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The example shows a sine wave and then shows a spectrum with three frequency components? Also, we should do the continuous case first, either with a continuous...

the signal frequency spectrum is measured [obtained] by measuring a time or space domain signal and then computing the Fourier transform. The signal frequency...

a few occurrences of spectrum to frequency spectrum. I think in all the articles I've noticed, actually electromagnetic spectrum is the better link. The...

connection with a "discrete frequency", which has just as much meaning in the realm of continuous time. "discrete spectrum" is a term with meaning, but...

Radio spectrum and Radio waves, but oppose merging this article (Radio frequency) into either. As 86.136.194.38 points out, just because a signal is oscillating...

radio with changing frequency. Real spread spectrum smears the signal out in such a way that an automated radio can't follow the signal. An automated radio...

File:Bluetooth_signal_behind_wireless_lan_signal.png in article, which is referred from Hidden Signals, showing real-time persistent spectrum of Bluetooth signal under...

line in the lead section confuses me: "Spread-spectrum signals are difficult to intercept. An FHSS signal simply appears as an increase in the background...

amplitude spectrum: the distribution as a function of frequency of the amplitude of the spectral components of a signal or noise,[3] phase spectrum: the distribution...

or reshape the frequency spectrum of a signal according to some prescribed requirements. Filtering is the most common form of signal processing used...

on a wider frequency band. Does anyone have an idea? Shannon's law gives us the maximum possible bit rate given a frequency band and a Signal to Noise ratio:...

text from the article: 22 MHz localized spectrum The 700 MHz auction also bundled several 22 MHz range frequencies. Those are split in several areas. To...

alternatively described in terms of a frequency spectrum, given by the Fourier transform of the original signal." There are conditions under which the...

Actually, FM is more frequency efficent than AM, except that commercial FM uses wide FM to get more audio bandwidth into the signal. If FM used the same...

there any article on Audible spectrum?Anwar (talk) 19:35, 3 May 2008 (UTC) Isn't the exact range of the visible spectrum disputed?--Luke Elms 20:33, 17...

May 2010 (UTC) Interesting. It says "A signal with positive-frequency components only is called an Analytic Signal." But that seems to me to be an idiosyncratic...

credibility when we assert that complex signals are simpler than real ones. What I would say about negative frequencies and real sinusoids is not that they...

maximum usable frequency for signals to bounce back down - so a VHF or UHF frequency would usually be suitable, while an HF frequency would be a poor...

uses baseband signalling. It might be that some statements in the article are wrong. The important one being that the frequency spectrum goes close to...

undersampling of bandpass signals, where the sampling rate must be at least equal to the bandwidth rather than twice the upper cutoff frequency. Mange01 (talk)...