| 摘要 |
The present invention relates to an I/Q modulator, which is used for processing a time-discrete I/Q signal comprising an I component and a Q component which is orthogonal thereto, the I/Q signal being based on a sampling frequency which is equal to four times a carrier frequency of a carrier signal onto which the I/Q signal is to be modulated, and which comprises a predistorter for predistorting the I component and the Q component with a predistortion signal, which depends on the I component and the Q component, so as to form a predistorted I component and, in temporal alternation therewith, a predistorted Q component, and an adjuster for adjusting the signs of the temporally alternating predistorted I components and predistorted Q components so that two temporally successive predistorted components have a first sign and two additional successive predistorted components, which follow said first-mentioned components in time, have a second sign which is inverse to said first sign, so as to produce therefrom an output signal at an output of the I/Q modulator.
|
