EDN

Analyze signals octave by octave

Power-spectral plots generated by frequency sweeps or fast Fourier transforms (FFTs) can show you a signal’s frequency content, but sometimes an FFT provides more detail than you need. If you design ...
Electronic Design

Use Noise Spectral Density to Evaluate ADCs in “Software-Defined” Systems

The expanded availability of high-speed and very-high-speed ADCs and digital processing is making oversampling a practical architectural approach for broadband and RF systems. Semiconductor scaling ...
EDN

Frequency domain tutorial, part 2: complex signals and spectral diagrams

Figure 4. A snapshot, in time, of two complex numbers whose exponents, and thus their phase angles, change with time. The notion of negative frequency is often troubling to engineers who've spent so ...
AZOM

ProMetric® I-SC: Integrated Imaging Colorimeter and Spectrometer Solution

Let us help you with your inquiries, brochures and pricing requirements Request A Quote Download PDF Copy Request A Quote Download PDF Copy ProMetric I-SC Solution ...
Nature

Classification of malignant and benign tumors of the lung by infrared spectral histopathology (SHP)

This paper introduces optical techniques developed during the past 15 years that represent novel approaches and paradigms for the diagnosis of cells and tissues, and are referred to as ‘spectral ...