Spectral analysis and modulation: The DFT and FFT
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2008-02-21 |
| This article explains the Discrete Fourier Transform (DFT) and its Fast Fourier Transform (FFT) implementation |
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| Develop FFT apps on low-power microcontrollers
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2005-10-03 |
| The Fast Fourier Transform (FFT) is a mainstay of embedded systems and signal processing. Usually the domain of expensive DSP chips, this article shows how to do FFTs on simple microcontrollers |
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| Improve DSP performance with on-chip FFT
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2009-10-09 |
| This article mainly focuses on how having an on-chip filter/FFT engine can significantly help offload work from the DSP core resulting into MIPS savings, enabling more MIPS to be used to accommodate further post processing or to execute a different task |
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| Consider FFT module reuse in OFDM modulation
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2008-09-24 |
| This document discusses how to implement CP insertion and removal for OFDM modulation and demodulation. |
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| Blazing with the Goertzel algorithm technique
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2003-07-16 |
| Most engineers are familiar with the FFT and would have little trouble using a |
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| Oscilloscope simplifies vibration analysis
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2002-11-01 |
| Sigma Design claims to have found a cost-effective tool, the digitizing oscilloscope with FFT, that enables to conduct preliminary vibration analysis in emerging designs |
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| Implementing OFDM modulation for wireless communications
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2008-02-05 |
| High FFT throughput is essential in broadband systems especially when FFT is shared between multiple data paths |
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| The Goertzel Algorithm
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2002-09-02 |
| The Goertzel algorithm can perform tone detection using much less CPU horsepower than the Fast Fourier Transform, but many engineers have never heard of it. This article attempts to change that. |
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| Doing Hartley smartly
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2000-09-03 |
| Think the fast Fourier transform is fast enough? Think again. Meet the fast Hartley transform. |
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| Handling the challenges of interleaving high-speed ADCs
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2009-11-19 |
| Synchronously sampling analogue signals with time-interleaved ADCs at billions of times per second is a technical challenge. Overcome the hurdles and know the advancements in interleaving methodologies. |
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| ADSL technology explained: The Physical Layer
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2001-05-08 |
| ADSL technology explained: The Physical Layer |
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| Simplifying adaptive filter design in echo cancellers
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2003-04-01 |
| Traditionally,echocancellation |
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| Six basic audio measurements
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2007-11-14 |
| Understanding the principals of six basic audio measurement approaches will provide an excellent framework for working with faster and more informative measurement techniques. |
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| Basic audio measurement guidelines
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2008-06-16 |
| Different audio devices require various types of testing. A device and a signal path are chosen as an example for testing level, frequency response, total harmonic distortion plus noise (THD+N), phase, cross talk and SNR. |
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| Analyzing ADC noise impacts on wireless systems
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2003-09-01 |
| Noise generated from an ADC can have a big impact on channel performance, so while number of ADCs in a wireless system increase designers must effectively know what impact this noise will have |
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