Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

Space Electronics and Telemetry, IRE Transactions on

Issue 2 • Date June 1960

Filter Results

Displaying Results 1 - 9 of 9
  • [Front cover]

    Publication Year: 1960 , Page(s): c1
    Save to Project icon | Request Permissions | PDF file iconPDF (603 KB)  
    Freely Available from IEEE
  • IRE Professional Group on Space Electronics and Telemetry

    Publication Year: 1960 , Page(s): nil1
    Save to Project icon | Request Permissions | PDF file iconPDF (93 KB)  
    Freely Available from IEEE
  • [Breaker page]

    Publication Year: 1960 , Page(s): nil1
    Save to Project icon | Request Permissions | PDF file iconPDF (93 KB)  
    Freely Available from IEEE
  • A Device for Automatically Tracking the Roll Position of a Missile

    Publication Year: 1960 , Page(s): 67 - 69
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (600 KB)  

    Many short range missiles are guided in angle or range by optical means. Since these missiles are usually caused to roll in flight for stability reasons, some type of roll position reference device is necessary. The only type of roll reference device in use is a gyro, although various horizon scanners, Doppler, and optical methods have been considered. This paper describes an optical method of roll reference which utilizes the relative positions of two flares of different color attached to the rear of the missile. Since the roll position is known at the launch point, commands to the missile are commutated at the launch point rather than in the missile as is necessary when a gyro or other missile-borne roll reference device is used. Thus, the roll tracker removes from the missile two subsystems (gyro and commutator) while adding two components (two colored flares). View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Six-Channel High-Frequency Telemetry System

    Publication Year: 1960 , Page(s): 69 - 81
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (7004 KB)  

    A frequency-multiplex FM-AM system is described which provides six continuous channels via which waveforms with frequency components in the approximate band 10 cps to 10 kc may be simultaneously telemetered; extension of the frequency coverage to include the band 0-10 cps is achieved by the use of commutated reference levels. A radio frequency in the 465-mcs band and subcarrier frequencies between 250 and 500 kc are used. A short historical introduction is followed by description of the system and of units of the flight and ground equipment, and details of operational results. Future uses of the system are discussed and methods of increasing the useful range are suggested. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Case of FM-AM vs FM-FM Telemetry

    Publication Year: 1960 , Page(s): 81 - 84
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (885 KB)  

    The future role of frequency-division multiplex telemetry is discussed and related to the sampled data problem of time-division multiplex telemetry. It is concluded that the frequency-division method will continue to have important applications and the question is raised regarding what is a desirable frequency-division system on which to standardize in the future. An examination of the shortcomings of the FM-FM system and the electronics state of the art leads to the proposal of an FM-AM system to replace the FM-FM system. The AM radio link would be of synchronous type, without threshold, so that the FM-AM system is properly viewed as an FM system with frequency conversion. This has important advantages in spectrum utilization, receiving station design, and data reduction. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Effect of Different Types of Video Filters on PDM-FM and PCM-FM Radio Telemetry

    Publication Year: 1960 , Page(s): 85 - 92
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1566 KB)  

    The effects of two limiting types of video filters (namely the ideal low-pass vertical cutoff herein called the ILPF and the Gaussian) on the performance of PDM-FM are compared. It is found that minimum allowable pulse height controls the minimum allowed bandwidth of the Gaussian filter and if crosstalk suppression of 50 to 60 db is required, crosstalk controls the minimum allowed bandwidth of the ILPF. In PCM-FM using the sampling video detector, the critical effect is the overlapping of pulses at sampling time; using the integrating detector, the critical effect is the difference in area under the pulse with adjacent pulses not present and the area with no pulse present but the two adjacent pulses present. In general, the results of the theory agree well with experimental results of Aeronutronic [8] and aid in their interpretation. View full abstract»

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

    Publication Year: 1960 , Page(s): 93
    Save to Project icon | Request Permissions | PDF file iconPDF (1079 KB)  
    Freely Available from IEEE
  • [Front cover]

    Publication Year: 1960 , Page(s): c2
    Save to Project icon | Request Permissions | PDF file iconPDF (93 KB)  
    Freely Available from IEEE

Aims & Scope

This Transactions ceased publication in 1962. The new retitled publication is IEEE Transactions on Aerospace and Electronic Systems.

Full Aims & Scope