Accession Number : AD0833968

Title :   TRANSMISSION OF SIGNALS BY INTEGRATION OF CODED SIGNALS,

Corporate Author : GENERAL DYNAMICS/ASTRONAUTICS SAN DIEGO CA

Personal Author(s) : Harmuth, Henning

Report Date : NOV 1959

Pagination or Media Count : 17

Abstract : With respect to susceptibility to noise and bandwidth, pulse code modulation is the most favorable type of modulation among those in use today. For the same transmission capacity it requires, however, still eight times the transmitting power of an ideal system (2). The reason is that, broadly speaking, the transmitted signals must include, in addition to the intelligence proper as contained in the encoded pulse group, information as to the position of the individual pulses so as to enable the receiving equipment to decode the incoming signal. The need for such additional information can be eliminated if decoding is not effected by scanning for pulse or no pulse, but by integration over the entire pulse group. (Author)

Descriptors :   *INTEGRATORS), (*PULSE CODE MODULATION, NOISE, BANDWIDTH, LOW PASS FILTERS, CODING, DECODING, NUMERICAL INTEGRATION, MATHEMATICAL ANALYSIS.

Subject Categories : Electrical and Electronic Equipment
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE