Digital Analytical Techniques (163)
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Chapter Outline
Chapter 12 - Digital Analytical Techniques (Instrumentation for Test and Measurement)
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Fourier Without Pain
- Adding Sine Waves
- Time and Frequency Domain
- Discrete Fourier Analysis
- Fast Fourier Transform
- Phase of Frequency Domain Components
- Lowest Frequency Resolvable by the FFT
- Frequencies of all the Spectral Lines of the FFT
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Dynamic Signal Analyzer
- Spectrum Analyzers
- Analog Frequency Analyzer
- How Analyzer Presents a Single Sinusoid
- Amplitude Error from Sweeping Too Fast
- Parallel Filter Analyzer
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Digital Frequency Analyzer
- Quick Look vs. Detailed Analysis
- Random Frequency Analysis
- Statistical Precision of a Spectrum Analysis
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Aliasing
- Aliasing in the Frequency Domain
- Anti-Aliasing Filters
- Two Types of Aliasing Filters
- Analog and Digital Filtering
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Windowing
- Effect of Windowing in the Time Domain
- Leakage Reduction with Windowing
- Transient Events
- Response Window vs. Force Window
- Comparison of Weighting Functions
-
Correlation
- Auto- and Cross-spectra
- Auto Correlation of Periodic Waveforms
- Auto Correlation of a Sine Buried by Noise
- Simulated Radar Cross Correlation
- Coherence
Video Outline
Digital Analytical Techniques, Part 1 of 2
Fourier Without Pain • Adding Sine Waves • Time and Frequency Domain • Discrete Fourier Analysis • Fast Fourier Transform • Phase of Frequency Domain Components • Lowest Frequency Resolvable by the FFT • Frequencies of all the Spectral Lines of the FFT • Dynamic Signal Analyzer • Spectrum Analyzers • Analog Frequency Analyzer • How Analyzer Presents a Single Sinusoid • Amplitude Error from Sweeping Too Fast • Parallel Filter Analyzer • Digital Frequency Analyzer • Quick Look vs. Detailed Analysis • Random Frequency Analysis • Statistical Precision of a Spectrum Analysis • Aliasing • Aliasing in the Frequency Domain • Anti-Aliasing Filters • Two Types of Aliasing Filters • Analog Digital Filtering • Windowing • Effect of Windowing in the Time Domain • Leakage Reduction with Windowing • Windowing, continued • Transient Events • Response Window vs. Force Window • Comparison of Weighting Functions • Correlation • Auto- and Cross-spectra • Auto Correlation of Periodic Waveforms • Auto Correlation of a Sine Buried by Noise • Simulated Radar Cross Correlation • Coherence