×

System for transmitting data through a troposcatter medium

  • US 4,601,046 A
  • Filed: 05/15/1984
  • Issued: 07/15/1986
  • Est. Priority Date: 05/15/1984
  • Status: Expired due to Fees
First Claim
Patent Images

1. Apparatus for transmitting and receiving binary data signals in serial form from one station to another through a troposcatter medium, comprising(a) means for converting the serial data signals to parallel data signals;

  • (b) means for periodically inserting a channel test signal into said parallel data signals;

    (c) means for generating sine and cosine harmonics for first and second groups of said parallel data signals, respectively, half of each of said sine and cosine harmonics generators being contained in one channel (I) and the remaining sine and cosine harmonics generators being contained in another channel (Q), each pair of sine and cosine harmonics generators in a given channel having a different harmonic frequency (w1 -w16), respectively, corresponding pairs of sine and cosine harmonics generators in the other channel having corresponding harmonic frequencies, respectively;

    (d) means for adding the sine and cosine harmonics for each channel, thereby to define respective channel signals (SI, SQ);

    (e) means for modulating said channel signals with radio frequency cosine and sine modulating signals, respectively, and for adding the cosine and sine modulated signals, thereby to produce resultant rf signals;

    (f) means for transmitting said resultant rf signals; and

    (g) means for receiving said transmitted signal and for reproducing therefrom the original binary data signals.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×