By Topic

Communications, IEEE Transactions on

Issue 10 • Date October 1973

Filter Results

Displaying Results 1 - 20 of 20
  • [Front cover and table of contents]

    Publication Year: 1973 , Page(s): 0
    Save to Project icon | Request Permissions | PDF file iconPDF (162 KB)  
    Freely Available from IEEE
  • Correction to "The Development of the ATC Radar Beacon System: Past, Present, and Future"

    Publication Year: 1973 , Page(s): 1159
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (125 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • [Back cover]

    Publication Year: 1973 , Page(s): 0
    Save to Project icon | Request Permissions | PDF file iconPDF (225 KB)  
    Freely Available from IEEE
  • In-Band Generation of Synchronous Linear Data Signals

    Publication Year: 1973 , Page(s): 1116 - 1122
    Cited by:  Papers (4)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (544 KB)  

    In-band generation of synchronous linear data signals eliminates the need for preliminary generation of a baseband signal and sharp cutoff filtering. However, the ratio of carrier frequency to pulsing rate must, in general, be an integer if the signal is to be produced by successive pulsing of a single fixed filter. As a consequence, a singlesideband signal of bandwidth View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On Sequential M-ary Orthogonal Modulation

    Publication Year: 1973 , Page(s): 1100 - 1108
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (736 KB)  

    This paper examines a M -ary sequential orthogonal (OM) communications system. A similar M -ary sequential pulse-amplitude modulation (PAM) problem was previously considered by Hecht and Schwartz [10], and by the author. We examine the following problem: given that one of them signals is repetitively sent over an additive Ga... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Intersymbol Interference Performance of Systems with Correlated Digital Signals

    Publication Year: 1973 , Page(s): 1147 - 1152
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (536 KB)  

    For a digital system with correlated digital symbols, we derive upper and lower bounds on the probability of error when the system is subject to intersymbol interference and additive Gaussian noise. The bounds are expressed in terms of the error probability obtained with a finite number of intersymbol interference terms and some parameters associated with the remainder terms. We also show that the... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Information Extraction, SNR Improvement, and Data Compression in Multispectral Imagery

    Publication Year: 1973 , Page(s): 1123 - 1131
    Cited by:  Papers (42)  |  Patents (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1176 KB)  

    The Karhunen-Loève transformation is applied to multispectral data for information extraction, SNR improvement, and data compression. When applied in the spectral dimension, the transform provides a set of uncorrelated principal component images very useful in automatic classification and human interpretation. Significant improvements in SNR and estimates of the noise variance are also shown ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Computer-Aided Group Delay Equalization for Broad-Band Satellite Transponder Applications

    Publication Year: 1973 , Page(s): 1152 - 1156
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (472 KB)  

    Equalization of the group delay characteristic of a satellite repeater has been examined. The channel group delay includes the transmit and receive filter group delay, and the transponder filter group delay. The perturbation of the transponder group delay of a satellite channel caused by the dual-path transmission effect resulting from an adjacent channel has also been studied. Various combination... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Multics System

    Publication Year: 1973 , Page(s): 1166 - 1167
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (280 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An Experimental Local PCM-Switching System

    Publication Year: 1973 , Page(s): 1144 - 1147
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (472 KB)  

    This paper discusses a local PCM switching network. The characteristics of this network are demonstrated with a model of three local exchanges. All subscribers are connected with the exchange via concentrators. An exchange is controlled by a central processor with a stored program. This processor interacts with the peripheral switching units, represented by the central switching network and two ty... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Cumulative Time Statistics of Surface-Point Rainfall Rates

    Publication Year: 1973 , Page(s): 1131 - 1136
    Cited by:  Papers (41)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (656 KB)  

    Statistics on rainfall rates near and above the earth's surface are needed in order to estimate the percentage of time of absorption, or scattering of radio waves that affect radio system design and electrospace management. The most useful averaging time for computing such rates is on the order of 1 min or less. This paper extrapolates excessive short-duration precipitation data to provide such st... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Phase-Locked and Frequency Feedback Systems: Principles and Techniques

    Publication Year: 1973 , Page(s): 1166 - 1167
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (144 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Unified Analysis of a Class of Digital Systems in Additive Noise and Interference

    Publication Year: 1973 , Page(s): 1075 - 1091
    Cited by:  Papers (19)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1296 KB)  

    A unified approach is presented for evaluation of the error probabilities of a class of digital communications systems in additive noise and interference. This class of systems includes coherent systems such as M -ary amplitude-shift keying (ASK), M -ary phase-shift keying (PSK), and M -a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Hexagonal Multiple Phase-and-Amplitude-Shift-Keyed Signal Sets

    Publication Year: 1973 , Page(s): 1108 - 1115
    Cited by:  Papers (34)  |  Patents (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (760 KB)  

    Selection of a particular signal set array for a bandwidthConstrained multiple phase-and-amplitude-shift-keyed (MPASK) communication system for a linear additive Gaussian noise channel requires consideration of factors such as average and/or peak power versus symbol error probability, signal amplitude dynamic range, simplicity of generation and detection, and number of bit errors per symbol error ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Application of Gauss Quadrature Rules to Digital Communication Problems

    Publication Year: 1973 , Page(s): 1159 - 1165
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (592 KB)  

    In multilevel bandpass data transmission there is usually a difference between the phase of the carrier signal and the phase of the receiver oscillator, thereby causing imperfect demodulation. The use of nonclassical Gauss quadrature rules (GQR's) allows: 1) a theoretical study of the joint effects of phase jitter, thermal noise, and intersymbol interference on average error probability; and 2) a ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Digital and Analog Systems, Circuits and Devices: An Introduction

    Publication Year: 1973 , Page(s): 1168 - 1169
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (184 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Lightning Surges in Open Wire, Coaxial, and Paired Cables

    Publication Year: 1973 , Page(s): 1136 - 1143
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (872 KB)  

    During the 1968 and 1969 lightning seasons, member companies of the Telephone Association of Canada conducted a field investigation of lightning voltages induced in outside plant toll facilities at ten selected sites across Canada. Oscillograms of longitudinal surge voltages occurring in open wire, paired, and coaxial cable were continuously photographed with an automatic camera system especially ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Human Communication: A Unified View

    Publication Year: 1973 , Page(s): 1167 - 1168
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (296 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Emergency Medical Communications in Texas

    Publication Year: 1973 , Page(s): 1157 - 1159
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (360 KB)  

    The Texas State Department of Health has been instrumental in developing an emergency medical communications network throughout the state. This type of network has proved to be a daily convenience and a priceless necessity in times of widespread disaster. It provides a basic voice communications system between hospitals, ambulances, and emergency medical personnel in the state, yet remains simple ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Burst Synchronization of Phase-Locked Loops

    Publication Year: 1973 , Page(s): 1091 - 1099
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (824 KB)  

    Locking a phase-locked loop (PLL) with a sinusoid that is 100-percent AM modulated by a low-duty cycle square wave (i.e., comes in bursts) is an old and well-known technique. Despite this, certain aspects of the technique have not been systematically considered. One of the most important aspects is how to avoid sidelockan undesired mode where the loop locks to a frequency other than the sinusoid's... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

IEEE Transactions on Communications focuses on all telecommunications including telephone, telegraphy, facsimile, and point-to-point television by electromagnetic propagation.

 

 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Robert Schober
University of British Columbia