USRA Houston Repository

Browsing by Author "Lanning, H. E."

Browsing by Author "Lanning, H. E."

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  • Active Seismic frame synchronization 
    Lanning, H. E. (Bendix Systems Division, 1966)
    This ATM determines the probability of sync, false sync, and the probability of loosing sync for an 11 bit and 6 bit frame sync code. The number of bits/frame range from 1344 to 4032. The amount of data lost during loss ...
  • ALSEP communications performance margin summary 
    Lanning, H. E. (Bendix Aerospace Systems Division, 1969)
    This document re-evaluates the ALSEP/MSFN communication performance margins as a result of performance measurements made upon existing ALSEP hardware.
  • ALSEP link performance vs antenna pointing error 
    Lanning, H. E. (Bendix Aerospace Systems Division, 1967)
    This analysis determines the command link received power margin in excess of that required for an error rate of l0 to the -9 as a function of the antenna (ALSEP) pointing error.
  • Modified ALSEP maximum antenna pointing error 
    Lanning, H. E. (Bendix Aerospace Systems Division, 1969)
    This analysis determines the maximum allowable antenna pointing error for the telemetry and command links based upon a 0 db performance margin for either nominal or worst case conditions for communication margins to be maintained.

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