Conference Session

Signal Processing Education

Collection

2009 Annual Conference & Exposition

Authors

Thad Welch, Boise State University; Cameron Wright, University of Wyoming; Michael Morrow, University of Wisconsin, Madison; Travis Kent, Boise State University

Tagged Divisions

Computers in Education

combination with a digital down converter (DDC) based data recorder to capture and record real world radio signals. The resulting in-phase (I) and quadrature (Q) data files are then imported into M ATLAB for processing. This batch processing of real world radio signals allows for a tremendous amount of classroom flexibility in the discussion of software defined radio topics.1 IntroductionThere is a great deal of interest in the DSP algorithms necessary to demodulate communicationssignals. While a number of existing courses cover these topics, the use of real world communi-cations signals to develop and test these algorithms can be problematic. For many universities,the largest challenge in working with real world signals is the

Conference Session

Programming for Engineering Students II

Collection

2009 Annual Conference & Exposition

Authors

ansgar neuenhofer, California State Polytechnic University, San Luis Obispo

Tagged Divisions

Computers in Education

and free combined)dof(fixdof)=1;free = find(dof==0);We reduce the structure force vector F and the structure stiffness matrix K to form the correspon-ding quantities Ffree and KFree , solve the set of linear equations for the vector q free of structure dis-placements and finally add the prescribed zero displacements to the solution vector using thefollowing statements.%initialize displacement vectorq = zeros(dim,1);%reduce stiffness matrix (eliminate rows and columns representing fixed dofs)Kfree = K(free,free);%reduce force vectorFfree = F(free);%solve equationsqfree = Kfree \ Ffree;%include fixed degrees of freedom in displacement vectorq(free) = qfree

Conference Session

Signal Processing Education

Collection

2009 Annual Conference & Exposition

Authors

William Birmingham, Grove City College

Tagged Divisions

Computers in Education

frontend that contains a “down-converter,” which converts the RFsignals at the received frequency into two parts: the I signal (in-phase) and Q (quadrature) signal,which is 90 degrees out of phase (relative to I). To perform down-conversion, we use a Tayloedetector 6 . The detector is a simple, inexpensive circuit that does a complete quadrature down-conversion. The I and Q signals feed directly into the soundcard of the PC, where they areconverted from analog to digital signals using the soundcard’s A/D converter.Once converted by the soundcard, I and Q signals are demodulated. This process consists of thefollowing basic steps for receiving7-10. 1. Time-domain shift: while I and Q are in the time domain, their (center) frequencies are

Conference Session

Computational Tools and Simulation II

Collection

2009 Annual Conference & Exposition

Authors

Anatoliy Protasov, National Technical University of Ukraine “KPI”

Tagged Divisions

Computers in Education

B.ConclusionFEMLAB software package can be used for simulation of the TNDT process. It givesopportunity to investigate a potential of this testing method. The proposed laboratory traininghelps students to understand physical processes occurred in a solid body under the action oftemperature. They can observe processes which are invisible for a human eye and betterunderstand thermal wave propagation in the testing object. It improves the students’ progressin studies.Appendix A: Instructions for laboratory work accomplishmentInstructor specifies materials of a testing object (conductor) and a defect (dielectric), andboundary conditions (temperature T, heat flow Q, convection heat transfer coefficient h,ambient temperature Tamb).Tasks for students: 1. Use a

Conference Session

Robots in Education

Collection

2009 Annual Conference & Exposition

Authors

David Ahlgren, Trinity College; Igor Verner, Technion-Israel Institute of Technology

Tagged Divisions

Computers in Education

on implementing a subset of JAUS on the Q robot. Attendees completed an exercise in which they developed a short LabView code that enabled JAUS communication between two computers. The RST successfully entered the JAUS performance competition event at the IGVC, winning a $500 prize.• The PCB design workshop focused on teaching attendees how to use the Mentor Graphics PADS package. Each attendee designed a simple printed circuit board, going through the schematic capture and layout phases of the development.• The Laser Rangefinding group focused its efforts on understanding, demonstrating, and preparing a Sick Model LMS-291 laser rangefinder. Their work included writing LabView drivers to handle high speed serial communication between

Conference Session

Computational Tools and Simulation I

Collection

2009 Annual Conference & Exposition

Authors

Nabil Lehlou, University of Arkansas; Nebil Buyurgan, University of Arkansas; Justin Chimka, University of Arkansas

Tagged Divisions

Computers in Education

., “Animations and Intelligent Tutoring Systems for Programmable Logic Controller Education.” International Journal of Engineering Education, 19(2), p. 282-296 (2003). Page 14.209.86. Huang, S., Su, Q., Samant, N., and Khan, I., “Development of a Web-Based Integrated Manufacturing Laboratory,” Computer Applications in Engineering Education, 9(4), p. 228-237 (2001).7. Jiang, H., Kurama, Y., and Fanella, D., “WWW-Based Virtual Laboratories for Reinforced Concrete Education,” Computer Applications in Engineering Education, 10(4), p. 167-181 (2002).8. Kuester, F. and Hutchinson, T., “A Virtualized Laboratory for Earthquake