Variable frequency comb generation
AssigneeThe Boeing Company
InventorGary A. Ray
Life of this patent
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Abstract
A method and apparatus for generating a frequency comb. A sine wave comprising samples is generated at a selected sampling rate and a selected increment corresponding to a number of samples for a period of the sine wave using a lookup table or a CORDIC algorithm. The sine wave is processed by a universal differential equation to generate the frequency comb. Characteristics of the frequency comb generated from the sine wave are controlled by changing the sampling rate and the increment.
Claims20
A method of generating a frequency comb, comprising:
- generating a sine wave;
- and
- processing the sine wave by a universal differential equation to generate the frequency comb from the sine wave.
A method of generating a frequency comb, comprising:
- selecting a sampling rate and an increment;
- generating a sine wave comprising samples at the selected sampling rate and the selected increment corresponding to a number of samples for a period of the sine wave;
- and
- processing the sine wave to generate the frequency comb;
- wherein:
- a starting frequency in the frequency comb is a function of the selected sampling rate and the selected increment;
- a number of frequencies in the frequency comb is a function of the selected increment;
- and
- a frequency spacing of the frequencies in the frequency comb is a function of the selected sampling rate and the selected increment.
An apparatus for generating a frequency comb, comprising:
- a sine wave generator configured to generate a sine wave;
- and
- a universal digital filter configured to process the sine wave by a universal differential equation to generate the frequency comb.
Dependencies are inferred from the claim text.