ABSTRACT
The advent of fast iterative analog computers poses the requirement for storing analog functions for integral multiples of the computer repetition period which is typically of the order of 1 to 10 milliseconds. In addition to function storage for one computer run, it would be desirable to store analog functions for indefinite time intervals to permit table lookup. Typical accuracy requirements might be 0.1 to 0.5 per cent of half-scale at ten times the computer repetition frequency (10 cps to 1000 cps) with somewhat lower accuracy at higher frequencies.
- Korn, G. A., New High-Speed Analog and Analog-Digital Computing Techniques: The ASTRAC System, Electronic Industries, July 1962.Google Scholar
- Eckes, H. R., and G. A. Korn, Digital Program Control for Iterative Differential Analyzers, ACL Memo No. 86, University of Arizona.Google Scholar
- Korn, G. A., High-Speed Iterative Analog-Digital Computation: The ASTRAC II System, ACL Memo No. 93, University of Arizona.Google Scholar
- Korn, G. A., Analog/Hybrid Storage and Pulse Modulation, IEEE Transactions, on Electronic Computers, September 1963.Google Scholar
- Kennedy, J. D., Representation of Time Delays in Huskey, H. D., and G. A. Korn, Computer Handbook, McGraw Hill, 1962.Google Scholar
- Jury, S. H., Memory and Function Generation in Analog Computers, Military Systems Design, January 1962.Google Scholar
- Dundon, T., Magnetostrictive Delay Lines for Digital Applications, Computer Design, January 1963.Google Scholar
- Hybrid Computer Course Notes, Electronics Associates, Inc., Princeton Computation Center, Princeton, New Jersey.Google Scholar
- de Jager, Delta Modulation, A Method of PCM Transmission Using the One Unit Code, Phillips Res. Repts., Vol. 7, 1952.Google Scholar
- Inose, H. Y., Yasuda and J. Murakami, A Telemetering System by Code Modulation, IRE Transactions on Space Electronics and Telemetry, September 1962.Google Scholar
- Storer, J. E., Passive Network Synthesis, McGraw Hill, 1957.Google Scholar
- Handler, H., Measurement of Phase Shift, IEEE Transactions on Electronic Computers, June 1963.Google Scholar
- Inose, H., and Y. Yasuda, A Unity Bit Coding Method by Negative Feedback, IEEE Special International Issue, November 1963.Google Scholar
- Tripp, J. S., A Deterministic Study of Delta Modulation, Kansas State University Bulletin, Special Report Number 17.Google Scholar
Recommendations
Experimental implementation of $$\Delta \Sigma $$ΔΣAD modulator with dynamic analog components
This paper presents an experimental prototype of 2nd-order multi-bit $$\Delta \Sigma $$ΔΣAD modulator with dynamic analog components for low power and high signal to noise and distortion (SNDR) application. The integrators in the modulator are realized ...
Delta-sigma modulation for direct digital frequency synthesis
This paper compares different ΔΣ modulation techniques for direct digital frequency synthesis (DDS). ΔΣ modulators such as MASH, feedforward, feedback, and error feedback have been implemented in both the phase and frequency domains in a CMOS DDS ...
Analog sigma---delta modulation with Op-Amp gain compensation for nanometer technologies
A new method that compensates for low DC gain in operational amplifiers (Op-Amps) used in discrete time $$\Sigma\Delta$$ Σ Δ modulators is described. Measuring and buffering the error at the Op-Amps inverting terminals enables a complete cancellation of the phase error. ...
Comments