Weaver modulator
In radio communications, single-sideband modulation (SSB) or single-sideband suppressed-carrier (SSB-SC) is a refinement of amplitude modulation that more efficiently uses transmitter power and bandwidth. Amplitude modulation produces an output signal that has twice the bandwidth of the original baseband signal. Single-sideband modulation avoids this bandwidth doubling, and the power wasted on a carrier, at the cost of increased device complexity and more difficult tuning at the receiver.

This is an excerpt from the article Weaver modulator from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.
The article Weaver modulator at en.wikipedia.org was accessed 10 times in the last 30 days. (as of: 11/04/2013)
Images on Weaver modulator
Preview image:
Original:
Search results from Google and Bing
1
1
1
Single-sideband modulation - Wikipedia, the free encyclopedia
[edit]. Another variation, the Weaver modulator, uses only lowpass filters and quadrature mixers, and is a favored method in ...
en.wikipedia.org/wiki/Single-sideband_modulation
2
3
2
WEAVER`S SSB GENERATOR
ACHIEVEMENTS: exposure to Weaver`s SSB generator, and its alignment procedure. .... This is a requirement of the Weaver modulator. But in practice it is a.
www.eng.auburn.edu/~troppel/courses/TIMS-manuals-r5/TIMS%20Experiment%20Manuals/Student_Text/Vol-A2/A2-02.pdf
5
5
3
Weaver modulation - Encyclopedia - The Free Dictionary
Modulation resulting from elimination of all components of one sideband from an amplitude-modulated wave. McGraw-Hill Dictionary of Scientific & Technical ...
encyclopedia2.thefreedictionary.com/Weaver+modulation
18
4
4
Weaver Modulation. - Activity Stream - QRZ Forums
Donald K Weaver was one of my profs in college (Montana State Univ) where he taught many years after having been at SRI along with many of the MSU profs (MSU had a ...
forums.qrz.com/showthread.php?287984-Weaver-Modulation
3
>30
5
Quadrature Modulators Solve Old Problems with Self-Calibration ...
Oct 21, 2012 ... When I think of quadrature modulators, I usually think of the Weaver single- sideband (SSB) modulator shown in Figure 1, which is intended to ...
mathscinotes.wordpress.com/2012/10/21/quadrature-modulators-solve-old-problems-with-self-calibration/
4
>30
6
5.4 Single Sideband Modulation (SSB) - Department of Electrical ...
Apr 14, 2014 ... 5.4.4 SSB generation using Weaver's method ..... SSB Hardware Implementation using a “Weaver modulator”. . . . 0. 90. . . . ϕSSB±. (t).
local.eleceng.uct.ac.za/courses/EEE3086F/notes/508-AM_SSB_2up.pdf
6
>30
7
A Third Method of Generation and Detection of Single ... - traktoria.org
is applid to a balanced modulator along with the first translating or carrier ... normal sidebands appear in the output of the balanced modulation, but the carrier ...
traktoria.org/files/electronics/communication/A_Third_Method_of_Generation_and_Detection_of_Single-Sideband%20Signals__Weaver.pdf
12
20
8
ECE 5625 Spring 2014 Project 1 Multicarrier SSB Transceiver
In this team project you will be implementing the Weaver SSB modulator as part of a multicarrier transmission scheme. Coherent demodulation will be ...
www.eas.uccs.edu/wickert/ece5625/lecture_notes/5625_project1.pdf
7
>30
9
Chapter 2 - SSB
The output of one balanced modulator is USB + LSB (as for the filter method). ... The Weaver method of SSB generation is similar to the phasing method but ...
homepage.ntlworld.com/johngduffy/Project/Chapter2.htm
8
>30
10
AN1981 New low-power single sideband circuits - NXP ...
Oct 29, 1997 ... three use a balanced modulator to produce a double-sideband ... derivation of the phasing technique called here the “Weaver” method.
www.nxp.com/documents/application_note/an1981.pdf
Search results for "Weaver modulator"
Google: approx. 151.000
bing: approx. 41.100
Weaver modulator in science
Single-sideband modulation - Princeton University
Single-sideband modulation (SSB) is a refinement of amplitude modulation that more ... 2.1 Bandpass filtering · 2.2 Hartley modulator · 2.3 Weaver modulator.
Single-sideband modulation - Wikipedia, the free encyclopedia
[edit]. Another variation, the Weaver modulator, uses only lowpass filters and quadrature mixers, and is a favored method in ...
David Weaver, Ph.D. - Vanderbilt University
Weaver received his Ph.D. in Biochemistry from the University of Tennessee, ... on developing techniques for discovering chemical modulators of potassium ...
Weaver, Charles David - Vanderbilt University School of Medicine
Mar 10, 2011 ... Email Address:david.weaver@vanderbilt.edu ... Development of a high throughput screen for allosteric modulators of melanocortin-4 receptor ...
GABAA receptor subunit mRNA expression in the weaver ...
... receptor subunit mRNA expression in the weaver cerebellum: modulation by ... (1)Department of Pharmacology, Case Western Reserve University, School of ...
Sensing and Modulation of Invadopodia across a Wide Range of ...
UBM and UBM-BM were kindly provided by Dr. Stephen Badylak (University of ..... Zahir N., Weaver V.M. Tensional homeostasis and the malignant phenotype.
[PDF]Digital Single-Side Band Modulation Using Digital Signal ... - AICIT
Division of Electrical & Electronics Engineering, Kongju National University, ... Weaver modulation has relatively less computation load than above two ...
Weaver modulation - Encyclopedia - The Free Dictionary
Modulation resulting from elimination of all components of one sideband from an amplitude-modulated wave. McGraw-Hill Dictionary of Scientific & Technical ...
Patents - Vanderbilt Center for Neuroscience Drug Discovery
Conn, P.J., Lindsley, C.W., Weaver, C.D., Rodriguez, A.L., Niswender, C.M. Jones , ... Benzamide mGluR5 Positive Allosteric Modulators and Methods Of Making and .... Vanderbilt Center for Neuroscience Drug Discovery | Vanderbilt University  ...
[PDF]the university of michigan research institute ann arbor a ... - Deep Blue
Weaver's method of 881380 generation. Modulation voltage spectrum. Spectrum at output of balanced modulators. Output signal spectrum. Filter response.
Books on the term Weaver modulator
The Design of CMOS Radio-Frequency Integrated Circuits
Thomas H. Lee, 2004
We will also see in that chapter that the Weaver modulator is extremely versatile because it is effectively a general-purpose complex signal processor. By appropriate choices of the up- and downconversion frequencies and of their associated ...
Weaver Binocular System
Weaver Binocular System
Weaver, 2011
Weaver Binocular System keeps your binoculars ready for action. Ergonomically designed for hours of comfortable wear and constructed of rugged nylon, this system guarantees binoculars are kept out of the way yet close at hand for fast glassing action.
Advances in Communications: Volume 1: Advances in ...
D.G. Lainiotis, N.S. Tzannes, 1980
Thus we have : -Weaver Xodulators -FFT processing -Multistage Systems. 3.1. Weaver modulator Based Transmultiplexors. An early attempt to perform an all digital TDM-FDX Translator has been reported by S.L. Freeny et al. in 1971 (1,2, 3).
The Design of CMOS Radio-Frequency Integrated Circuits, Second Edition
The Design of CMOS Radio-Frequency Integrated Circuits, Second Edition
Thomas H. Lee, 2003
This expanded and thoroughly revised edition of Thomas H. Lee's acclaimed guide to the design of gigahertz RF integrated circuits features a completely new chapter on the principles of wireless systems. The chapters on low-noise amplifiers, oscillators and phase noise have been significantly expanded as well. The chapter on architectures now c...
White Space Communication Technologies
Nuno Borges Carvalho, Alessandro Cidronali, Roberto Gómez-García, 2014
Moreover, if only one of the RF sidebands is desired, digital mixing based on the Weaver modulator [53] can be implemented in order to generate a quadrature IF signal that will reject the undesired image after the RF up-conversion stage.
Signal And Image Processing Sourcebook
Robert Libbey, 1994
For SSB, both the modulation and demodulation circuits are more complex and costly than for conventional AM. There are three model ... four balanced modulators. This advanced system is termed the Weaver or "third method" in many texts.
Integrated Circuits for Wireless Communications
Integrated Circuits for Wireless Communications
Paul R. Gray, 1998
"High-frequency integrated circuit design is a booming area of growth that is driven not only by the expanding capabilities of underlying circuit technologies like CMOS, but also by the dramatic increase in wireless communications products that depend on them. INTEGRATED CIRCUITS FOR WIRELESS COMMUNICATIONS includes seminal and classic papers ...
Proceedings of the Annual Princeton Conference on ...
1969
Summary Single- sideband modulation is considered here from a systems point of view. The starting point is a combination of two techniques from the prior art: Weaver modulators and N-path filters. The combination is modified and ...
Development of Google searches


Blog posts on the term
Weaver modulator
Quadrature Modulators Solve Old Problems with Self-Calibration | Math Encounters Blog
Introduction I was reading EETimes this month when I saw an interesting article on analog quadrature modulators (AQMs). I have not looked at these devices in a while and I noticed that some of my early issues with AQMs may not be a problem anymore. My issues had to do with the sensitivity of AQMs…
mathscinotes.wordpress.com/2012/10/21/quadrature-modulators-solve-old-problems-with-self-calibration/
Single-sideband modulation - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Single-sideband_modulation
Weaver modulation definition of Weaver modulation in the Free Online Encyclopedia
Encyclopedia article about Weaver modulation. Information about Weaver modulation in the Columbia Encyclopedia, Computer Desktop Encyclopedia, computing dictionary.
encyclopedia2.thefreedictionary.com/Weaver+modulation
DSP tutorial: SSB modulation using the Weaver method at dreamport | nonoo.hu
Nonoo's personal homepage
dp.nonoo.hu/projects/ham-dsp-tutorial/11-ssb-weaver/
Wolfram Demonstrations Project
Explore thousands of free applications across science, mathematics, engineering, technology, business, art, finance, social sciences, and more.
demonstrations.wolfram.com/AmplitudeModulation/
Figure P2.18 Shows The Block Diagram Of Weaver's ... | Chegg.com
Answer to Figure P2.18 shows the block diagram of Weaver's method for generating SSB modulated waves. The message (modulating) sig...
www.chegg.com/homework-help/questions-and-answers/figure-p218-shows-block-diagram-weaver-s-method-generating-ssb-modulated-waves-message-mod-q5228010
Understanding the 'Phasing Method' of Single Sideband Demodulation
Understanding the 'Phasing Method' of Single Sideband Demodulation by Rick Lyons
www.dsprelated.com/showarticle/176.php
Clone of AM modulator circuits | Classle
Classle-Online Social Learning Platform for the students to collaborate, share and learn from subject experts
www.classle.net/book/clone-am-modulator-circuits
Optimal Human Modulation | Your Space to Defrag
Your Space to Defrag (by Stephen Sumner)
optimalhumanmodulation.com/
Low-cost ATSC-receiver-compatible digital TV modulator Patent (Patent # 8,391,352 issued March 5, 2013) - Justia Patents Database
A method and apparatus by which ATSC-receiver-compatible digital TV signals may be generated without most of the discrete and/or high-complexity components required by the ATSC specification, through the use of a precomputation of digital filter coefficients that consolidates multiple functions into a single step, and through the derivation of multiple required carrier frequencies using a single oscillator circuit. The resulting design meets all requirements of the ATSC specification, reducing significantly the cost of the necessary signal-processing functions, and in a manner compatible with the VLSI (very-large-scale-integrated) circuit technologies of the field.
patents.justia.com/patent/8391352
123