure the author’s contribution in articles writing, compared to other ordinary methods. It gives emphasis to the first...
Algebraic and recursive methods for computing the extreme solutions of the matrix equations X + A*X-1A = Q and X - A*X-1A = Q are presented in this paper. The proposed algorithms are based on the solution of the corresponding discrete time Riccati equations.
A method to implement the optimal distributed Kalman and Lainiotis filters is proposed. The method is based on the a-priori determination of the optimal uniform distribution of the measurements into parallel processors, in the sense of minimizing the computation time. The resulting optimal Kalman and Lainiotis filters present high parallelism speedup. This result is very important due to the fact...
A Manchester code generator designed at transistor level with NMOS switches is presented. This generator uses 26 transistors and has the same complexity as a standard D flip-flop. It is intended to be used in a complex optical communication system. The main benefit of this design is the use of a clock signal running at the same frequency as the data. Output changes on the rising edge and falling edge...
Generalized cylinders (GCs) have been proposed in computer vision for object modeling in two dimensional images. However approaches so far have not investigated closed form solutions, based on a formal generic definition that covers every possible family of surfaces. In this work we derive the parametric definition of the torus-like surface that is generated when moving a planar closed curve along...
A real time image based system is presented that is able to measure eye movement related quantities at high frame rate. The system's hardware component allows for high frame rate image acquisition under near infrared constant lighting conditions, whereas the software component is capable of performing real time image processing to determine the values of the required eye-related parameters. The measured...
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