Latest Spectral Analysis Articles and Videos

Computing a discrete Fourier transform can help you to analyze the ways in which RF modulation affects the spectrum of a…

Computing a discrete Fourier transform can help you to analyze the ways in which RF modulation affects the spectrum of a carrier signal.

Scilab’s FFT functionality can help you understand the frequency-domain effects of RF modulation techniques.

Scilab’s FFT functionality can help you understand the frequency-domain effects of RF modulation techniques.

In this article we’ll work with sinusoidal signals in the frequency domain using Scilab’s fast Fourier transform…

In this article we’ll work with sinusoidal signals in the frequency domain using Scilab’s fast Fourier transform (FFT) functionality.

This 12-part article series focuses on the impact of noise in delta-sigma ADCs. Part 7 shows how to analyze different…

This 12-part article series focuses on the impact of noise in delta-sigma ADCs. Part 7 shows how to analyze different amplifiers' effect on the noise of the same ADC.

This article discusses digital down-conversion which is a digital-signal-processing technique widely used in digital…

This article discusses digital down-conversion which is a digital-signal-processing technique widely used in digital radio receivers.

This article, part of AAC’s Analog Circuit Collection, presents a circuit that is a good choice when you need to remove…

This article, part of AAC’s Analog Circuit Collection, presents a circuit that is a good choice when you need to remove high-frequency noise from a digital signal.

In part 2 of this series, I'll continue the fundamental ADC noise discussion by covering how to measure ADC noise, noise…

In part 2 of this series, I'll continue the fundamental ADC noise discussion by covering how to measure ADC noise, noise specifications in ADC data sheets, and absolute versus relative noise parameters.

In part 2 of this article, we will focus on key specifications and features in the context of wearable devices, condition…

In part 2 of this article, we will focus on key specifications and features in the context of wearable devices, condition monitoring, and IoT applications.

In this article, we’ll evaluate different firmware strategies in our pursuit of maximum-frequency analog signal generation.

In this article, we’ll evaluate different firmware strategies in our pursuit of maximum-frequency analog signal generation.

Fixed-point representation allows us to use fractional numbers on low-cost integer hardware.

Fixed-point representation allows us to use fractional numbers on low-cost integer hardware.

The overlap-add method allows us to use the DFT-based method when calculating the convolution of very long sequences.

The overlap-add method allows us to use the DFT-based method when calculating the convolution of very long sequences.

This article looks at new technologies regarding the existing cable network, in particular, power amplifier digital predistortion.

This article looks at new technologies regarding the existing cable network, in particular, power amplifier digital predistortion.

The DFT provides an efficient way to calculate the time-domain convolution of two signals.

The DFT provides an efficient way to calculate the time-domain convolution of two signals.

This article will verify that a suitable structure can reduce the sensitivity of a digital filter response to the…

This article will verify that a suitable structure can reduce the sensitivity of a digital filter response to the coefficient quantization.

This article will review the basics of the frequency sampling method for designing FIR filters.

This article will review the basics of the frequency sampling method for designing FIR filters.

In this multipart industrial IoT series, we will break down and explore the fundamental aspects of the edge node…

In this multipart industrial IoT series, we will break down and explore the fundamental aspects of the edge node interpretation within the larger IoT framework: sensing, measuring, interpreting, and connecting data, with additional consideration for power management and security.

This article provides detailed information on sampling audio signals and transferring the data to a PC for analysis.

This article provides detailed information on sampling audio signals and transferring the data to a PC for analysis.

This article will review the basics of the decimation-in-time FFT algorithms.

This article will review the basics of the decimation-in-time FFT algorithms.

This article will review the use of window functions to alleviate the DFT leakage.

This article will review the use of window functions to alleviate the DFT leakage.