A Disruptive Approach to Digital Broadcasting

Book introduces Patented invention of ZERO SIDEBANDS communications in context of DIGITAL BROADCASTING. It explains new SVURG principals used in 'Z-Mod' modulation method with practical approach. Disclosed SVURG Principals, challenge the belief that all information is carried in "SIDE_BANDS" and establishes that Carrier itself without any side bands can carry many thousands time more data and information. Invention provides three distinct advantages simultaneously in addition to many more, three are: -

1. Reduces spectrum needed to fraction of 1 Hz, or zero bandwidth.
2. Increases data/signal carrying capacity by many thousand time.
3. Reduces radiated RF power requirement to 0.01% or less.

SVURG technique achieves these three major advantages and many more by achieving ultra low "MDS" (Minimum Detectable Signal) level for receiver by reducing the pass band in receiver to fraction of Hz (limited only by hardware). It further provides 100+ dB signal to noise ratio of received signal allowing FDM Data multiplexing to levels unprecedented so far. The scientific requirement of amplitude of each sub-carrier in multiplex is between 8 to 12 dB above the noise floor leaving around 90 dB headroom in the received digital multiplex, providing robust and clean signals.

Z-Mod Modulation technique is universal to all type of modulation, as it removes cross modulation effects completely allowing AM, FM, and PM achieving pure single property variation possible. Like PM only varies the phase of each sine wave cycle at pure carrier frequency. Similarly in FM the frequency variation is in pre-defined step frequencies and phase does not change during the complete cycle generation. Similarly in AM only the amplitude changes at the zero crossing point of the sine wave cycle and does not generate any side band frequencies.

The SVURG process consists of generating pure sine wave cycles at carrier frequency in a 'cycle by cycle' batch process, by applying control on the selected sine property of each individual complete sine cycle at the zero-crossing point. Each complete sine wave cycle from 0 to 360 degree is individually generated in a variety of ways so that each sine wave cycle so generated represents one or more values derived from the modulating signals, for the period of that carrier sine wave cycle. Thus, every complete carrier sine wave cycle so generated will be a pure sine wave cycle (starting from one zero-crossing point and ending at the next zero-crossing point). But it's one (or more) parameter(s) like amplitude, phase or frequency may differ from previous complete cycle or the next cycle. Which parameter of the sine wave cycle will change depends on which type of conventional modulation (AM/FM/PM/any other and combination) is selected. Point to note here is that once the carrier sine cycle starts from zero crossing point all three properties ie phase, frequency and amplitude vector remain static for the duration of that cycle.

The invention is protected by many international patents and the book explains the concept, in one application in Radio broadcast sector. This disruptive technology, can be applied to all existing communication systems t improve their capabilities by millions time. This could solve the spectrum scarcity issue and facilitate growth in, IoT, work from home, distributed controls, artificial intelligence, distance communications, entertainment, satellite communications, surveillance, and remote control, etc. This could be a game changer for creating a virtually connected world with super high speed and reliable internet services for every human being and every connected device.
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In simple words SVURG technique is a disruptive technology and is entitled to be called the "Invention of the Millennium"

Author: Rama Rao Veluri

Publisher: Independently Published

Publication Date: Jul 20, 2021

Number of Pages: 116 pages

Binding: Paperback or Softback

ISBN-10: NA

ISBN-13: 9798540182102