| 摘要 |
PURPOSE:To obtain a non-linear distortion characteristic of a wide band corresponding to a non-linear distortion characteristic being an artificial object, by varying a level of non-linear distortion divided into four or two paths by a 90 deg. phase difference. CONSTITUTION:An input signal is made to branch by a signal distributor 1, and one of them is inputted to a non-linear distortion generator 2. Its output is distributed to fout non-linear signals which are 90 degrees out of phase each other, by an antiphase distributor 7 and signal distributors 8, 9. As for these signals, its magnitude is adjusted by variable attenuators 10-13. The signals of these four paths are synthesized by signal synthesizers 51-53. On the other hand, the other signal which is made to branch by the signal distributor 1 is transmitted as a signal of a linear characteristic path passing through a delay line 6. Subsequently, the non-linear signal and the signal of the linear characteristic path become an output signal of a main circuit synthesized by a signal synthesizer 54. |
