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Wireless/RF Technical Articles
Test & Measurement
How to Process I/Q Signals in a Software-Defined RF Receiver
This article discusses the mathematical significance of I/Q signals and presents the final steps in the DSP algorithm for decoding frequency-shift-keying baseband signals.
October 04, 2018
How to Use I/Q Signals to Design a Robust FSK Decoder
An improved algorithm, in conjunction with quadrature modulation, can achieve FSK decoding that is not affected by phase misalignment.
October 01, 2018
Digital Signal Processing in Scilab: Understanding Phase Misalignment in FSK Decoding
In this article we’ll use Scilab to explore the effect of unpredictable phase variations in a demodulated frequency-shift-keying baseband signal....
September 28, 2018
Digital Signal Processing in Scilab: How to Decode an FSK Signal
Learn about a DSP technique that extracts the original digital data from a demodulated frequency-shift-keying baseband signal.
September 25, 2018
How to Perform Frequency Modulation with a Digitized Audio Signal
In this article, we’ll use Scilab to create an FM waveform that carries information corresponding to an audio recording.
September 17, 2018
How to Use Scilab to Analyze Frequency-Modulated RF Signals
Computing a discrete Fourier transform can help you to analyze the ways in which RF modulation affects the spectrum of a carrier signal.
September 11, 2018
How to Use Scilab to Analyze Amplitude-Modulated RF Signals
Scilab’s FFT functionality can help you understand the frequency-domain effects of RF modulation techniques.
September 06, 2018
Learn RF Design: Choosing the Right RF Transceiver IC
Learn about integrated circuits that can help you to design customized RF communication systems.
August 10, 2018
Wireless RF Energy Harvesting: RF-to-DC Conversion and a Look at Powercast Hardware
This article looks at the technology and the sample kits that Powercast provides users who want to learn more about the technology.
August 03, 2018
Introduction to the Two-Cavity Klystron Amplifier
Klystron amplifiers are used in a variety of industries, including satellite systems, television broadcasting, radar, particle accelerators, and in the medical field. In this article, we'll...
July 31, 2018
How Do Satellites Communicate with a GPS System? A Look at the GPS Antenna
Antennas provide the wireless linkage required for any satellite-based system. Here's a look at the many antennas of GPS.
July 25, 2018
Understanding the Dynamic Range Specification of an ADC
This article will discuss the dynamic range specification of an ADC.
June 11, 2018
Basics of Digital Down-Conversion in DSP
This article discusses digital down-conversion which is a digital-signal-processing technique widely used in digital radio receivers.
June 04, 2018
What Is the Difference between Conducted and Radiated EMI?
This technical brief explains two distinct types of electromagnetic interference.
April 16, 2018
PLL Frequency Multiplication: Transient Response and Frequency Synthesis
Does the addition of a feedback divider affect PLL transient response? We’ll look at this question and other frequency-multiplication topics in this article....
March 29, 2018
Understanding PLL Applications: Frequency Multiplication
This article explains how a PLL can be used to produce a high-frequency clock from a low-frequency reference signal.
March 26, 2018
Designing and Simulating an Optimized Phase-Locked Loop
In this article we’ll explore PLL transient-response optimization using simulations and a design example.
March 21, 2018
How to Optimize the Transient Response of a Phase-Locked Loop
In this article we’ll explore the mathematical relationships that will help you to design a PLL that quickly and smoothly locks onto the input frequency....
March 19, 2018
Understanding Phase-Locked Loop Transient Response
In this article we’ll use SPICE simulations to take a close look at how a phase-locked loop enters the locked state.
March 14, 2018
How to Simulate a Phase-Locked Loop
This article presents an LTspice circuit that can be used to explore the behavior of a phase-locked loop.
March 12, 2018
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