High frequency content recovering methd and device for over-sampled synthesized wideband signal

High frequency content recovering methd and device for over-sampled synthesized wideband signal

CN
  • CN 1,328,683 A
  • Filed: 10/27/1999
  • Published: 12/26/2001
  • Est. Priority Date: 10/27/1998
  • Status: Abandoned Application
First Claim
Patent Images

1. high fdrequency component restorer, be used for the front is carried out a WBSR wideband signal recovery high fdrequency component of down-sampling, and the synthetic version of an over-sampling that is used for described high fdrequency component is input to described down-sampling broadband signal is to produce an entire spectrum synthesized wideband signal, and described high fdrequency component restorer comprises:

  • A) noise generator is used to produce a noise sequence;

    B) frequency spectrum shaping unit is used for respect to the described down-sampling broadband signal of expressionShaping parameter, described noise sequence is carried out shaping;

    WithC) injection circuit is used for described frequency spectrum defeated by the noise sequence of shapingGo in described over-sampling composite signal version, produce described entire spectrum synthetic wideband thusSignal.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×