A new active feedback network is proposed for reducing intermodulation distortion (IMD). It is based on using the existing second harmonic zone (SHZ) distortion energy generated by the amplifier to predistort the input signals optimally to obtain a linear output. The technique is analyzed theoretically and practical results demonstrate the linearization performance. The measured two-tone test s...

Abstract Because linear programming algorithms are so efficient and in widespread use, together with the limitations of non-linear optimization solvers applied to large models, modelers faced wanting solve very models often attempt linearize terms their models. This chapter introduces various approaches for accomplishing this, using binary (0, 1) variables.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii CHAPTER 1. INTRODUCTIOIN . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 Robust Feedback Linearization . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 Application to Hydraulic System . . . . . . . . . . . . . . . . . . . . . . 5...

The past two years has seen the introduction of high quality linear fiberoptic transmitter into the CATV trunk plant. These lasers to date have been limited to 1.3 um. With the rapid maturity of optical fiber amplifiers (EDFA) which operates at 1.5 urn window, linear source operation at 1.5 urn are becoming increasingly important. This presentation will focus primarily on the use of external mo...

A dynamic model for the longitudinal axis of a conventional takeoff and landing (CTOL) aircraft is presented. Non-minimum phase characteristics in this model result from the fact that the process of generating an upward pitch moment produces a small downward force, causing the aircraft to lose altitude. The model is not full state linearizable and the internal dynamics which remain after input-...

The standard methodology handling nonlinear PDE’s involves the two steps: numerical discretization to get a set of nonlinear algebraic equations, and then the application of the Newton iterative linearization technique or its variants to solve the nonlinear algebraic systems. Here we present an alternative strategy called direct linearization method (DLM). The DLM discretization algebraic equat...

The linearization approach is used in this contribution to acquire the answers variable frequency oscillator equation as well modified Ivey's equation. Differential forms (DF) and generalized Sundman transformation (GST) are two techniques that considered. It found cannot be linearized using differential forms, while for a can. However, GST, can linearized.

Frequency translation which converts the original signal to a much lower baseband frequency signal is a vital role in the RF receiver design. In this work, a high linear down-conversion Gilbert cell mixer at 100MHz is designed using TSMC 0.18μm RF CMOS process. Linearity is an important performance measure in RF circuits particularly in mixer design. In this paper, the two types of linearizatio...

This thesis develops a hybrid decentralized formation control framework to coordinate multiple mobile robots with nonholonomic constraints. The proposed approach deploys a control theoretic bottom-up approach where, some low level behavior based controllers are coordinated by a discrete event system with supervisory control. The robots are required to navigate in an unstructured environment wit...