Development of a low bit-rate voice over IP application is described. A speech coding algorithm is constructed and implemented on a digital signal processor (DSP). The algorithm is based on a sub-band mixed excitation LPC vocoder structure and operates at a rate of 2000 bits per second. Implementation is done on two TMS320C6701 floating point DSP’s each connected to a PC. On the PC, a graphical...

An efficiency-enhanced fully integrated power amplifier (PA) for wireless local area networks (WLANs) was implemented based on the GaAs heterojunction bipolar transistor (HBT) process. A harmonic tuning network that can absorb parasitic inductance of bonding wires is proposed, which reduces chip significantly. The provides nearly optimum fundamental and second impedances from 5.0 to 5.5GHz. Add...

Research Question: The aim of this paper is to provide a state-of-science review and offer critical analysis contemporary schedule related Earned Value Management (EVM) approaches. Motivation: Since the introduction EVM as tool for project control in late 1960s, academics have tried improve its best application. Although method significantly contributed efficient cost management, application ma...

This paper presents the use of inverse confidential technique on bilateral function with territorial intensity-based optical flow to prove effectiveness in noise resistance environment. In general, image’s motion vector is coded by called where sequences image are used determine vector. But, accuracy rate reduced when source interfered noises. work proved that can increase percentage determinat...

earned value management (evm) is the process of integrating the time and cost management within the framework of project scope management. the earned value has provided methods for predicting the cost for projects. in large part, these methods have not been improved upon since their beginnings and remain unsubstantiated as to accuracy. in this direction, several mathematics formulas have been d...