Download or read book The Reduction of Amplitude modulation in Frequency modulated Oscillators written by Wilbur B. Davenport and published by . This book was released on 1943 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phase lock Demodulation of a PM Signal Contaminated with Incidental AM written by George B. Robinson and published by . This book was released on 1972 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Signals from phase-modulated satellite transmitters usually exhibit some degree of incidental amplitude modulation. The effects of incidental AM are analyzed when this type of signal is demodulated by a phase-lock receiver which does not employ a limiter preceding the loop phase detector. The presence of incidental AM causes a reduction in the receiver output signal-to-noise ratio. The tolerable level of AM decreases in proportion to the phase modulation index Beta. For a square-wave modulating signal, a 1 db reduction results at the receiver PM channel output when Beta = 1 radian and the percentage of AM = 23, Beta = 1.2 radians and the percentage of AM = 16, or Beta = 1.5 radians and the percentage of AM = 4. Although only the PM channel of the receiver is used ordinarily, utilizing both the AM and PM channel by summing offers an improvement in S/N relative to the S/N ratio of the PM channel if the percentage of incidental AM is greater than fifteen.
Download or read book Amplitude Modulation Free Wide Band Frequency Modulated Oscillator written by Dick Frank Nelson and published by . This book was released on 1951 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Frequency Modulation Engineering written by Christopher E. Tibbs and published by . This book was released on 1947 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Frequency Modulation Receivers written by Alfred B. Cook and published by Prentice Hall. This book was released on 1968 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reduction of Oscillator Interaction Failures with Frequency Modulation written by Raymond C. Johnson and published by . This book was released on 1970 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The probability of failure of two proximity fuzes employing interacting frequency modulated oscillators is determined. It is shown that, in some fuze to fuze encounter situations, frequency modulation will improve the failure probability of an unmodulated oscillator fuze by the square root of twice the number of lock-in widths to which it is modulated. (Author).
Download or read book Principles of Frequency Modulation written by B. S. Camies and published by . This book was released on 1959 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Elimination of Amplitude Modulation in an F M Receiver by Heterodyne Action written by Fred Lee and published by . This book was released on 1957 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Frequency Modulation written by Lawrence Baker Arguimbau and published by . This book was released on 1956 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Frequency Modulation written by Alexander Schure and published by . This book was released on 1955 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book R F System for Frequency Modulated Cyclotron written by K. R. MacKenzie and published by . This book was released on 1947 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: A grounded grid oscillator and a single dee resonant system for use with a frequency modulated cyclotron are described. 7.5 Mev deuterons have been accelerated with dee voltages up to 15 kv and a frequency range from 9.5 to 12 megacycles. 15 Mev protons have been accelerated with voltages up to 11 kv and a frequency range from 19 to 24 megacycles. Coupling constants, phase correction, amplitude modulation and discharge phenomena are discussed.
Download or read book Amplitude Variations in a Frequency modulated Oscillator written by W. Jack Cunningham and published by . This book was released on 1953 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Frequency modulated Radio written by Kenneth Reginald Sturley and published by . This book was released on 1956 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Frequency Modulation written by Kenneth Reginald Sturley and published by . This book was released on 1950 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Frequency Modulation Receivers written by James Douglas Jones and published by . This book was released on 1956 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Oscillator at Work written by John Francis Rider and published by . This book was released on 1940 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
