Accession Number:

AD0639788

Title:

DEMODULATION OF ANGLE-MODULATED TELEMETRY SIGNALS. VOLUME II. REVIEW OF DEMODULATION METHODS,

Descriptive Note:

Corporate Author:

WESTERN DEVELOPMENT LABS PHILCO CORP PALO ALTO CALIF

Personal Author(s):

Report Date:

1966-08-01

Pagination or Media Count:

283.0

Abstract:

The report presents a review of the various methods available for the demodulation of the angle-modulated sinusoids. Three major sections are contained in this report Demodulation of Analog Angle-Modulated Signals Conventional FM Discriminators Phase-Locked Demodulation, Special Feedback and Feedforward Demodulators for Analog Modulated Signals, and Digital Signalling. In Section 2 conventional discriminator detection is discussed along with various forms of phase-locked demodulation. These areas have received the greatest attention in the literature and consequently are given the greatestspace in this report. Section 3 describes a wide variety of special feedback and feedforward demodulation methods for angle-modulated signals. The frequency-feedback demodulator is considered here along with the numerous forms of modified phase-locked loops. Feedforward demodulation methods are also discussed. Nonlinear post-detection filtering, described in greater detail in Vol. I AD-639 787, is reviewed here for completeness. Various binary and M-ary methods of digital signalling are reviewed in Section 4. Optimum and near-optimum detection methods are described for PCM-FM, FSK, PSK, DPSK, MPSK, M-ary coded PSK, and MFSK. Author

Subject Categories:

  • Telemetry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE