Engineering Commons^™

General-Purpose Digital Filter Platform, Michael Cheng

Electrical Engineering

This senior project provides a platform for high-speed, general-purpose digital filter implementation. EE 459 currently implements digital filters using reprogrammable digital signal processor boards. These aging digital signal processors serially calculate each difference equation term. Operating at 1 Mega-sample per second, the new general-purpose platform simultaneously processes at least ten digital filtering difference equation coefficients. The platform also features an audio jack input and BNC connectors for viewing input and output signals. The filter digitizes single channel audio signals at 44.1 kHz sampling rate with 16-bit precision or 1 MHz sampling at 8-bit precision. The new reprogrammable platform includes a …

Fpga Based Bitcoin Mining, Philip Dotemoto

Electrical Engineering

This project attempts to implement an open source FPGA based Bitcoin miner on an Altera DE2-115 development board. Bitcoin is an experimental peer-to-peer digital currency based on public key cryptography. The advantages of Bitcoins are that they can be transferred between any two people anywhere in the world, and they do not have the same fees and lack of control associated with traditional methods of currency transfers. The first part of this project focuses on detailing how the Bitcoin network and open source miner work. The second part of the project attempts to improve the performance of the open source …

Digital Graphic Equalizer Implemented Using An Fpga, Anthony Giardina

Electrical Engineering

A graphic equalizer is a device that adjusts the tonal quality of an audio signal. When sound is converted from a digital format to analog sound waves, there are amplification and transducing steps in-between the two formats. Common devices to perform these tasks are speakers, amplifiers, DACs, etc. Many of these devices exhibit a non-uniform frequency response over the range of human hearing. Thus, it is possible that certain frequency ranges of the audio signal will be amplified and others will be attenuated. To counteract this, an audio equalizer can be used to boost and attenuate certain frequency ranges within …

Global Positioning System, Vladimir Villalba

Electrical Engineering

The Global Positioning System (GPS) is a navigation network consisting of 24 satellites in orbit around the Earth. This satellite system provides the accurate position of an individual in all weather conditions at all times around the world. Individuals can use GPS receivers to locate where they are, pinpoint where they want to go with any form of transportation.

The senior project embarks in a path to understand the workings of the GPS satellite system. To accomplish this task, the concepts learned in Electrical Engineering will be implemented. This report encompasses the design process and steps taken in prototyping a …