NDLI: Optimal space communications techniques. [discussion of video signals and delta modulation

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Optimal space communications techniques. [discussion of video signals and delta modulation

Content Provider	NASA Technical Reports Server (NTRS)
Author	Schilling, D. L.
Copyright Year	1974
Description	The encoding of video signals using the Song Adaptive Delta Modulator (Song ADM) is discussed. The video signals are characterized as a sequence of pulses having arbitrary height and width. Although the ADM is suited to tracking signals having fast rise times, it was found that the DM algorithm (which permits an exponential rise for estimating an input step) results in a large overshoot and an underdamped response to the step. An overshoot suppression algorithm which significantly reduces the ringing while not affecting the rise time is presented along with formuli for the rise time and the settling time. Channel errors and their effect on the DM encoded bit stream were investigated.
File Size	2988905
Page Count	74
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19750007786
Archival Resource Key	ark:/13960/t9k40k21b
Language	English
Publisher Date	1974-12-26
Access Restriction	Open
Subject Keyword	Communications And Radar Pulse Amplitude Video Communication Pulse Duration Error Analysis Algorithms Space Communication Delta Modulation Channels Data Transmission Computerized Simulation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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