FREQUENCY SWEEP SIGNAL GENERATOR, FREQUENCY COMPONENT ANALYSIS APPARATUS, RADIO APPARATUS, AND FREQUENCY SWEEP SIGNAL GENERATING METHOD

摘要

A frequency sweep signal generator in which the frequency error is small even when the control values and the oscillating frequencies have a non-linear relation. The frequency sweep signal generator includes a variable frequency oscillator that changes an oscillating frequency according to a change of an input control value, and a first controller that generates a first control value so that the oscillating frequency within a predetermined frequency sweeping range is output. The first controller controls an increment of the first control value to be output to the variable frequency oscillator per unit time so that, when a change of the oscillating frequency with respect to the increment of the first control value is non-linear, the oscillating frequency is changed linearly with respect to a passage of time.

主权项

1. A frequency sweep signal generator comprising:
a variable frequency oscillator that changes an oscillating frequency according to a change of an input control value; and a first controller that generates a first control value so that the oscillating frequency within a predetermined frequency sweeping range is output; wherein the first controller controls an increment of the first control value to be output to the variable frequency oscillator per unit time so that, when a change of the oscillating frequency with respect to the increment of the first control value is non-linear, the oscillating frequency is changed linearly with respect to a passage of time.