Ternary pseudo-random code matching control method for controllable seismic sources of impact rams

Ternary pseudo-random code matching control method for controllable seismic sources of impact rams

  • CN 104,237,931 A
  • Filed: 10/07/2014
  • Published: 12/24/2014
  • Est. Priority Date: 10/07/2014
  • Status: Active Application
First Claim
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1. a ternary pseudorandomcode match control method for battering ram vibroseis, is characterized in that, comprise the following steps:

  • A, linear shift register is utilized to build ternary m sequence;

    B, utilize mould 3 computing, the ternary m sequence generated is converted into the ternary m sequence formed by 0,1,2 by shift register;

    C, by ternary mapping ruler, the ternary m sequence mapping formed is generated the ternary pseudo-random sequence formed by-1,0,1 by 0,1,2;

    D, codes match being carried out to the ternary pseudo-random sequence generated, when carrying out codes match modulation, carrying out according to coded sequence, and the corresponding delay time of each coding, delay time is arranged according to actual conditions;

    E, mate the output of modulation signal by battering ram vibroseis excitation signal generator control coding, achieve the control to battering ram duty.

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