Invention Grant
US07161515B2 Calibration system and method for a linearity corrector using filter products 有权
使用过滤器产品的线性校正器的校准系统和方法

  • Patent Title: Calibration system and method for a linearity corrector using filter products
  • Patent Title (中): 使用过滤器产品的线性校正器的校准系统和方法
  • Application No.: US11258237
    Application Date: 2005-10-26
  • Publication No.: US07161515B2
    Publication Date: 2007-01-09
  • Inventor: Keith R. Slavin
  • Applicant: Keith R. Slavin
  • Applicant Address: US OR Beaverton
  • Assignee: Tektronix, Inc.
  • Current Assignee: Tektronix, Inc.
  • Current Assignee Address: US OR Beaverton
  • Agent Matthew D. Rabdau
  • Main IPC: H03M1/84
  • IPC: H03M1/84
Calibration system and method for a linearity corrector using filter products
Abstract:
A calibration system for calibrating a linearity corrector using the sum of filter products is proved, along with a method of calibrating the linearity corrector. The calibration system includes a first and second signal generator for introducing test signals into a signal processing system, such as an ADC. An acquisition memory and processor are provided for acquiring and analyzing the output of the signal processing system and then programming the filter coefficients into the linearity corrector. The method of calibration analyzes acquired intermodulation and harmonic components from the signal processing system and then finds the amplitude and phase response for the filters. The amplitude and phase response is then used to determine a set of filter coefficients.
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