Institution: Rice University

Keywords: array, beamformer, beamforming, microphone arrays, processing, signal, ULA, uniform linear array

Summary: This is our ELEC 301 Project for the Fall 2004 semester. We implemented a uniform linear array of six microphones. We then sampled the data and analyzed it in LabVIEW in order to to listen in one direction. We also explored listening for a particular frequency and its direction.

Keywords: Computer engineering, computers, Electrical engineering, engineering, MATLAB

Institution: The Ohio State University

Keywords: AM,, BPSK,, complex-baseband equivalent,, constellation diagram,, decision regions,, demodulation,, discrete-time models,, erfc,, eye diagram,, FM,, fractional sampling,, Gray coding, matched filtering,, modulation,, multipath propagation,, Nyquist criterion,, PAM,, power spectrum,, PSK,, pulse shaping,, Q function,, QAM,, QPSK,, raised-cosine pulse,, sinc reconstruction,, square-root raised-cosine pulse,, symbol error rate,, VSB,

Summary: These modules comprise a one-quarter introductory course on analog and digital communication, with an emphasis on digital communication, and include many Matlab examples. The contents are summarized as follows. First, a review of preliminary material is given (including the Fourier transform, Dirac delta, LTI systems, and Matlab filter design ... are derived. [Expand Summary] These modules comprise a one-quarter introductory course on analog and digital communication, with an emphasis on digital communication, and include many Matlab examples. The contents are summarized as follows. First, a review of preliminary material is given (including the Fourier transform, Dirac delta, LTI systems, and Matlab filter design). Next, the communications channel, describing the effects of signal propagation, is described. Several forms of analog communication are then detailed: AM, QAM, VSB, FM. An introduction to power spectra is then presented, followed by the complex-baseband equivalent channel respresentation, for use in the sequel. Digital communication is described next, starting with Nyquist pulse-shaping, matched filtering, and discrete-time implementation/modeling. After eye diagrams and constellation diagrams are detailed, expressions for symbol error rate (using the Q function) are derived. [Collapse Summary]

Institution: The Ohio State University

Keywords: adaptive quantization, aliasing cancellation, bit allocation, companding, cosine matrix transformation, cosine-modulated filterbanks, differential pulse code modulation (DPCM), discrete cosine transform, discrete Fourier transform, downsampling, entropy coding, filterbanks, Huffman coding, Karhunen-Loeve transform, lapped transform, linear prediction, Lloyd-Max quantization, lossless predictive encoding, modified DCT, modulation, MPEG, polyphase filters, polyphase quadrature filterbank (PQF), prediction error, pulse code modulation (PCM), quantization, quantized predictive encoding, rate-distortion theory, spectral flatness measure, sub-band coding, transform coding, uniform quantization, upsampling, variable length coding

Summary: These modules comprise a one-semester course on source coding, with an emphasis on audio coding. The course covers quantization, differential pulse code modulation (DPCM), transform coding, and sub-band coding. The quantization material includes memoryless scalar quantization (uniform and Lloyd-Max), entropy coding, and adaptive quantization. The DPCM section ... audio processing. [Expand Summary] These modules comprise a one-semester course on source coding, with an emphasis on audio coding. The course covers quantization, differential pulse code modulation (DPCM), transform coding, and sub-band coding. The quantization material includes memoryless scalar quantization (uniform and Lloyd-Max), entropy coding, and adaptive quantization. The DPCM section describes PCM, predictive encoding, DPCM, and the design of prediction coefficients. Furthermore, prediction error is analyzed and compared to rate-distortion bounds. The transform coding section includes material on optimal bit allocation, gain over PCM, the Karhunen-Loeve transform, performance analysis, and sub-optimum orthogonal transforms. Finally, the section on sub-band coding includes introductory material on multirate signal processing, uniformly modulated filterbanks, cosine-modulated filterbanks, and lapped transforms, with an emphasis on MPEG audio processing. [Collapse Summary]

Keywords: discipline, problem solving

Summary: This book presents a problem-solving approach to school discipline.