ES Week Emphasis on Component Based Design
ES Week in Salzburg brought a strong theme into focus, component based design and automation for embedded and MPSoC systems. Praveen Raghavan highlights a few standout keynotes and industry talks, from SDR evolution at Infineon to Tensilica’s push toward instruction set extension and MPSoC assembly. He also notes Toshiba’s new VLIW vector processor for image and video front ends, along with the compiler challenges that come with it.
Software Defined Radio at SAMOS
At SAMOS, the SDR track drew a strong academic crowd, with groups from UMich, Wisconsin-Madison, Linköping, IMEC, and others presenting their latest ideas. Praveen Raghavan also notes that IMEC finally made its SyncPro architecture public, a vector synchronization processor design. The post gives a quick snapshot of where software defined radio research was active, and which major industry names were noticeably absent.
Components in Audio recognition - Part 1
This post introduces the core components of an audio recognition system, framed against how the human auditory system naturally familiarizes and retrieves tunes. Prabindh Sundareson outlines the three building blocks: an archive store, an analysis and fingerprinting engine that groups tracks, and a front-end that accepts queries and places samples into groups. He previews upcoming posts that will dig into implementations and tradeoffs.
ICASSP 2011 conference lectures online (for free)
For the first time, the oral sessions of ICASSP 2011 were recorded and posted online for free, giving engineers worldwide easy access to the conference. The talks span speech and communication signal processing, plus eclectic topics like bio-inspired methods, where Prof. Sayed uses a distributed LMS model to reproduce group predator and prey behavior. Expect some theoretical material, but many presentations are practical and inspiring for DSP practitioners.
Software Defined Radio at SAMOS
At SAMOS, the SDR track drew a strong academic crowd, with groups from UMich, Wisconsin-Madison, Linköping, IMEC, and others presenting their latest ideas. Praveen Raghavan also notes that IMEC finally made its SyncPro architecture public, a vector synchronization processor design. The post gives a quick snapshot of where software defined radio research was active, and which major industry names were noticeably absent.
The correct answer to the quiz of @apolin
A compact Simulink model explains why certain DFT rows behave like negative-frequency bandpass filters, using dftmtx(8) rows as impulse responses. The demo shows that a 2 kHz tone with phase 0 or pi produces identical real parts and opposite imaginary parts, making a negative-frequency interpretation unnecessary. It also illustrates how a 6 kHz tone under 8 kHz sampling aliases to 2 kHz with opposite phase, visible in PSD plots.
