Intelligent antenna implementing method based on software radio and implement system thereof

Intelligent antenna implementing method based on software radio and implement system thereof

  • CN 101,133,659 B
  • Filed: 12/29/2005
  • Issued: 05/18/2011
  • Est. Priority Date: 06/08/2005
  • Status: Active Grant
First Claim
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1. smart antenna implementation method based on software radio, be used for the IMT-2000 code division multiple access system, it is characterized in that, select corresponding adaptive beam-forming algorithm to calculate weights, and form wave beam output according to described weights according to the radio communication channel environmental characteristic;

  • Described smart antenna implementation method based on software radio specifically may further comprise the steps;

    Step 1, environment classification and identification module are classified to radio communication channel according to described radio communication channel environmental characteristic and are discerned;

    Step 2 receives the adaptive beam algorithm and selects the output as a result selective reception adaptive algorithm of computing module according to described environment classification and identification module, and calculates the reception weights according to the output of received beam formation module, exports to received beam and forms module;

    Step 3, received beam form module and according to described reception weights and baseband signal a plurality of single channel signals are merged the output of formation received beam;

    Step 4, emission adaptive beam algorithm selection computing module selects to launch adaptive algorithm according to the output result of described environment classification and identification module, and calculates emission value according to the output of received beam formation module, exports to launching beam and forms module;

    Step 5, launching beam form the array data formation launching beam output of module according to described emission value and transmission channel;

    Wherein,In the described step 2, reception adaptive beam algorithm selection computing module selects high specific to merge respectively, modulo n arithmetic is weighed in improvement, Wei Na separates and pilot bit assists LMS DRMTA that first kind channel, second type channels, the 3rd type channels and the 4th type channels correspondence are calculated the reception weights;

    In the described step 4, emission adaptive beam algorithm selects computing module to select transmit diversity, improved weighing apparatus modulo n arithmetic respectively, and the characteristic value and the direction of arrival algorithm for estimating that form based on wave beam calculate emission value to described first kind channel, second type channels, the 3rd type channels and the 4th type channels correspondence.

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