The proposed design of HDB3 decoding system using FPGA implementation offers an efficient and unfailing decoding at receiving end by sustaining clock data recovery using Direct Digital Synthesis (DDS). The system captures E1/T1 HDB3 encoded tertiary level stream at input, converts it into binary level symbols, FPGA IO reconcilable, and decode and transforms it into synchronized NRZ output. The ...

There are several compression methods for phase to amplitude converter for sine function. In this paper, the linear and parabolic approximation of equi-section division utilizing the symmetry property and amplitude approximation of a sinusoidal waveform for direct digital frequency synthesizer (DDS) and also for other waveform applications, e.g. function generators and telecommunication devices...

background and aims. the aim of the present study was to compare the effect of application of an image processing mode of a colorizer on the efficacy of the detection of interproximal carious lesions viewed in direct digital radiography. materials and methods. a total of 102 proximal surfaces of extracted human premolars on direct digital images were evaluated by three observers with and withou...

Personal Communications Services (PCS) require low-power radio technologies. One such transceiver architecture employing frequency-hopped spread spectrum techniques is described. Low power and robustness are two keys to a wireless personal communications device. A frequency-hopped code-division multiple access (CDMA) scheme is chosen over other multiple access methods because it provides an inh...

This paper describes the concept of the integral music controller (IMC), a controller that combines gestural interface with direct emotional control of a digital musical instrument. This new controller enables the performer to move smoothly between direct physical interaction with an acoustical musical instrument, and gestural/emotional control of the instrument’s physical model. The use of phy...

110 SEPTEMBER 2004 n Part 1 of this article (in the July 2004 issue of IEEE Signal Processing Magazine), we presented an overview of the basics of direct digital frequency synthesis (DDS), simple formulas to compute bounds of the signal characteristics, and a scheme to improve the DDS spurious free dynamic range (SFDR). In this Part 2, we discuss additional tricks used to optimize DDS performan...